Skip to main content
MSI MSI · Laptop Black Screen · Worli

MSI Laptop
Black Screen
in Worli

Expert diagnosis & repair for Laptop Black Screen on your MSI device in Worli. Free doorstep pickup, genuine parts & 90-day warranty.

✓ ₹350 Inspection (refunded if you proceed with repair) ✓ Free Doorstep Pickup ✓ Same-Day Repair ✓ 90-Day Warranty ✓ All MSI Models

Open 9 AM – 9 PM · 7 days · ₹350 inspection fee (refunded if you proceed with repair)

Technician inspecting a laptop motherboard under a microscope at the repair bench Technician inspecting a laptop motherboard under a microscope at the repair bench
Xigox technicians at the repair bench
Symptom Checker

Is Your MSI Device Showing These Signs?

Common symptoms of Laptop Black Screen on MSI devices. Recognise 2 or more? Book a ₹350 inspection (refunded if you proceed with repair) now.

Screen cracked, shattered or deeply scratched

Display flickering, showing lines, or goes blank

Touch response inaccurate or completely unresponsive

Dead pixels, discolouration or screen burn-in visible

Screen only functions at certain tilt angles

Display panel physically separated from the chassis

Don't Delay — Laptop Black Screen Gets Worse Over Time

Unaddressed hardware issues worsen and can lead to secondary damage, escalating repair costs significantly.

Book Inspection (₹350)
Root Cause Analysis

Why Does Laptop Black Screen Happen on MSI Devices?

Knowing the root cause ensures a precise repair — not just a temporary fix.

Physical Impact

Accidental drops, pressure or blunt force fracturing the display panel or digitiser layer.

Electrical Surge

Power spikes or incompatible chargers damaging the backlight driver or display IC.

Thermal Stress

Extreme temperature cycles causing LCD delamination or pixel degradation over time.

Manufacturing Defect

Factory-level quality issues in the display module, more common in older models.

Cost Estimate

MSI Laptop Black Screen Repair Cost in Worli

Transparent pricing · ₹350 inspection fee (refunded if you proceed with repair) first · Pay only after approval

Repair TypeEstimated CostWarranty
Bezel Clip Repair ₹549 - ₹1,199 60 days
Laptop Blue Screen Fix — Basic fix ₹599 90 Days
Laptop & Computer Blue Screen (BSOD) Fix — Basic fix ₹599 90 Days
Laptop & Computer Black Screen Fix — Basic fix ₹599 90 Days
Crack Repair ₹749 - ₹1,899 60 days
Bezel Reattachment ₹749 - ₹1,699 60 days

Final cost confirmed after ₹350 inspection (refunded if you proceed with repair). Work starts only with your approval.

Get Exact Quote

Why Us?

Why Choose Xigox for MSI Laptop Black Screen in Worli?

With 1,00,026+ successful repairs and a 4.9-star rating, Xigox is an independent MSI repair specialist serving Worli. Serving all addresses in the 400018 postal zone.

Free Pickup & Drop

Collection and return anywhere in Worli at no charge for lab-based MSI work — we don't bill for convenience.

Transparent Pricing

₹350 inspection fee (refunded if you proceed). Written quote before any MSI Laptop Black Screen work begins.

No Fix, No Repair Fee

If we cannot resolve your MSI Laptop Black Screen issue, you pay nothing beyond the inspection fee.

Component-Level Repairs

We repair MSI hardware at chip and board level where it's safe to do so — often a fraction of a full-module swap.

Experienced Technicians

Our engineers work on MSI hardware regularly. Every repair is tested before return.

Genuine & OEM-Grade Parts

We use genuine MSI parts wherever available; otherwise OEM-compatible components.

1,00,026+
Repairs Completed

Since 2011

4.9 ★
Average Rating

9,727+ reviews

90 Days
Repair Warranty

Parts & labour

30 Min
Avg Response

For common issues

Free
Pickup & Drop

₹350 inspection fee

2011
Est. Since

15+ yrs in Mumbai City

Who repairs your device

Repaired in-house by Xigox technicians

Your MSI is handled by Xigox technicians from start to finish. It is never handed on to another shop. Work that needs the repair bench is done at our workshop in Virar West.

Board-level faults are traced with a microscope, a multimeter and a soldering station before any part is replaced, and parts are fitted only after you approve the quote.

We don't open your personal files during a repair. When a job needs access to your data, such as data recovery or a Windows reinstall, we ask you first.

  • Repaired in-house, not outsourced
  • Quote approved by you before work starts
  • Your files stay private
  • Microscope and board-level tools
  • Genuine or OEM-grade parts
  • 90-day warranty on repairs
Technician inspecting a laptop motherboard under a microscope at the repair bench Technician testing a laptop mainboard with a multimeter beside a Xigox-branded monitor Technician brushing dust off an opened laptop motherboard with a cleaning brush Technician inspecting a laptop motherboard under a microscope at the repair bench
Xigox technicians at the repair bench.
Our Process

How We Fix MSI Laptop Black Screen

Step-by-step from booking to delivery — complete transparency, no surprises

01

Tell Us the Problem

Call, WhatsApp or book online. Tell us about the Laptop Black Screen on your MSI laptop or computer in Worli. No technical expertise needed.

02

Free Pickup & Drop

We pick up your MSI laptop or computer from your Worli address at no transport cost. Bring it to us or we come to you.

03

₹350 Inspection

A MSI specialist examines your laptop or computer and identifies the exact root cause of the Laptop Black Screen. Full written report provided — ₹350 fee refunded if you proceed with repair.

04

Transparent Quote

We share a detailed repair quote. Work begins only after your explicit approval — no hidden charges, no surprises.

05

Professional Repair

Our engineers fix the Laptop Black Screen using OEM-grade MSI parts. A 12-point quality checklist is completed before your laptop or computer is returned.

06

90-Day Warranty + Delivery

Your MSI laptop or computer is returned to your Worli address with a written 90-day warranty. Same fault recurs? We fix it free of charge.

Customer reviews

What Customers Say About Laptop & Computer Repairs in Worli

4.9/5 · 9 reviews shown

See all 9,727+ reviews

Fujitsu laptop — Fujitsu Hard Drive Replacement

“Excellent Fujitsu Hard Drive Replacement service for my Fujitsu laptop. Diagnosed quickly and used a proper replacement part.”

Xigox reply: Thank you for trusting Xigox with your Fujitsu repair.

N Neha Kapoor Dadar · 28 Jul 2026 7

Samsung Galaxy Book3 360 — Samsung OS Installation

“Samsung OS Installation on my Samsung Galaxy Book3 360 was completed same day with fair, transparent pricing.”

Xigox reply: Thank you for trusting Xigox with your Samsung repair.

K Kabir Khanna Lower Parel · 22 Jul 2026 3

Fujitsu laptop — Fujitsu Fan Replacement

“Wasn't sure Xigox serviced my Fujitsu Fan Replacement, but they were fully equipped for the Fujitsu laptop and fixed it fast.”

Xigox reply: Thank you for trusting Xigox with your Fujitsu repair.

R Rohan Verma Colaba · 29 Jul 2026 6

Fujitsu laptop — Fujitsu Screen Replacement

“Excellent Fujitsu Screen Replacement service for my Fujitsu laptop. Diagnosed quickly and used a proper replacement part.”

Xigox reply: Thank you for trusting Xigox with your Fujitsu repair.

K Karan Malhotra Andheri · 18 Jul 2026 7

Samsung Galaxy Book3 360 — Samsung Keyboard Replacement

“Booked Samsung Keyboard Replacement for my Samsung Galaxy Book3 360 online. Doorstep pickup and clear communication throughout.”

Xigox reply: Thank you for trusting Xigox with your Samsung repair.

Y Yash Chauhan Juhu · 25 Jul 2026 10

Samsung Galaxy Book4 — Samsung Power Jack Repair

“Needed Samsung Power Jack Repair for my Samsung Galaxy Book4 — Xigox technicians handled it professionally with a warranty.”

Xigox reply: Thank you for trusting Xigox with your Samsung repair.

M Meera Pillai Malad · 21 Jul 2026 4
Page 1 / 2

← Swipe or tap dots to browse →

Repair examples

Recently Repaired Laptops

View All Recent Repairs

Dell

Inspiron 15 5520

Fixed
Issue
Cracked LCD panel after laptop fell from desk. Screen showing lines and dead pixels on left side.
Solution
Replaced damaged 15.6-inch IPS LCD panel with genuine part. Tested display output and color calibration.

Technician's note

Used original Dell panel. Customer advised to use a laptop sleeve for protection.

Andheri West 2 Hours
  • Screen
  • Dell
  • LCD

HP

Pavilion Gaming

Fixed
Issue
Blue screen errors, random crashes during gaming.
Solution
Diagnosed RAM failure. Replaced faulty memory modules.
Borivali West 1 Hours
  • RAM
  • HP
  • Gaming

Dell

XPS 13 9340

Fixed
Issue
Laptop turns off randomly. Overheating during use.
Solution
Deep cleaned fans, replaced thermal paste. Fixed overheating issue.
Malad West 2 Hours
  • Overheating
  • Dell
  • Thermal

MacBook

Pro M3 14-inch

Fixed
Issue
Screen shows vertical lines, external display works fine.
Solution
Replaced LCD panel and display cable. Updated display drivers.
Virar West 3 Hours
  • Screen
  • MacBook
  • Display

Dell

Latitude 5430

Fixed
Issue
Battery draining from 100% to 0% in 45 minutes. Dell diagnostics showing battery wear 85%.
Solution
Replaced battery with genuine Dell cell. Calibrated battery controller. Restored to 7+ hours backup.

Technician's note

Corporate laptop with heavy daily use. Battery had exceeded 800 charge cycles.

Borivali West 45 Minutes
  • Battery
  • Dell
  • Corporate

Acer

Aspire 5 A515

Fixed
Issue
Laptop extremely slow with original 1TB HDD. Boot time over 3 minutes.
Solution
Upgraded to 512GB NVMe SSD. Cloned all data. Installed fresh Windows 11 with drivers. Boot time reduced to 8 seconds.

Technician's note

HDD was healthy — kept as secondary storage. Massive performance improvement.

Dadar West 2 Hours
  • SSD
  • Acer
  • Upgrade

FAQ

FAQs — MSI Laptop Black Screen in Worli

Everything you need to know before booking your inspection

10 questions answered

Common causes of MSI Laptop Black Screen include physical impact, wear and tear, manufacturing defects, water damage, overheating, or software conflicts. Xigox technicians perform a thorough diagnosis to identify the root cause and fix it permanently rather than applying a temporary patch. We've been serving Mumbai City district for over 15 years.
Every repair at Xigox — including MSI Laptop Black Screen fixes — is covered by a 90-day warranty. If the same problem recurs within 90 days, we repair it free of charge. Our warranty is provided in writing and applies to all repairs across Worli and Mumbai MMR. Customers across Worli (400018) enjoy priority same-day scheduling.
The cost to fix MSI Laptop Black Screen in Worli varies by laptop model and severity. Xigox charges ₹350 for inspection — refunded if you proceed with the repair. A transparent written quote before any work begins. You're never charged until you approve the repair — no hidden fees, ever. Our service covers the full 400018 postal area in Worli.
Xigox repairs MSI Laptop Black Screen on Apple, Dell, HP, Lenovo, Asus, Acer, MSI, Microsoft, Samsung and Toshiba, and more. Our engineers are trained on brand-specific procedures and we stock genuine-grade parts for the most common models, so most repairs in Worli are completed the same day. We've been serving Mumbai City district for over 15 years.
It depends on the age and value of the laptop. As a rule, if the repair costs less than a third of a comparable replacement and the rest of the hardware is healthy, repairing is worth it. After the inspection we tell you the honest repair cost and what a replacement would run, so the comparison is yours to make — we do not push a repair that is not worth doing. Customers near Annie Besant Road in Worli get our fastest response times.
No. For any laptop that still powers on we take a full backup before touching the hardware, and for units that do not, we attempt recovery before repair. Your data is never accessed beyond what the repair requires, and nothing is copied off-site. Free pickup also available in Prabhadevi, Shivaji Park, Elphinstone Road and surrounding areas.
For part replacements our technician works at your address in Worli. MSI Laptop Black Screen that traces back to the board needs microscope and hot-air rework, so that job comes to the lab — with free pickup and drop either way. We tell you which category yours is before you commit. Free pickup also available in Prabhadevi, Shivaji Park, Elphinstone Road and surrounding areas.
You bring it straight back. The same fault inside 90 days is covered under warranty — no second inspection fee, no diagnostic charge, no argument. The cover is there in writing so you do not have to just take our word for it. We've been serving Mumbai City district for over 15 years.
We use OEM or OEM-grade components and tell you which one your quote covers before work starts. We do not fit unbranded aftermarket parts or recycled pulls sold as new — part quality is the single biggest factor in whether a laptop repair lasts, so it is not somewhere we cut cost. We also serve Prabhadevi, Shivaji Park, Elphinstone Road, so you can recommend us to neighbours too.
That is what the ₹350 inspection is for. Symptoms overlap constantly — the same visible behaviour can come from three different components. We test rather than guess, then show you what we found before quoting. If the actual fault turns out to be something cheaper, the quote reflects that. Our service covers the full 400018 postal area in Worli.

Still have questions?

Send us your question on WhatsApp or call — a technician will answer.

MSI Laptop Repair in Worli — Xigox

If you are looking for MSI Laptop repair in Worli that is not a brand service centre, this is it. Xigox has run an independent MSI bench since 2011, and our technicians work on MSI boards and firmware every day rather than treating them as an occasional job. More than 1,00,000 repairs and a 4.9-star average rating sit behind that.

Every MSI component we fit is OEM-grade and batch-tested before it goes into your Laptop — no aftermarket substitutes, no recycled pulls sold as new. You see the part cost and the labour cost separately on the estimate before we start, and the ₹350 inspection comes off the bill if you go ahead.

We actively serve the entire 400018 postal area within Mumbai City district, ensuring same-day response for every repair request. ₹350 inspection fee (refunded if you proceed with repair). Located near Annie Besant Road, our service coverage extends across Worli and all surrounding localities. In addition to Worli, we also provide doorstep repairs and free pickup for lab work for customers in Prabhadevi, Shivaji Park, Elphinstone Road and other nearby areas.

Doorstep part replacement (battery, keyboard, screen, SSD, RAM) is available across Worli. For chip-level and motherboard repairs, we provide free pickup and drop — confirming within 15 minutes of your booking. Most common faults are resolved same-day. For complex repairs, we provide a realistic timeline and keep you updated throughout.

Every MSI repair at Xigox is covered by a 90-day warranty on all parts and labour. If the same fault recurs within the warranty period, we fix it at no charge. Our after-repair WhatsApp support means we are always available to answer questions about your MSI Laptop.

Service Hours

Monday – Sunday · 9 AM – 9 PM

Open on all public holidays

Service Area

Worli & surrounding Mumbai areas

Doorstep repairs + free pickup for lab work

Contact Us

+91 74997 61196

info@xigox.com

Our Guarantee

90-day warranty on all repairs

Free re-repair if same fault recurs

Product lines

MSI Series We Cover for Laptop Black Screen repair in Worli

MSI does not build one laptop — it builds 9 separate series, and Laptop Black Screen repair is a different job on each. Xigox services Creator, GF, Katana and MAG and the rest of the MSI range. We regularly take in Creator, GF, Katana and MAG, along with MEG, Modern, Prestige and Raider units for Laptop Black Screen repair in Worli. Specific MSI models on our current service list include MSI GF63 Thin, MSI Katana 15 and MSI Raider GE78 HX. If your MSI model is not listed, it is almost certainly still covered — send us the model number on the base sticker and we will confirm parts availability before you book.

  • Creator
  • GF
  • Katana
  • MAG
  • MEG
  • Modern
  • Prestige
  • Raider
  • Stealth

MSI Raider

The MSI Raider GE78 HX is part of MSI's Raider line — MSI's flagship high-performance gaming laptops, with the strongest available GPU configurations, high-refresh displays, and MSI's most aggressive cooling.

MSI Raider GE78 HX

  • MSI Raider GE76
  • MSI Raider GE77
  • MSI Raider GE78 HX
  • MSI Raider GE68 HX

MSI GF

The MSI GF63 Thin (GF-series) is part of MSI's entry-level gaming laptop range — a budget-friendly path into dedicated-GPU gaming, thinner and lighter than MSI's higher-tier gaming lines.

MSI GF63 Thin

MSI Katana

The MSI Katana 15 is part of MSI's Katana line — mid-tier gaming laptops offering a dedicated GPU and high-refresh display at a more accessible price than MSI's flagship Raider/Titan lines.

Worth knowing for this repair: High-refresh display on most configurations.

MSI Katana 15

  • MSI Katana 15
  • MSI Katana 17
  • MSI Katana GF66
  • MSI Katana GF76

Laptop Black Screen Repair for All MSI Models in Worli

Select your specific MSI model for a more targeted diagnosis page

Laptop Black Screen Repair for Other Brands in Worli

We fix Laptop Black Screen across all major laptop and computer brands with the same quality and warranty

Areas, Roads & Landmarks We Cover in Worli

Free pickup & drop across all these neighbourhoods

Localities & neighbourhoods

  • Worli Naka
  • Worli Village
  • Worli Koliwada
  • Worli Dairy
  • Century Bazaar
  • Prabhadevi

Roads & highways

  • Worli Sea Face
  • Annie Besant Road

Landmarks & famous places

  • Bandra Worli Sea Link
  • Nehru Centre
  • Worli Fort

MSI Laptop Black Screen Repair — All Locations

Explore more services

More Repair & Tech Services Near Worli

Same technicians · Free pickup · 90-day warranty across all services.

₹350 Inspection (refunded if you proceed with repair) · 1,00,000+ Repairs · 4.9 ★ · 90-Day Warranty

Fix Your MSI Device's
Laptop Black Screen Today

₹350 Inspection (refunded if you proceed with repair) · Expert repair for Laptop Black Screen · 90-day warranty

Serving Worli and all of Mumbai MMR · Open 9 AM – 9 PM daily

Comparison

Xigox vs Other MSI Laptop Black Screen Shops in Worli

What you get with Xigox in Worli, side by side.

FeatureXigoxOther shops
Experienced Technicians Trained & VerifiedVaries; ask who will work on the device
Genuine / OEM Parts OEM-Quality PartsVaries; ask which part will be fitted
90-Day Warranty Written CertificateVaries; ask for the warranty in writing
Diagnosis / Inspection ₹350, credited to the repairVaries; ask what the diagnosis costs
Same-Day Turnaround Worli — Most RepairsVaries; ask for a time in writing
Free Doorstep Pickup Worli — FreeVaries; ask whether pickup is free
Transparent Pricing Written Quote FirstVaries; ask for a written quote first
Live WhatsApp Updates Real-time Repair StatusVaries; ask how you will get updates

Xigox charges ₹350 for inspection — credited to your repair cost if you go ahead.

MSI Laptop Black Screen Repair in Worli — Professional, Reliable, and Affordable

Tired of middlemen? Work with the actual repair team — Xigox. Grey-market display panels cause new faults within weeks — display issues that weren't there before. Xigox Worli uses display panels matched to your MSI's exact specification: factory-spec brightness, colour, and touch sensitivity — with a warranty that means something. For MSI Laptop Black Screen Repair in Worli specifically, Xigox follows this exact process from start to finish — free pickup, transparent written quote, genuine-grade parts, and a 90-day warranty on the completed MSI Laptop Black Screen Repair.

Transparent Inspection in Worli

Uncertain about the issue with your MSI? Prior to starting any repair, Xigox performs a thorough diagnostic check. The ₹350 inspection fee, it is 100% refunded if you proceed with the repair. Our technicians in Worli will show you the broken part in plain English so you can make an informed decision.

How the MSI Laptop Black Screen Repair Process in Worli

Getting your MSI fixed in Worli is designed to be hassle-free. First, message us at +91 74997 61196 sharing your issue. Then, our free pickup technician arrives at your Worli address within the same day. Our engineers then perform a detailed diagnostic (₹350, refunded if you proceed). After your approval, this job is completed with OEM-grade parts — and your MSI is delivered back to you. Total turnaround: 24-48 hours.

Top-Rated MSI Laptop Black Screen Repair in Worli

There are many repair shops in Worli, however, Xigox stands out for this repair. We believe in total honesty. Each repair begins with a thorough diagnostic inspection for ₹350, which is fully refunded if you proceed. No surprise fees — only expert repair in Worli.

Office MSI Laptop Black Screen Repair in Worli

Businesses across Worli trust our job to maintain productivity. We offer AMC agreements, priority SLA turnaround, and a single point of contact. From a small team or an entire floor, Xigox manages this job for your Worli workspace with GST invoices and complete service reports.

OS Recovery with MSI Laptop Black Screen Repair in Worli

Not all this repair issues are hardware-related. Our team are equally skilled at diagnosing and fixing OS issues as hardware repair. Whether your MSI has: a corrupted Windows or macOS installation, a malware infection, blue screens, or boot sector errors. We reinstall and configure macOS cleanly and quickly, preserving your data wherever possible.

Trusted by Worli for MSI Laptop Black Screen Repair

Numbers speak louder. Xigox maintains a 4.9-star rating from 9,727+ customer reviews from customers across Mumbai MMR. Common praise includes: honest pricing, fast turnaround, and genuine parts. What Worli customers value most: "Excellent this job, done same day with genuine parts." Become part of the growing community of satisfied Xigox customers in Worli.

Multi-Point Inspection after MSI Laptop Black Screen Repair

Fixing the immediate problem is only half the job at Xigox. Prior to delivery in Worli, it must pass a strict multi-point quality check. Our team ensures that the repair was 100% successful, checking port functionality. This level of testing is the reason for our 4.9★ rating across Worli.

Insurance & Out-of-Warranty MSI Laptop Black Screen Repair Options

A common question is whether an extended warranty applies to this job. Xigox supports insurance claims and can provide the itemised bill your insurer needs — including parts cost, labour cost, and fault description. When manufacturer warranty has expired, third-party job is typically usually cheaper compared to the official service centre.

Warranty & After-Service for MSI Laptop Black Screen Repair

Every repair completed by Xigox in Worli comes with a documented three-month warranty on parts and labour. That means, if anything goes wrong within 3 months, we fix it at zero extra cost. You get a written warranty card every single time, so the terms are clear.

Fixed-Quote Policy for MSI Laptop Black Screen Repair

One of the most common complaints about repair shops in Worli is hidden charges after the job is done. Xigox operates differently. Prior to touching your MSI, our technician sends a WhatsApp quote covering parts and labour. There is zero ambiguity — the decision is entirely yours. The ₹350 diagnostic is credited 100% when you approve the repair.

Don't let a broken MSI slow you down in Worli. Call Xigox today for your MSI Laptop Black Screen Repair. Backed by our written parts and labour warranty and upfront pricing, you have nothing to lose. Book your doorstep technician in Worli online now.

Service area

MSI Laptop Black Screen Repair in Worli Koliwada — Service Area & Coverage

Xigox provides msi laptop black screen repair across Worli Koliwada (PIN 400018), in the Mumbai City district of Mumbai. Our doorstep pickup and on-site service cover the entire Worli Koliwada area and the neighbourhoods around it.

Localities we cover in Worli Koliwada: Worli Naka, Worli Village, Worli Dairy, Century Bazaar, Prabhadevi. Wherever you are in Worli Koliwada, we can collect your device from your door and bring it back after the repair.

Our technicians regularly serve homes, societies and offices around Bandra Worli Sea Link, Nehru Centre and Worli Fort, and along Worli Sea Face and Annie Besant Road. If you're near any of these landmarks, same-day pickup for msi laptop black screen repair is almost always available.

MSI Laptop Black Screen Repair near Worli Koliwada

We also serve these nearby areas — tap your locality for local msi laptop black screen repair:

MSI Laptop Black Screen Repair price in Worli — know it before you book

  1. 1Pick your device & issue
  2. 2See the real price range
  3. 3Free doorstep pickup in Worli

4.9 from 9,727 customer reviews across all repairs · upfront pricing · 90-day warranty

Before you book: have your device model and a quick description of the issue ready — it speeds up your quote.

Nearest pickup point: Worli, Dadar

~0.7 km from Worli. With free doorstep pickup you don't need to travel — this is our nearest pickup point.

Book a repair

MSI Laptop Black Screen Repair — Book Now

Free pickup · Genuine parts · 90-day warranty

Booking received

We'll call you within 1 hour to confirm your appointment and arrange doorstep pickup.

Inspection fee: ₹350

  • Credited to your total repair cost if you go ahead.
  • Still applies if the device can't be repaired or you decline the repair.

+91

Device type *

Inspection fee: ₹350

  • If you go ahead with the repair, the ₹350 is credited to your total repair cost.
  • If the device can't be repaired or you decide not to continue, the ₹350 inspection fee still applies.

Your details are used only to arrange this repair. By submitting, you agree to our Privacy Policy.

Call WhatsApp