Skip to main content
Sony VAIO · Pro · Nilemore

Sony VAIO Pro
Boot Loop Fix
in Nilemore

Expert repair for your Sony VAIO Pro in Nilemore. Free doorstep pickup, OEM-quality parts & 90-day warranty.

✓ Free Doorstep Pickup ✓ Same-Day Repair ✓ 90-Day Warranty ✓ ISO 9001 Certified

Open every day, 9 AM – 9 PM

Opened laptop on an anti-static mat with SSDs, a cleaning brush and pry tools laid out Top-down view of a technician servicing a laptop beside an SSD and a cleaning brush
Xigox technicians at the repair bench
Tejas Chudasama, Xigox Founder Janak Chudasama, Xigox CTO

Run by Tejas & Janak Chudasama since 2011

Xigox is a family-run, ISO 9001:2015-certified repair business, not a marketplace listing or a franchise. Every repair is backed by a written 90-day warranty and billed against GSTIN 27AJXPC8441R1Z7. Read our story

Repair Pricing

Sony VAIO Pro Boot Loop Fix — Price List

Transparent pricing · ₹350 inspection (refunded if you proceed with repair) · No hidden charges · Pay only after approval

Issue / ComponentRepair PriceWarranty
Boot Record Repair ₹549 - ₹1,199 90 Days
Advanced Boot Fix ₹1,199 - ₹2,099 90 Days
OS Recovery + Boot Fix ₹1,699 - ₹3,199 90 Days
Hardware Boot Repair ₹2,599 - ₹4,799 90 Days

Prices may vary by exact condition. Final quote given after ₹350 inspection (refunded if you proceed with repair).

Get Exact Quote

Why Us?

Why Choose Xigox for Sony VAIO Boot Loop Fix in Nilemore?

With 1,00,190+ successful repairs and a 4.9-star rating, Xigox is an independent Sony VAIO repair specialist serving Nilemore. Serving all addresses in the 401209 postal zone.

Experienced Technicians

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

Genuine & OEM-Grade Parts

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

90-Day Parts Warranty

Every repair backed by a written 90-day warranty. Same fault recurs? We fix it free of charge.

Same-Day Turnaround

Most Sony VAIO Boot Loop Fix jobs in Nilemore are completed same-day. Urgent service available for critical cases.

Full Transparency

We quote before starting work. No hidden fees. You pay exactly what you were quoted.

Lifetime Post-Repair Support

Free WhatsApp support for any questions about your Sony VAIO Pro Boot Loop Fix after repair — always.

Repairs Completed
1,00,190+
Since 2011
Average Rating
4.9 ★
9,605+ reviews
Repair Warranty
90 Days
Parts & labour
Avg Response
30 Min
For common issues
Pickup & Drop
Free
₹350 inspection fee
Est. Since
2011
15+ yrs in Palghar

Who repairs your device

Repaired in-house by Xigox technicians

Your Sony VAIO Pro 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 Sony VAIO Pro Boot Loop Fix Works

From booking to delivery — here's exactly what happens at every step

Book Pickup

Call or WhatsApp +91 74997 61196. Tell us your Sony VAIO Pro issue in Nilemore and schedule a free doorstep pickup.

₹350 Inspection (refunded if you proceed with repair)

Our experienced technician inspects your Sony VAIO Pro and provides a transparent written quote for Boot Loop Fix.

Expert Repair

Once approved, we perform Boot Loop Fix using OEM-quality parts. Most repairs are completed same-day.

Quality Check

Every Sony VAIO Pro passes a multi-point QA test before delivery. Your 90-day warranty starts from this moment.

Free Delivery

We deliver your repaired Sony VAIO Pro back to your Nilemore address. Completely free, same day.

After-Service Care

Post-repair support via WhatsApp. If the issue recurs within 90 days, we fix it at zero cost.

Repair examples

Recently Repaired Laptops

View All Recent Repairs

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

HP

Pavilion x360

Fixed
Issue
Right hinge broken, screen wobbling. Back panel cracked near hinge mount.
Solution
Replaced both hinges with reinforced metal hinges. Repaired back panel crack with epoxy bonding.

Technician's note

Common issue in x360 convertible models. Both hinges replaced for balanced tension.

Goregaon West 2 Hours
  • Hinge
  • HP
  • Convertible

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

Lenovo

ThinkPad E14

Fixed
Issue
Multiple keys not responding after tea spill. Keyboard backlight also stopped working.
Solution
Replaced full keyboard module with backlit variant. Cleaned internal membrane and tested all keys.

Technician's note

Tea had corroded the membrane. Internal components were safe from further damage.

Thane West 1.5 Hours
  • Keyboard
  • Lenovo
  • Spill

HP

Pavilion 14

Fixed
Issue
Battery swollen causing trackpad to push up. Laptop only running 20 minutes on battery.
Solution
Safely removed swollen battery, replaced with BIS-certified cell. Battery health restored to 100%.

Technician's note

Battery was 3 years old, exceeded cycle count. Recommended charging between 20-80%.

Bandra West 1 Hour
  • Battery
  • HP
  • Swollen

ASUS

VivoBook 15

Fixed
Issue
Laptop dead — no power, no charging LED. Other repair shops quoted motherboard replacement.
Solution
Diagnosed failed power IC using multimeter. Replaced IC at chip level. Laptop boots and charges normally.

Technician's note

Power surge damaged the charging IC. Recommended using a surge protector.

Powai 4 Hours
  • Motherboard
  • ASUS
  • Chip-Level

Comparison

Xigox vs Other Sony VAIO Pro Shops in Nilemore

What you get with Xigox in Nilemore, 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 Nilemore — Most RepairsVaries; ask for a time in writing
Free Doorstep Pickup Nilemore — 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.

Customer reviews

What Customers Say About Laptop & Computer Repairs in Nilemore

4.9/5 · 12 reviews shown

See all 9,605+ reviews

Samsung Galaxy Book3 360 — Samsung Data Recovery

“Needed Samsung Data Recovery for my Samsung Galaxy Book3 360 — Xigox technicians handled it professionally with a warranty.”

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

D Devansh Gupta Borivali · 31 Jul 2026 4

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

Fujitsu laptop — Fujitsu RAM Upgrade

“Booked Fujitsu RAM Upgrade for my Fujitsu laptop online. Doorstep pickup and clear communication throughout.”

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

V Vikram Oberoi Mulund · 20 Jul 2026 5

Fujitsu laptop — Fujitsu Charging Port Repair

“Fujitsu Charging Port Repair on my Fujitsu laptop was completed same day with fair, transparent pricing.”

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

S Sanjana Rao Bandra · 1 Aug 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

Samsung Galaxy Book4 Pro — Samsung Virus Removal

“Samsung Virus Removal on my Samsung Galaxy Book4 Pro was completed same day with fair, transparent pricing.”

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

S Sanjana Rao Bandra · 17 Jul 2026 8
Page 1 / 2

← Swipe or tap dots to browse →

Customer stories

Customer Stories

What customers say about their laptop and computer repairs

“Laptop screen shattered after a fall. Xigox replaced it with an original panel — display looks brand new. Finished in 4 hours, same day. Highly recommend!”

HP Pavilion 15 eg2000

R Ravi Shankar Andheri West
“Keyboard stopped working completely — spilled juice on it. Xigox cleaned and replaced the keyboard. Professional job, data safe, warranty given. Superb!”

Lenovo IdeaPad Slim 3

M Meenakshi Nair Dadar
“Laptop was overheating and shutting down every 20 minutes. Xigox cleaned the fan, replaced thermal paste. Now it runs cool and silent. ₹499 well spent!”

ASUS VivoBook 14

S Saurabh Joshi Borivali
“Motherboard was dead — no power at all. Xigox did chip-level repair instead of replacing the whole board. Saved ₹8000. Running perfectly for 6 months now!”

Dell Inspiron 3511

P Pooja Tiwari Thane West
“Battery was swollen and trackpad stopped clicking. Xigox replaced the battery safely. MacBook performance is back to day-one speed. Expert Apple technicians!”

MacBook Air M1

A Anil Chauhan Malad
“Charging port was loose and not connecting. Xigox repaired the port in 2 hours. No data loss, 90-day warranty. Office productivity restored immediately!”

HP EliteBook 840 G8

N Nandini Kulkarni Kandivali

FAQ

FAQs — Sony VAIO Pro Boot Loop Fix in Nilemore

Everything you need to know before booking your repair

10 questions answered

Software boot repairs 1-3 hours. Hardware issues 2-6 hours depending on root cause.
The cost of Sony VAIO Pro Boot Loop Fix in Nilemore depends on your laptop or computer model and the extent of damage. Xigox charges ₹350 for inspection — refunded if you proceed with the repair — you'll receive a transparent, written quote with no hidden charges. Most standard Sony VAIO Pro Boot Loop Fix jobs start from ₹499. Call or WhatsApp +91 74997 61196 for an instant estimate. We've been serving Palghar district for over 15 years.
Most Sony VAIO Pro Boot Loop Fix jobs in Nilemore are completed the same day — usually within 2–4 hours of pickup. Complex repairs such as motherboard replacement or liquid-damage recovery may take 1–2 days. We'll give you an accurate time estimate during the inspection. Customers across Nilemore (401209) enjoy priority same-day scheduling.
Yes — Xigox provides completely free doorstep pickup and delivery for Sony VAIO Pro Boot Loop Fix across Nilemore. An experienced technician collects your laptop or computer from your home or office, completes the repair at our workshop, and returns it — often the same day. Call or WhatsApp +91 74997 61196 to book. Our service covers the full 401209 postal area in Nilemore.
Every Sony VAIO Pro Boot Loop Fix at Xigox includes a 90-day warranty on the repaired component and all parts used. If the same issue recurs within 90 days, we fix it at zero cost. This warranty applies to all Sony VAIO Pro Boot Loop Fix completed in Nilemore and across Mumbai MMR. Customers near Nalasopara East Station Area in Nilemore are covered by our free pickup.
We use OEM-quality or manufacturer-grade components for all Sony VAIO Pro Boot Loop Fix work. Genuine-grade parts ensure your laptop or computer performs exactly as designed and your 90-day repair warranty stays valid. We never use substandard aftermarket parts without your prior consent. Trusted by customers throughout Palghar — rated 4.9★ across 9,605+ reviews.
Yes. All our technicians are trained professionals with extensive hands-on experience in Sony VAIO Pro Boot Loop Fix. They receive regular technical training on the latest Laptop models and repair methodologies, ensuring consistently high-quality results. We also serve Nalasopara East, Nalasopara, Tulinj, so you can recommend us to neighbours too.
Booking is simple: WhatsApp or call +91 74997 61196, describe your laptop issue, receive a free quote, and schedule a convenient pickup time in Nilemore. We're available 9 AM–9 PM, 7 days a week — including weekends and public holidays. Customers near Nalasopara East Station Area in Nilemore are covered by our free pickup.
Yes! Xigox offers same-day Sony VAIO Pro Boot Loop Fix for most common issues in Nilemore. We pick up your laptop in the morning, repair it at our workshop, and deliver it back by evening. Same-day service applies to screen replacements, battery changes, software repairs, and more. Customers across Nilemore (401209) enjoy priority same-day scheduling.
Absolutely. Data security is our top priority. Our technicians never access personal files during Sony VAIO Pro Boot Loop Fix. We follow strict protocols to prevent data loss, and we'll always inform you before any procedure that could affect stored data. Your privacy is fully protected. Customers near Nalasopara East Station Area in Nilemore are covered by our free pickup.

Still have questions?

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

Sony VAIO Pro Repair in Nilemore — Xigox

Most Nilemore repair shops handle Sony VAIO the same way they handle every other make. We do not. Our Sony VAIO technicians are trained specifically on Sony VAIO Pro architecture — schematics, boardview files and firmware behaviour — which is why our first-time fix rate on Sony VAIO work is so much higher than a general shop's.

Parts for Sony VAIO Pro models are held in stock rather than ordered after you book, so most repairs are not waiting on a supplier. Screens, batteries, keyboards, charging boards and flex cables are all OEM-grade. You approve a written estimate first, and the ₹350 inspection is credited back against the repair.

We actively serve the entire 401209 postal area within Palghar district, ensuring same-day response for every repair request. ₹350 inspection fee (refunded if you proceed with repair). Located near Nalasopara East Station Area, our service coverage extends across Nilemore and all surrounding localities. In addition to Nilemore, we also provide doorstep repairs and free pickup for lab work for customers in Nalasopara East, Nalasopara, Tulinj and other nearby areas.

Doorstep part replacement (battery, keyboard, screen, SSD, RAM) is available across Nilemore. 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.

We back Sony VAIO work with a 90-day parts-and-labour warranty in writing, not just a verbal promise. If your Sony VAIO Pro does come back with the same fault, we cover it. You keep a direct WhatsApp line to the team that did the work.

Service Hours

Monday – Sunday · 9 AM – 9 PM

Open on all public holidays

Service Area

Nilemore & 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

Boot Loop Fix for Other Sony VAIO Models

We repair all Sony VAIO models in Nilemore

Boot Loop Fix for Other Brands in Nilemore

We repair all major brands — same service, same quality, same warranty

Areas, Roads & Landmarks We Cover in Nilemore

Free pickup & drop across all these neighbourhoods

Localities & neighbourhoods

  • Nilemore
  • Nalasopara East
  • Virar

Roads & highways

  • Nilemore Road
  • Achole Road
  • SH-43

Landmarks & famous places

  • Nilemore Village
  • Achole Temple
  • Nalasopara East Station Area

Not sure which repair you need? See all Sony VAIO Pro repairs in Nilemore

Boot Loop Fix Across Mumbai — All Locations

Explore more services

More Repair & Tech Services Near Nilemore

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

ISO 9001:2015 Certified · 1,00,190+ Repairs · 4.9 ★ Rating

Ready to Fix Your
Sony VAIO Pro Today?

₹350 inspection fee (refunded if you proceed with repair) · Same-day Boot Loop Fix · 90-day warranty

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

How it's done

How We Perform Boot Loop Fix

What our technicians do, what it requires, and how to tell you need it.

1 How It's Performed

For this specific fault, we determine first whether the system is failing before the OS even loads (pointing to hardware — RAM, drive, motherboard) or fails during Windows/macOS startup itself (pointing to a software/OS corruption cause) — this single distinction decides the entire repair path.

Typical time: 30–90 minutes

2 What This Requires

  • A clear read on exactly where in the boot sequence the failure happens (before OS load vs. during it), which changes the entire diagnostic path.
  • A backup of accessible data before attempting any boot-repair step that could risk further data loss.

3 When You Need This

  • The device powers on (fans, lights) but never reaches the OS login/desktop.
  • It's stuck on a manufacturer logo, spinning indicator, or repeated restart loop.
  • An error message about a missing or corrupted boot device/operating system appears.

The model

About the VAIO Pro

Best for: VAIO loyalists wanting the brand's premium thin-and-light line

The VAIO Pro is part of VAIO's Pro line — a premium, thin-and-light VAIO laptop series historically positioned against the ultrabook competition of its era.

Key features

  • Thin-and-light premium positioning for its generation.
  • As a niche brand, exact-match parts can take longer to source than mainstream brands.

Sony VAIO Pro Boot Loop Fix in Nilemore — Professional, Reliable, and Affordable

Skip the directories. Book direct for transparent pricing with Xigox. Seeking professional Sony VAIO Pro Boot Loop Fix in Nilemore? Look no further. At Xigox, our trained technicians deliver reliable Sony VAIO Pro Boot Loop Fix for residents and businesses in Nilemore. We understand how frustrating a broken Sony VAIO can be, so we offer same-day pickup and drop in Nilemore.

Genuine Parts for Sony VAIO Pro Boot Loop Fix

Reliability matters for this issue. Because of this, our team strictly use original-specification parts for your Sony VAIO. Instead of counterfeit components, we use trusted supply chains. This is how we help your issue stay durable, supported by our standard 90-day warranty.

Warranty & After-Service for Sony VAIO Pro Boot Loop Fix

Each repair completed by Xigox in Nilemore comes with a comprehensive 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 with every repair, so the terms are clear.

Top-Rated Sony VAIO Pro Boot Loop Fix in Nilemore

You have options in Nilemore, but Xigox is the preferred choice for this issue. Our core values include total honesty. Every issue starts with a detailed hardware check costing just ₹350, refunded if you proceed. No hidden charges — just professional issue in Nilemore.

Emergency Sony VAIO Pro Boot Loop Fix in Nilemore

Is your deadline today? Xigox offers priority the repair in Nilemore for critical situations. From an exam deadline and your Sony VAIO just crashed, our emergency service moves your Sony VAIO to the front of the line, so most repairs can be finished the same business day. Emergency the repair can be arranged including weekends in Nilemore. Just say 'priority' when calling and our team will fast-track your repair immediately.

Budget-Friendly Sony VAIO Pro Boot Loop Fix in Nilemore

Expert issue doesn't have to be expensive in Nilemore. By optimizing our repair processes, we offer savings of up to half the cost compared to official repair outlets. You get the same OEM components for your Sony VAIO, without the massive markup. Request a price estimate for this issue in Nilemore today.

Xigox Service Promise for Sony VAIO Pro Boot Loop Fix

Your repair doesn't end when the Sony VAIO is returned. Our support line is available daily via call or message. If you notice anything unusual in the post-repair period, just reach out and we dispatch a technician immediately. This promise is why Nilemore customers choose Xigox again and again.

Multi-Point Inspection after Sony VAIO Pro Boot Loop Fix

Completing the repair is just the first step at Xigox. Before your Sony VAIO is returned in Nilemore, it undergoes a strict multi-point inspection. We verify that your issue was executed flawlessly, testing thermal performance. This attention to detail is why our return rate is so low across Nilemore.

Budget-Friendly Sony VAIO Pro Boot Loop Fix for Students

Are you an educator in Nilemore? We understand a functioning Sony VAIO is essential for assignments. Every booking gets a written quote for the repair before any work starts, and we suggest the most economical fix that will last, such as a part repair instead of a full replacement. Tell us about your deadline when you book and we schedule the pickup accordingly. Don't let tech issues hurt your grades — book now for affordable repair.

After-Repair Speed Sony VAIO Pro Boot Loop Fix

After a successful this issue in Nilemore, most customers notice immediate performance improvements: quicker application loading, cooler operating temperatures, restored battery life, or a perfect display — depending on the specific repair. Xigox runs diagnostic tests before and after this issue in Nilemore to confirm the improvement.

Convenient Collection across Nilemore

Navigating traffic in Nilemore takes hours. To solve this, Xigox offers a no-hassle doorstep logistics service for the repair. Just drop your pin, and our secure courier will collect your Sony VAIO directly from you. Once the repair is finished, we safely return it in protective packaging. Enjoy total convenience without leaving your desk.

Countless satisfied customers across Mumbai, Thane and Palghar confirm our expertise. We're the go-to choice for Sony VAIO Pro Boot Loop Fix in Nilemore. Every repair comes with a written warranty, genuine parts, and full honesty. Request your quote — WhatsApp us today.

Service area

Sony VAIO Pro Boot Loop Fix in Nilemore — Service Area & Coverage

Xigox provides sony vaio pro boot loop fix across Nilemore (PIN 401209), in the Palghar district of Nalasopara. Our doorstep pickup and on-site service cover the entire Nilemore area and the neighbourhoods around it.

Localities we cover in Nilemore: Nalasopara East, Virar. Wherever you are in Nilemore, we can collect your device from your door and bring it back after the repair.

Our technicians regularly serve homes, societies and offices around Nilemore Village, Achole Temple and Nalasopara East Station Area, and along Nilemore Road, Achole Road and SH-43. If you're near any of these landmarks, same-day pickup for sony vaio pro boot loop fix is almost always available.

Sony VAIO Pro Boot Loop Fix near Nilemore

We also serve these nearby areas — tap your locality for local sony vaio pro boot loop fix:

Sony VAIO Pro Boot Loop Fix price in Nilemore — know it before you book

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

4.9 from 9,605 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.

Our head office: Virar West

~4.8 km from Nilemore. With free doorstep pickup you don't need to travel — this is where the repair is done.

Book a repair

Sony VAIO Pro Boot Loop Fix — 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