Sufiyan Tahir

Stuck.

Most apps don't get stuck on the screens.

They get stuck at the last 10 percent.

Sufiyan Tahir · React Native & Expo developer · Karachi, Pakistan

01TestFlight crashesfailed
02Expo builds that failfailed
03Subscriptions that breakfailed
04Auth that works locally and dies in productionfailed
05Store releases that never go outwaiting
View my work How I work
  1. Broken
  2. Diagnosed
  3. Fixed
  4. Shipped

Broken.

A build that passes locally and dies on TestFlight. The screens are done. The release isn't.

Build issue
example build 1.4.2 (87)exit code 1
12:04:52eas build --platform iosok
12:05:31upload to TestFlightok
12:06:02processing build 1.4.2 (87)ok
12:09:44launch on devicefailed
12:09:44crash on launch, release build onlyfailed
12:09:45works in the development buildok
12:41:10fix: read the entitlement after purchases sync (1 file, 3 lines)ok
6 lines, 2 failed90%

an example build log, not a client’s

What I can help with.

From adding a feature to getting a release ready, I work on the app and the services behind it.

React Native development

New features and continued development for React Native and Expo apps, including projects with an existing codebase.

Response: app takeover

Build fixes and app releases

Expo and EAS build issues, TestFlight crashes, iOS configuration and App Store submission work.

Galbi: iOS release

Subscriptions and payments

RevenueCat subscriptions, Stripe integrations and payment flows that need to stay consistent across iOS and Android.

Rivr BudgetFlow: subscriptions

Backend and integrations

Supabase, Firebase and Node.js work behind the screens: APIs, authentication, real-time data and the flows that connect them.

Barakah: real-time sync

Apps that got out the door.

From product takeovers to release fixes: 9 projects, with the stack and my role in each.

[ full index ]
no.projectwhat was stuckstackstatus
  1. 01ResponseA partially built app, taken forward through features, fixes and releases
    Response: app cover
    ResponseiOS and Android
    A partially built app, taken forward through features, fixes and releasesReact Native, ExpoShipped
  2. 02Rivr BudgetFlowSubscription status drifting across iOS and Android
    Rivr BudgetFlow: app cover
    Rivr BudgetFlowiOS and Android
    Subscription status drifting across iOS and AndroidReact Native, RevenueCatShipped
  3. 03Barakah AppShared boards, real-time sync and per-board chat on Firebase
    Barakah App: app cover
    Barakah AppiOS and Android
    Shared boards, real-time sync and per-board chat on FirebaseReact Native, FirebaseShipped
  4. 04GalbiTestFlight and App Store release, bundle settings, privacy details
    Galbi: app cover
    GalbiiOS
    TestFlight and App Store release, bundle settings, privacy detailsReact Native, ExpoShipped
  5. 05Salah GuideAudio playback crashes and large audio handling
    Salah Guide: app cover
    Salah GuideiOS and Android
    Audio playback crashes and large audio handlingReact Native, ExpoShipped
  6. 06Taiyari NEET KiiOS study app with daily goals and revision, store release
    Taiyari NEET Ki: app cover
    Taiyari NEET KiiOS
    iOS study app with daily goals and revision, store releaseReact Native, iOSShipped
  7. 07The Airy EditA TestFlight issue standing between the app and the App Store
    The Airy Edit: app cover
    The Airy EditiOS
    A TestFlight issue standing between the app and the App StoreTestFlight, App StoreShipped
  8. 08Our GardenA broken build, taken to production-ready
    Our Garden: app cover
    Our GardeniOS and Android
    A broken build, taken to production-readyGemini 2.5 Flash, Google PlayShipped
  9. 09Passport QuestIn-app purchases and the releases on both stores
    Passport Quest: app cover
    Passport QuestiOS and Android
    In-app purchases and the releases on both storesRevenueCat, App StoreShipped

Shipped, by country.

The eight countries with the most orders, out of 16, every one a real client on Fiverr named by country only. The remarks are their words. 46 orders, 4.9 overall, 43 five-star.

verified 19 Oct 2026

ClientOrdersRemarksStatus
United Kingdom9Bug freeDelayed
United Arab Emirates8Above and beyondDelayed
United States6Delivers on timeDelayed
Denmark5Every single timeDelayed
India4Excellent workDelayed
Canada3High-quality workDelayed
Pakistan2Quickly fixedDelayed
Australia1App Store and PlayDelayed
Rating
4.9
from 46 reviews
Five-star
43
of 46, none below four
Bug-fix gig
5.0
from 40 orders
Countries
16
from Karachi, every one of them
Karachi · PakistanDrag to explore
Client voices / 01 of 16

Australia5.0 stars6 daysMobile App Bug Fixes

“Great work, really helpful, on time skilled, got my updated app into the App Store and Play Store, sometimes I need help in the tech area that just goes over my head”
  • United Kingdom9 orders · 5.0 stars
  • United Arab Emirates8 orders · 5.0 stars
  • United States6 orders · 5.0 stars
  • Denmark5 orders · 5.0 stars
  • India4 orders · 4.7 stars
  • Canada3 orders · 5.0 stars
  • Pakistan2 orders · 5.0 stars
  • Australia1 order · 5.0 stars
  • Dominican Republic1 order · 5.0 stars
  • France1 order · 5.0 stars
  • Ghana1 order · 5.0 stars
  • Ireland1 order · 5.0 stars
  • Italy1 order · 5.0 stars
  • Nigeria1 order · 4.3 stars
  • Serbia1 order · 5.0 stars
  • Switzerland1 order · 4.3 stars

Contact

Let's talk.

Tell me what you're building, what's getting in the way and where you need help.

sufiyan240107@gmail.comFiverr, 4.9 from 46 reviewsUpwork, identity verifiedverified 19 Oct 2026. Usually replies within an hour.

Optional. Private links are fine, I will ask for access.