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I will debug optimize your ios swift app for speed and stability
Ahmad Ali Sabir
About this gig
Is your iOS app crashing, lagging, or draining battery too fast?
I fix what's broken in your Swift app and make it run the way it should
fast, stable, and crash-free. I trace root causes instead of patching
symptoms, so issues don't come back.
What I handle:
- Crash & freeze fixes (memory leaks, retain cycles, threading issues)
- Performance tuning (slow launches, lag, high memory/CPU usage)
- UI bugs (Auto Layout, state issues in UIKit & SwiftUI)
- API & networking issues (failed calls, decoding errors, timeouts)
- Core Data / local storage bugs
- App Store rejection fixes (crash logs, performance flags)
How I work:
Send me your crash logs, repro steps, or a quick screen recording so I
can scope the fix accurately. I test on real scenarios, not just "it
compiles."
Not sure which package fits your issue? Message me before ordering and
I'll suggest the right one for you.
Get to know Ahmad Ali Sabir
Ahmad Ali Sabir
Native iOS Developer, Swift and UIKit, 5 Apps on the App Store
- FromPakistan
- Member sinceJun 2026
- Avg. response time1 hour
Languages
English
Native iOS & macOS developer, 2 years experience
building App Store-ready apps in Swift, UIKit &
SwiftUI — 100% programmatic, no Storyboard.
Apps shipped: AI Note Taker, PDF Editor, AI Video
Maker, Video to MP3, AI Chatbot, AI Humanizer.
Skills: Swift, UIKit, SwiftUI, Firebase, REST API,
MVVM, CoreML, OpenAI API, App Store submission.
CS student staying current with the latest Apple
frameworks and AI advancements.
Have an app idea? I will build it.
My Portfolio
FAQ
What information do you need before starting?
Crash logs, repro steps, or a short screen recording of the bug.
Do you need full access to my codebase?
Yes, I'll need the Xcode project or repo access. NDA available on request.
Can you fix App Store rejection issues?
Yes — I fix the flagged crash or performance issue and prep your build for resubmission.
Does this cover UIKit and AppKit?
Yes, both — including apps that mix the two.
Not sure which package to pick?
Message me with your issue and I'll recommend the right one.
