iOS and Android Mobile App Development
Kalynda Tech develops mobile applications for iOS and Android and publishes them to the stores itself. Apps are built in Flutter from a single codebase, with native SwiftUI or Kotlin where a platform demands it. The company has eight of its own apps live on Google Play and five on the App Store — they serve both as references and as proof of the infrastructure it sells.
One codebase, two stores
Apps are built in Flutter, so the same code runs on iPhone and Android and there is no need to fund two separate teams. Where platform-specific behaviour matters — Apple Watch complications, background location services, home-screen widgets — native Swift and Kotlin modules are written alongside it.
Push notifications, in-app purchases, offline behaviour, localisation and dark mode are treated as baseline requirements rather than later additions.
Store submission is part of the job
On most app projects the hard part is not the code but App Store and Google Play review. Kalynda has been through it repeatedly: privacy nutrition labels, mandatory data-deletion pages, health and location permission justifications, Apple guideline 2.1 and 4.1 rejections, and Play target-API deadlines.
Rescuing a rejected app is offered on its own: the existing codebase is reviewed whatever it was written in, and the rejection reason is closed out.
Backend included, end to end
A mobile app rarely stands alone. In Kalynda projects the backend APIs run on Cloudflare Workers, data lives in D1, files in R2, and push delivery for both Firebase Cloud Messaging and the Apple Push Notification service is handled by one central service.
That means the app can be kept alive after launch through a single point of contact.
What you get
- Single Flutter codebase targeting iOS and Android
- Native Swift / SwiftUI and Kotlin modules where required
- Push notification infrastructure (FCM + APNs)
- In-app purchase and subscription integration
- Localised interface and dark mode
- App Store Connect and Google Play Console submission
- Store artwork, listing copy and privacy declarations
Technologies used
Frequently asked questions
How long does mobile app development take?
A focused app takes 4–8 weeks; transaction-heavy apps such as booking or mapping products take 3–6 months. Store review time sits outside that schedule and can range from a few days to a few weeks for a first Apple submission.
The App Store rejected my app — can you fix it?
Yes. Closing out a rejection on an existing app is offered as a standalone service. The codebase is reviewed regardless of the technology it was written in, the cited guideline is addressed and the resubmission is managed.
Do you ship to both iOS and Android?
Both stores are the default. Because the app compiles from one Flutter codebase, the second platform does not cost as much as a second project.
Do you provide maintenance after launch?
Yes. OS version migrations, Google Play target-API deadlines and Apple SDK updates are covered by a maintenance subscription.
Other services
Corporate websites, e-commerce and custom web applications.
Smartwatch apps for Apple Watch and Wear OS.
Drone promo video, aerial photography and video production.
Real-time AI object detection on live video streams.
Aviation software for pilots, airports and flight operations.
Custom booking platforms for transfers, tours and stays.
Let's talk about your project
Based in Dalaman, Türkiye — working across Türkiye and remotely worldwide.