Mobile App Development
Native (Swift, Kotlin) or React Native apps for iOS and Android — from the scope conversation to store release, in an 6–16 week planning band.
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Mobile app development turns an idea into a product that is published on the App Store and Google Play, measured and maintained. GG Tech's Mobile App Development service does that with a written scope, a screen and flow map, a reasoned technology choice (Swift/Kotlin or React Native), a clickable prototype, two-week sprints, device testing, store release and post-launch maintenance. Scope, not technology, sets the timeline; our planning band is 6–16 weeks and the price comes as a written proposal once the scope is clear.
| Typical team | 1 PM (part-time) + 2 mobile developers + 1 designer |
|---|---|
| Calendar band | 6–16 weeks |
| Phase split | 15% discovery & design · 55% development · 20% testing & hardening · 10% release |
What grows the budget
- Custom backend
- Offline-first requirements
- Dual-platform native builds
- Device hardware integrations
- App store review cycles
Signs of underbudgeting
- No budgeted test phase
- A single developer
- Backend deferred to later
These are GG Tech Teknoloji planning bands, not a quote; starting prices are on each service page. Every project is different, so the bands are deliberately wide; they assume a senior, focused team and typical scope, and your project is estimated individually.
How do we work?
- 1
Scope and flow map
What it is for, who it is for and what is not in the first release, written down; every screen, button and error state listed. That list is the number that sets the timeline.
- 2
Technology decision
Native (Swift, Kotlin) or React Native — decided on device hardware, performance, team and budget, with the reasoning written down. We do not propose the same tool for every project.
- 3
Design and clickable prototype
The flow is tried on a phone before development starts; the cheapest fixes happen here.
- 4
Two-week sprints
Every sprint ends with a working build on TestFlight and Google Play internal testing; progress is an app on a device, not a screenshot.
- 5
Testing, acceptance and store release
Device variety, slow networks, empty states and notification permissions are tested; the acceptance criteria are the scope document. We run App Review and the Google Play closed-testing process.
- 6
Measurement and maintenance
Crash reports, analytics events and store policy changes are watched; a release plan keeps the app compatible with new OS versions.
What do we deliver?
Mobile App Development
Proof from production
6
citizen apps on one system, mobile app included
22
weeks to all six apps live
2
of our own mobile apps on the App Store (DreamLens, Movo)
Çekmeköy Municipality figures read from the code base and commit history (September 2026); DreamLens and Movo live on the App Store (September 2026).
Read the case study: Çekmeköy BelediyesiRelated services
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MVP Development
A first release that tests one assumption with real users, with measurement built in from day one — scope cutting, fortnightly releases and launch, in an 6–10 week band.
App Modernization & Migration
Move legacy systems to modern architectures — better performance, lower maintenance.
IoT & Beacon Solutions
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Software Architecture & System Design
.NET backend architecture, the microservice-or-monolith decision, and a domain model that survives growth.
Database Engineering & Optimization
Schema design, index and query tuning on PostgreSQL and MS SQL Server — measured before and after.
System Integration & Central Platforms
Middleware and central systems that feed several applications from a single source of truth, at public-sector scale.
Work we delivered with this service
Related reading
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Let's talk about your project, we reply the same business day.
A 30-minute intro call: scope, timeline band and the right team.
Clutch 5.0 · team of 20 · Çekmeköy Municipality, NSC Soft, UKX
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