Hire a mobile app developer or an agency?
At an agency, a sales rep takes the project, a project manager passes it on, and the developer never meets you; every change goes through a chain. With a freelance mobile app developer, you explain your needs directly to the person writing the code, questions are resolved the same day, and the cost of agency layers disappears.
Which platforms do I build apps for?
- iOS: native iPhone and iPad apps with Swift and SwiftUI — iOS developer
- Android: native apps and industrial handheld terminals with Kotlin — Android app development
- PWA: web apps added to the home screen, no app store required
- Backend: PHP/Laravel API, MySQL, admin panel and notification infrastructure
Examples from my live mobile projects
The Ezan Vakti app, live on the App Store; Kassa, a POS and inventory app that scans barcodes with the iPhone camera; an Android stock counting app running on Chainway handheld terminals; a taxi platform made up of passenger, driver and fleet apps; a QR-based guard tour control app; and Inspectra, which performs quality control with the camera. Each one is running in the field with real users.
Questions to ask when choosing a mobile app developer
- Do you have an app live in the store that I can download and try?
- Do you also build the backend and admin panel?
- Native or PWA, and why?
- Whose name will the source code and store accounts be in?
- Who will handle updates after launch?
What I offer
Direct communication
You talk to the person who writes the code.
iOS + Android
Native Swift and Kotlin, PWA when needed.
Backend included
API, database and admin panel.
Store publishing
App Store and Google Play processes.
Field experience
Handheld terminal, fleet and field apps.
Long-term support
Compatibility with new versions and further development.
Agency, off-the-shelf package or freelance expert?
See at a glance which model delivers the most value for the same budget.
| Criteria | Software Agency | Off-the-shelf / SaaS | Hakan Sevimoğlu |
|---|---|---|---|
| Point of contact | Sales + project manager + team | Support line | The expert who writes the code |
| Cost structure | Office, sales and management layers are priced in | Per-user / monthly license, forever | Development work only |
| Fit to your business | Scope changes need extra contracts | ✕ You adapt to the package | ✓ Software adapts to you |
| Response time | Tickets, meetings, approval chains | Queued | ✓ Direct WhatsApp / phone |
| Technical depth | Depends on who is on the team | Limited customization | ✓ 18 years, every layer from mobile to IoT |
| Maintenance | Knowledge is lost when the team changes | Data risk if the product shuts down | ✓ Supported by the person who built it |
Technologies I use
Example projects
A selection of live projects serving real users.
Ezan Vakti – Gümüşpala Hizmet (iOS)
Prayer times, Ramadan calendar, qibla and worship tracking; live on the App Store.
View
Kassa — iPhone POS & Inventory App
Barcode sales, stock, customer credit and profit reports for grocery stores and kiosks; works offline.
View
Taxi, Fleet & POS Platform
Passenger, driver and fleet apps with live dispatch and POS.
ViewGuard Tour Control System
QR-based security patrol tracking PWA.
ViewHow we work
Free intro call
We clarify needs, existing systems and goals together.
Quote & roadmap
Scope, technology, timeline and budget within 24 hours.
Staged development
Weekly demos and a live test environment.
Launch & support
Go-live, training and ongoing maintenance.
Free pre-analysisThe first meeting and roadmap are completely free, with no obligation.
Staged delivery and approvalYou review each module on a test environment before we move on.
Written scope and rightsScope, delivery and source code rights are defined in the contract.
Frequently asked questions
What does a mobile app developer do?
They build iOS and Android apps, set up the app's API and database, and manage App Store and Google Play publishing and subsequent updates.
Do you build both iOS and Android?
Yes. I develop natively with Swift/SwiftUI for iOS and Kotlin for Android; for suitable projects I recommend a PWA.
Is working with a freelance developer risky?
What reduces the risk is live projects, a written scope, phased delivery and source code that belongs to you. These four conditions are secured by contract.
Do you also build the app's admin panel?
Yes. The web panel for managing content, users, orders and reports is included in the project.
How do we get started?
Send your idea via WhatsApp or the quote form; you receive a free preliminary analysis and a written quote within 24 hours.