🧱 Apps I’ve Built — From VPNs to Fintech

Batuhan GÜNDAY

• 1 min read

As an iOS developer, I’ve had the chance to work on a variety of projects — from fintech tools to privacy-first VPN apps. Here's a look at some of the most impactful apps I’ve worked on.

🏦 Pokus

Company: Innova
Role: iOS Developer (Current Project)

Pokus is a large-scale financial services application, used for open banking, account integration, and transaction management.

  • Building and maintaining a large UIKit-based modular architecture
  • Handling complex navigation flows and deep linking
  • Managing Firebase Remote Config, Crashlytics, and Analytics
  • Supporting CI/CD pipelines with Fastlane and Bitrise
  • Collaborating closely with QA, product, and analytics teams

🔒 Clad VPN

Role: iOS Developer — Built from scratch
App Store Link

Clad VPN is a lightweight, privacy-first VPN application with 1,000+ daily active users.

  • Designed and developed the complete UIKit interface
  • Integrated custom in-app subscription paywalls using RevenueCat
  • Boosted subscription conversions by 60% through optimized UX
  • Managed Firebase integrations for analytics and error tracking

⛽ Meteor Mobil

Client: Meteor Petrol
Role: iOS Developer
App Store Link

Fleet management app for setting fuel limits, tracking consumption, and finding nearby gas stations.

  • Implemented vehicle-specific usage limits and route-based suggestions
  • Prioritized user experience with a clean and functional UI
  • Built reporting and data visualization modules
  • Maintained stable MVVM-based architecture

Each project has helped me grow as an iOS developer — sharpening both my technical and product-thinking skills.

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