Freelance calculate income - 18/12/2025 11:45 EST
Budget: $1,500 – $3,000 USD
I’m planning to launch a dedicated Android application and I need an experienced mobile app developer to bring it to life. The core requirement is a smooth, secure online-payment flow embedded directly in the app—think in-app checkout, card or wallet integrations, and a receipt system that users can trust.
Here’s what I expect:
• An Android-native build (Java or Kotlin) that runs reliably across recent OS versions.
• Fully functional payment gateway integration, tested end-to-end in both sandbox and live modes.
• Clean, well-commented code that I can hand over to another developer in the future if needed.
• An APK plus source code delivered through a private repo, with installation instructions.
Acceptance criteria
• Payments process successfully without crashes or UI freezes.
• Transaction data is encrypted during transmission and stored only when absolutely necessary.
• The final build is accepted to Google Play’s internal test track without policy violations.
If you’ve shipped Android apps featuring in-app payments before, I’d love to see a quick demo or link. Let’s discuss timelines and any gateway suggestions you might have so we can get started right away.
Here’s what I expect:
• An Android-native build (Java or Kotlin) that runs reliably across recent OS versions.
• Fully functional payment gateway integration, tested end-to-end in both sandbox and live modes.
• Clean, well-commented code that I can hand over to another developer in the future if needed.
• An APK plus source code delivered through a private repo, with installation instructions.
Acceptance criteria
• Payments process successfully without crashes or UI freezes.
• Transaction data is encrypted during transmission and stored only when absolutely necessary.
• The final build is accepted to Google Play’s internal test track without policy violations.
If you’ve shipped Android apps featuring in-app payments before, I’d love to see a quick demo or link. Let’s discuss timelines and any gateway suggestions you might have so we can get started right away.