Douwe F Osinga e/v Hamburger

Developer Portfolio

3 App Records
WhitneyTimeChallenge iOS Icon

WhitneyTimeChallenge

App $0.99
  • Version: 1.0
  • Size: 595.0 KB
  • Release date: 2026-07-23
  • Min iOS: 18.6
  • Bundle ID: com.aitutortest.WhitneyChallenge
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One-tap Call iOS Icon

One-tap Call

App $0.99
  • Version: 1.1
  • Size: 12.17 MB
  • Release date: 2026-02-05
  • Min iOS: 16.6
  • Bundle ID: com.vesar.Bellen-App
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Quick reMark iOS Icon

Quick reMark

App Free
  • Version: 2
  • Size: 3.16 MB
  • Release date: 2026-02-05
  • Min iOS: 18.6
  • Bundle ID: com.douwefreerk.quickremark
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