Jack Kroll

AppTrack Ninja の App Store パブリッシャー。

ポートフォリオ：

• Penpal: Write & Send Letters
• BatteryShare: Remote Sync
• Recall: Minimal Flashcards
• Lab Assistant: Darkroom Timer
• Cosmic Chaos: Alien Stickers
• hide & seek: play anywhere
• Map Timer
• Minimal Light Meter
• Counter: Simple Tally