Thumb calculator
Hideaki Uchikoshi Utilities iPhoneiPadiPod touch
Thumb calculator is a free Utilities app for iPhone and iPad by Hideaki Uchikoshi. Requires iOS 15.8.3. Updated July 28, 2026.
- Price
- Free
- on the App Store
- Size
- 35 MB
- Age 4+
- Updated
- Jul 28
- 2026 · v1.2.68
Screenshots
About Thumb calculator
A calculator that is easy to operate with just the thumb of one hand, even on large-screen smartphones. *Specially placed numeric keypad
What’s new
Version 1.2.68 · Updated July 28, 2026
・Fixes regarding advertisement display frequency, screen transitions etc. ・Bug fixes and performance improvements, Updates regarding internal processing
App privacy
The developer, Hideaki Uchikoshi, reported these privacy practices to Apple.
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Location: Coarse Location
- Identifiers: Device ID
- Usage Data: Product Interaction, Advertising Data
- Diagnostics: Performance Data
Data Linked to You
The following data, which may be collected and linked to your identity, may be used for the following purposes:
- Location: Coarse Location
- Identifiers: Device ID
- Usage Data: Product Interaction, Advertising Data
- Diagnostics: Performance Data
Used for: Third-Party Advertising, Analytics
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Diagnostics: Crash Data
Used for: Third-Party Advertising, Analytics
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