Instant Unit Calc
Keisuke Yamakawa Utilities iPhoneiPadiPod touch
Instant Unit Calc is a free Utilities app for iPhone and iPad by Keisuke Yamakawa. Requires iOS 15.0. Updated September 14, 2026.
- Price
- Free
- on the App Store
- Size
- 34 MB
- Age 4+
- Updated
- Sep 14
- 2026 · v1.0
Screenshots
About Instant Unit Calc
Simple Calculator combines a calculator and a unit converter in one app -- see your result converted into other units as you type, no switching required. Key features: - Handles complex expressions with parentheses, not just the four basic operations - An always-visible conversion panel across 5 categories: length, weight, volume, area, and temperature - Mixed-unit math like "2 cm + 3 kg" -- results are kept per unit instead of forcing a wrong conversion - Real dimensional analysis: "3 m × 4 m = 12 m²" -- multiplying and dividing changes the unit correctly - Cross-category multiplication/division shows a synthesized unit, like "10 mL ÷ 2 kg = 5 mL/kg" - Define your own custom units, like "1 gold coin = 17 silver coins, 1 silver coin = 23 copper coins" - Three themes: Light, Dark, and follow system setting - A focused, uncluttered interface -- no extra features to get in your way
App privacy
The developer, Keisuke Yamakawa, 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:
- Identifiers: Device ID
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:
- Identifiers: Device ID
- Usage Data: Other Usage Data
- Diagnostics: Crash Data, Performance Data
Used for: Third-Party Advertising, App Functionality
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