Smart Instant Calculator
Ichi Hosotsuji Utilities iPhoneiPadiPod touch
Smart Instant Calculator is a free Utilities app for iPhone and iPad by Ichi Hosotsuji. Requires iOS 18.0. Updated November 27, 2025.
- Price
- Free
- on the App Store
- Size
- 8 MB
- Age 4+
- Updated
- Nov 27
- 2025 · v1.1.1
Screenshots
About Smart Instant Calculator
◇Why Smart Calculator?◇ ・Real-time results: No “=” required—answers appear as you type. ・Widget-first: Do the math right on the Home Screen, then hand off values to the app. ・Keep & Drop: Ditch confusing M+/M−. Save a value with Keep, remove it with Drop—simple and intuitive. ・Only the essentials: All the everyday functions you actually use. ・Designed for comfort: Clean UI and eye-friendly colors for long sessions. ・Completely free: Every feature, no paywall. ◇Recommended For◇ ・You want a clean, straightforward calculator ・The default calculator feels limited ・You prefer instant results and minimal taps ・Opening an app for every quick calc is a hassle
What’s new
Version 1.1.1 · Updated November 27, 2025
- Added an "=" button, which allows you to replace an expression with the current calculation result. - Fixed an issue that caused alignment to be distorted on certain devices.
App privacy
The developer, Ichi Hosotsuji, 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, Other Usage 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: Crash Data, Performance Data
- Other Data: Other Data Types
Used for: Third-Party Advertising, Analytics, App Functionality
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:
- Usage Data: Other Usage Data
- Diagnostics: Other Diagnostic Data
Used for: Third-Party Advertising, Analytics
Alternatives to Smart Instant Calculator
Looking for apps like Smart Instant Calculator? Here are 6 similar apps on the App Store. The highest rated is CalculatorRe (5.0/5), and all 6 are free to download.
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コピー履歴・定型文・AIキーボード｜RiReKey（履歴）
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ClearKey Calc
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ProCalc – Calculator App
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CalculatorRe
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EnterCalc
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thaiapp calculator
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Smart Instant Calculator | – | Free | November 27, 2025 | |
| コピー履歴・定型文・AIキーボード｜RiReKey（履歴） | – | Free | Oct 14, 2026 | Compare |
| ClearKey Calc | – | Free | Apr 8, 2026 | Compare |
| ProCalc – Calculator App | – | Free | Jun 30, 2026 | Compare |
| CalculatorRe | 5.0 / 5 (2) | Free | Oct 8, 2026 | Compare |
| EnterCalc | – | Free | Oct 8, 2026 | Compare |
| thaiapp calculator | – | Free | Apr 23, 2026 | Compare |