CalcPure
Ad-Free Scientific Calculator
$1.99 · Designed for iPad. Not verified for macOS.
Zero ads. Pure calculation. Every feature included in one purchase.
CalcPure is a clean, fast, and completely ad-free calculator. Buy it once and get everything - no ads, no tracking, no subscriptions, no in-app purchases. Just pure calculation.
Everything is included:
- Basic calculator with +, -, x, /, %, and parentheses
- Scientific calculator (sin, cos, tan, log, ln, square root, x2, x^n, n!, pi, e, DEG/RAD)
- Programmer mode (BIN/OCT/DEC/HEX conversion, AND/OR/XOR/NOT/shift, 8-64 bit)
- Tip calculator & bill split (presets, custom %, round-up per person)
- Date calculator (days between dates, add or subtract days)
- Memory function (M+, M-, MR, MC)
- Calculation history (last 100 entries)
- Calculation tape sharing
- All 10 themes
- Dark mode (auto or manual)
- Haptic feedback
- Swipe to delete digits
- Real-time calculation preview
- State persistence (never lose your calculation)
- Lightning fast startup
- Optimized for iPad
One purchase unlocks the whole app, forever. There is no "pro tier", no locked buttons, and nothing to upgrade later.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Kohei Omori, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Kohei Omori
- Size
- 24.5 MB
- Category
- Utilities
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPad
Requires iPadOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Kohei Omori
