3Calc
Triple Efficiency
USD 0.99 · Designed for iPad
Whether you’re handling personal finance, restaurant tips, or just everyday math, ThreeCalc’s three independent calculators and dedicated histories let you manage multiple calculations without losing track of any results. Simply swipe left or right to switch calculators, tap any history entry to reuse its result, or long-press for quick copy/delete actions.
- User Stories -
“I often need to juggle multiple calculations at once.”
With ThreeCalc’s triple setup, each calculator retains its own separate history, so you can keep personal, work, and random calculations neatly apart—no more mixed-up results.
“I hate retyping numbers I already calculated.”
In ThreeCalc, just tap a past result in the history to insert it into your new expression. It’s a huge time-saver, and you can always long-press to copy or delete if needed.
- Key Features -
Three Independent Calculators: Seamlessly swipe among them—each with its own history log.
Scrollable & Separated History: Quickly review previous calculations; no cross-contamination.
One-Tap Reuse: Tap any old result to add it into your current calculation.
Long-Press Actions: Copy an entire expression to the clipboard or delete entries with ease.
Persistent Data: All histories and settings are automatically saved, so you’ll never lose your work.
- I Value Your Feedback! -
I’m a solo developer who built ThreeCalc from scratch, fueled by my passion for creating truly useful apps. I’ll be updating this app regularly and would love to know what you think! Please consider leaving a rating or review—your support means the world to me. Thank you so much! :)
Ratings & Reviews
This app has not received enough ratings or reviews to display an overview.
- Major under-the-hood improvements!
- Completely revamped the core algorithm to make everything faster and more responsive.
- Significantly optimized the backspace functionality — it's now smoother, smarter, and more reliable.
As a solo developer, I pour my heart into every update. Thank you for supporting this journey — your feedback truly drives progress!
The developer, Tongze Mao, 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
- Tongze Mao
- Size
- 439.3 KB
- Category
- Utilities
- Compatibility
Requires iOS 15.6 or later.
- iPhone
Requires iOS 15.6 or later. - iPad
Requires iPadOS 15.6 or later. - iPod touch
Requires iOS 15.6 or later. - Mac
Requires macOS 12.5 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- Languages
- English and Simplified Chinese
- Age Rating
4+
- 4+
- Copyright
- © 2025 Tongze Mao
