BigCalc vs CalcMemo929
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BigCalc
This calculator app emits sound with each button press, offering a unique tactile feedback experience. It calculates operations in the order they are entered, similar to a standard Windows calculator. Enjoy your music while using it, as the sound output does not interfere with playback.
- Audible button feedback
- Sequential calculation logic
- Music playback compatibility
- Simple interface
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It is a calculator from which the sound is emitted when the button is pushed. The listened music doesn't stop if the volume slider is 0. The operator of this calculator is calculated in order putting it like a calculator of Windows . 1+2*3=9.
CalcMemo929
This app combines a simple calculator with note-taking capabilities, allowing users to solve math problems and save calculation processes as memos for easy reference. Its user-friendly interface and clear display enhance the learning and work experience.
- Intuitive user interface
- Clear display of calculations
- Save calculations as memos
- Full-screen number display in landscape
- Supports learning and work tasks
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CalcMemo: Integrating Simple Calculations and Memos Innovatively CalcMemo is designed to make your calculations intuitive and efficient. By seamlessly integrating calculations with note-taking, CalcMemo aids users in solving mathematical problems and enriching their learning experience. With CalcMemo, take your calculating experience to the next level. [Key Features] A user-friendly interface that enables intuitive operation. Clear display that allows you to understand complex calculation processes at a glance. The ability to save calculation processes as memos for easy reference later. In landscape mode, the selected numbers can be displayed across the entire screen for easy detailed viewing. CalcMemo is here to support your learning and work. Give it a try, and you'll experience how it smoothens your calculation process.
Screenshots
Verdict
The clearest difference is price: CalcMemo929 at Free against BigCalc's $0.99. CalcMemo929 also leads on update cadence (every 2 weeks vs every 2 months). BigCalc's advantage is in-app purchases (none vs 1) and iOS requirement (13.0 vs 16.4). On ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
CalcMemo929 is free to download; BigCalc costs $0.99 up front. CalcMemo929 sells 1 one-off in-app purchase. BigCalc asks for nothing beyond the download.
BigCalc ships an update every 2 months, CalcMemo929 every 2 weeks. The most recent releases landed on July 6, 2026 and October 15, 2026 respectively.
| Parameter | BigCalc | CalcMemo929 |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 4.0 (2 ratings) — better | — |
| Positive reviews | — | 50.0% of reviews |
| Number of ratings | 2 — better | — |
| Update frequency | Every 2 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPad, Mac | iPhone, iPad |
| Requires iOS | 13.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 1 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | r2r660cc | YOSHIHIRO TAKAHASHI |
Customer experience
BigCalc
CalcMemo929
In-app purchases
BigCalc
No in-app purchases
CalcMemo929
- Premium Plan$0.49
