Mental Dice vs FORCE CALCULATOR
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Mental Dice
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This is an application for performing magic tricks. You can let the opponent choose the dice roll freely, and you can secretly know the dice roll selected by the opponent. Please check "How To Use" after launching the app.
FORCE CALCULATOR
This app functions as a standard calculator but includes secret tools for magicians to perform tricks. It offers a free version with basic calculator functions and a one-time purchase for advanced performance features, all while appearing as an ordinary calculator to an audience.
- Secret performance tools for magicians
- Prediction and coincidence modes
- Audience-participation features
- Interactive tutorials
- Multiple calculator styles
- Calculation history
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FORCE CALCULATOR is a calculator app for magicians that looks and works just like a familiar everyday calculator. The standard calculator is free to use. A one-time upgrade to FORCE CALCULATOR Pro unlocks discreet performance tools designed for calculator magic. Pro features: • Performance modes for predictions and impossible coincidences • Memorable routines built around the current date and time • Flexible tools for audience-participation performances • Interactive tutorials presented directly on the calculator screen Additional features: • iOS 18 and iOS 26 calculator styles • Calculation history • Japanese and English interface • Restore purchases on devices using the same Apple Account • No subscription • No advertising, analytics, or tracking To your audience, it remains an ordinary calculator. To the performer, it is a dependable secret tool for creating natural and surprising calculator magic.
Screenshots
Verdict
The clearest difference is price: FORCE CALCULATOR at Free against Mental Dice's $3.99. FORCE CALCULATOR also leads on update cadence (every 2 weeks vs every 26 months). Mental Dice's advantage is in-app purchases (none vs 1) and iOS requirement (16.0 vs 18.0). 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
FORCE CALCULATOR is free to download; Mental Dice costs $3.99 up front. FORCE CALCULATOR sells 1 one-off in-app purchase. Mental Dice asks for nothing beyond the download.
Mental Dice ships an update every 26 months, FORCE CALCULATOR every 2 weeks. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.
| Parameter | Mental Dice | FORCE CALCULATOR |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | — | 1.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 26 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone | iPhone |
| Requires iOS | 16.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 1 MB | 2 MB |
| Age rating | 17+ | 4+ |
| Developer | matsumoto yuuki | Akinori Kobayashi |
In-app purchases
Mental Dice
No in-app purchases
FORCE CALCULATOR
- Pro$59.99
Questions
Is Mental Dice free?
Is FORCE CALCULATOR free?
Do Mental Dice or FORCE CALCULATOR have ads?
Which is updated more often, Mental Dice or FORCE CALCULATOR?
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