True or False Math vs Calcul Mental in Space
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
True or False Math
Test your mental math skills in a fast-paced, one-minute challenge. Solve basic arithmetic problems by quickly identifying if they are true or false. Compete with others on leaderboards and unlock achievements.
- One-minute timed challenges
- True/False math problem solving
- Basic arithmetic operations (+, -, ×, ÷)
- Leaderboard competition
- Achievement unlocking
- Game Center integration
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• 2+2=5? WRONG ! • Answer TRUE or FALSE as fast as you can in 1 minute! • Includes the 4 basic math operations (+ - × ÷) • Addition, Subtraction, Multiplication, Division • Compete on Leaderboards! Earn all Achievements! (Game Center)
Calcul Mental in Space
Practice mental math with a fun, space-themed game. Improve your calculation speed, reflexes, and math skills through engaging challenges. Master addition, subtraction, multiplication, and division with increasing difficulty levels.
- Mental math practice
- Speed and reflex training
- Addition, subtraction, multiplication, division
- Times and division tables review
- Progressive difficulty levels
- Achievement encouragement
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You will calculate very quickly and increase your reflexes. The game has levels from easy to difficult for you to choose. All the math problems are included for you: Addition Subtraction Multiplication Division Moreover, the game also helps you review quickly: Times tables Division tables Especially, the game always encourages your achievements. You will not have to try to memorize boring math problems. Instead, you will naturally memorize multiplication and division. Your job is just to choose 1 of 4 answers. It will be very easy to play but really hard to achieve a high score. You will feel truly challenged. If you want a high score, you must truly memorize times tables, division tables, addition and subtraction problems, and have good reflexes and calmness. The game can be addictive, you will always want to achieve a high score and break your own record. The result is that you will improve your math skills every day. Increase your reflexes, be calmer, and handle problems better. That is good for your development. The game is completely free and there is no barrier to stop you from quick mental math. I decided to bring this mental math game to more people, hoping to help more of you. Help you no longer be afraid of mental math and love math more. You will play with math problems instead of struggling with them. Terms of Service at https://sites.google.com/view/math-terms-of-service-terms/ Privacy Policy at https://sites.google.com/view/5m-workout-privacy/ Graphics used in this app are designed by Freepik (https://www.freepik.com)
Screenshots
Verdict
The clearest difference is rating: Calcul Mental in Space at 4.4 against True or False Math's 3.8. Calcul Mental in Space also leads on update cadence (every 6 days vs every 17 months) and ratings volume (575 vs 13). True or False Math's advantage is ads (none vs shown) and monetization model (free vs free with in-app purchases). On price, review sentiment, in-app purchases 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
Both are free to download. True or False Math sells 1 one-off in-app purchase and Calcul Mental in Space sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Calcul Mental in Space holds the better App Store score, 4.4 against 3.8. That said, the two scores are not equally well evidenced: Calcul Mental in Space has 575 ratings behind it against 13, so its average is the more settled of the two. Written reviews split almost evenly too, at 79% and 79% positive.
True or False Math ships an update every 17 months, Calcul Mental in Space every 6 days. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.
| Parameter | True or False Math | Calcul Mental in Space |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (13 ratings) | 4.4 (575 ratings) — better |
| Positive reviews | 79.4% of reviews — better | 78.9% of reviews |
| Number of ratings | 13 | 575 — better |
| Update frequency | Every 17 months | Every 6 days — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 4 MB | 134 MB |
| Age rating | 4+ | 12+ |
| Developer | Peter Li | Huy Le |
Customer experience
True or False Math
Calcul Mental in Space
In-app purchases
True or False Math
- REMOVE ADS (True or False Math)$0.99
Calcul Mental in Space
- Upgrade to Premium$2.99
Questions
Is True or False Math free?
Is Calcul Mental in Space free?
Which has better reviews, True or False Math or Calcul Mental in Space?
Do True or False Math or Calcul Mental in Space have ads?
Which is updated more often, True or False Math or Calcul Mental in Space?
Other comparisons
