Comparison

Calcul Mental in Space vs Ready Math

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Mental math practice
  • Speed and reflex training
  • Addition, subtraction, multiplication, division
  • Times and division tables review
  • Progressive difficulty levels
  • Achievement encouragement
Features
Read full description

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)

About

Ready Math

Engaging games designed to make learning math fun and accessible. Boost problem-solving skills and confidence through interactive activities covering counting to advanced challenges.

Highlights
  • Engaging math games
  • Learn faster
  • Build problem-solving skills
  • Counting to advanced challenges
  • Boost confidence
  • Practice and grow
Features
Read full description

Make math fun and easy to master. Explore engaging games that help learn faster, think smarter, and build strong problem-solving skills. From counting and basic operations to advanced challenges, every activity is designed to boost confidence while playing. Learn, practice, and grow — all in one place.

Screenshots

Calcul Mental in Space4 screens
Ready Math2 screens

Verdict

The call

Calcul Mental in Space and Ready Math both sit at 4.4 stars, but that hides the real split: 79% of Calcul Mental in Space's written reviews are positive against 29% of Ready Math's. Calcul Mental in Space also leads on update cadence (every 6 days vs every 2 months). Ready Math's advantage is ads (none vs shown). On price, rating, ratings volume and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Calcul Mental in Space sells 1 one-off in-app purchase and Ready Math sells 4 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.4 for Calcul Mental in Space against 4.5 for Ready Math. Both are backed by a comparable volume of ratings — 576 and 712 respectively. Written reviews are what separate them: 79% of Calcul Mental in Space's written reviews are positive against 29% of Ready Math's.

UpkeepUpdate frequency

Calcul Mental in Space ships an update every 6 days, Ready Math every 2 months. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

Scorecard3 real differences · 7 level
Calcul Mental in Space versus Ready Math: the parameters behind the verdict, then further details
ParameterCalcul Mental in SpaceReady Math
PriceFreeFree
Rating4.4 (576 ratings)4.5 (712 ratings) — better
Positive reviews78.9% of reviews — better28.6% of reviews
Number of ratings576712 — better
Update frequencyEvery 6 days — betterEvery 2 months
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size134 MB382 MB
Age rating12+4+
DeveloperHuy LeMehdi Tihadi

Customer experience

Calcul Mental in Space

All ratings576 ratings
Positive83.5%
Neutral6.9%
Negative9.5%
Written reviews19 reviews
Positive78.9%
Neutral0.0%
Negative21.1%

Ready Math

All ratings712 ratings
Positive87.2%
Neutral4.6%
Negative8.1%
Written reviews7 reviews
Positive28.6%
Neutral0.0%
Negative71.4%

In-app purchases

1 purchases

Calcul Mental in Space

One-time1
  • Upgrade to Premium$2.99
4 purchases

Ready Math

Subscriptions3
  • Math - Monthly subscription$4.991 Month
  • Math - subscription3 Days trial$19.991 Year
  • Math - Annual subscription3 Days trial$49.991 Year
One-time1
  • Math - Lifetime$49.99

Questions

Is Calcul Mental in Space free?
Calcul Mental in Space is free to download, with in-app purchases available.
Is Ready Math free?
Ready Math is free to download, with in-app purchases available.
Which has better reviews, Calcul Mental in Space or Ready Math?
Ready Math is rated higher. Calcul Mental in Space averages 4.4 out of 5 from 576 ratings, while Ready Math averages 4.5 from 712 ratings.
Do Calcul Mental in Space or Ready Math have ads?
Calcul Mental in Space shows ads; Ready Math does not.
Which is updated more often, Calcul Mental in Space or Ready Math?
Calcul Mental in Space ships an update every 6 days, and Ready Math every 2 months. Most recently, Calcul Mental in Space was updated on November 7, 2026 and Ready Math on November 3, 2026.

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