Comparison

Math Juice vs Calcul Mental in Space

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

Head to head
About

Math Juice

Practice math facts with engaging games designed by teachers. Features timed challenges and a coin-earning mode to make learning enjoyable for students, parents, and educators.

Highlights
  • Speed Run mode for timed practice
  • Grind Mode with coin rewards
  • Multiplication, division, addition, subtraction practice
  • Perfect squares and combined operations
  • Progress tracking for parents and teachers
  • Reward structure for motivation
Features
Read full description

Designed by teachers and tested by students, Math Juice is a brilliant way to make it more fun to practice math facts. Includes two modes: Speed Run - sprint practice...how many can you answer in 1 minute? Grind Mode - marathon practice...get in the zone and earn coins. The more you play, the more you win! Game types include: multiplication 1-12 division 1-12 addition 1-12 subtraction 1-12 perfect squares 11-20 combined multiplication & division 1-12 combined addition & subtraction 1-12 combined all 4 basic operations 1-12 sequential multiplication 1-12 and more! Parents - Math Juice is productive screen time. Swipe right after a game to see how much practice your future mathematician has done. There's a reward structure built in that you can use however you like. Tie game rewards to real life treats...for example: 3 in-game gold coins = 1 real-life ice cream cone...or whatever you can dream up. Teachers - there's no more engaging way for students to practice their math facts. Give it a try yourself and you'll see what we mean. Stat tracking allows you to set individual or class goals...competition AND cooperation both work with Math Juice. Students - enjoy "Productive Play"... in other words, have fun while knowing that the time you spend will benefit you down the road in your academic career. Be sure to contact us if you have any questions or suggestions.

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)

Screenshots

Math Juice3 screens
Calcul Mental in Space4 screens

Verdict

The call

The clearest difference is in-app purchases: Math Juice at none against Calcul Mental in Space's 1. Math Juice also leads on ads (none vs shown) and rating (4.7 vs 4.4). Calcul Mental in Space's advantage is update cadence (every 6 days vs every 2 months) and ratings volume (576 vs 18). On price 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Calcul Mental in Space sells 1 one-off in-app purchase. Math Juice asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Math Juice holds the better App Store score, 4.7 against 4.4. That said, the two scores are not equally well evidenced: Calcul Mental in Space has 576 ratings behind it against 18, so its average is the more settled of the two. Written reviews point the same way: 92% of Math Juice's written reviews are positive against 71% of Calcul Mental in Space's.

UpkeepUpdate frequency

Math Juice ships an update every 2 months, Calcul Mental in Space every 6 days. The most recent releases landed on November 3, 2026 and November 9, 2026 respectively.

Scorecard8 real differences · 2 level
Math Juice versus Calcul Mental in Space: the parameters behind the verdict, then further details
ParameterMath JuiceCalcul Mental in Space
PriceFreeFree
Rating4.7 (18 ratings) — better4.4 (576 ratings)
Positive reviews92.3% of reviews — better71.4% of reviews
Number of ratings18576 — better
Update frequencyEvery 2 monthsEvery 6 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.2 — better15.0
Further details — not scored
Size16 MB134 MB
Age rating4+12+
DeveloperBryan BazilauskasHuy Le

Customer experience

Math Juice

All ratings17 ratings
Positive88.2%
Neutral5.9%
Negative5.9%
Written reviews13 reviews
Positive92.3%
Neutral7.7%
Negative0.0%

Calcul Mental in Space

All ratings576 ratings
Positive83.5%
Neutral6.9%
Negative9.5%
Written reviews21 reviews
Positive71.4%
Neutral0.0%
Negative28.6%

In-app purchases

None

Math Juice

No in-app purchases

1 purchases

Calcul Mental in Space

One-time1
  • Upgrade to Premium$2.99

Questions

Is Math Juice free?
Math Juice is free to download, with no in-app purchases.
Is Calcul Mental in Space free?
Calcul Mental in Space is free to download, with in-app purchases available.
Which has better reviews, Math Juice or Calcul Mental in Space?
Math Juice is rated higher. Math Juice averages 4.7 out of 5 from 18 ratings, while Calcul Mental in Space averages 4.4 from 576 ratings.
Do Math Juice or Calcul Mental in Space have ads?
Calcul Mental in Space shows ads; Math Juice does not.
Which is updated more often, Math Juice or Calcul Mental in Space?
Math Juice ships an update every 2 months, and Calcul Mental in Space every 6 days. Most recently, Math Juice was updated on November 3, 2026 and Calcul Mental in Space on November 9, 2026.

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