Comparison

Arithmetic Train your Brain vs DualSide

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

Head to head
About

Arithmetic Train your Brain

Engage in daily brain training with arithmetic puzzles. Compete against your past performance to improve your calculation skills and stimulate your mind. Enjoy a progressive difficulty system and track your progress with a calendar feature.

Highlights
  • Daily brain training
  • Compete with past self
  • Progressive difficulty levels
  • Four arithmetic operations
  • Calendar progress tracking
  • Unlimited play
Features
Read full description

In addition, "Arithmetic Train your Brain" allows you to compete with your past self! Because it is your past self, not anyone else's, you can compete with your past self, which is good for your brain and stimulates your brain. By beating your past self, you can enjoy the feeling of surpassing yourself! 〇Let's give your brain a good stimulus! Let's stimulate your brain by solving calculations on the theme of "Keisan" that everyone can understand! In easy level, you will feel good to find and solve the puzzles one after another. At higher difficulty levels, you can enjoy the sensation of sweating your brain as you solve challenging calculations with step-by-step instructions. You will also be able to exercise your imagination and stimulate your brain! 〇Let's go beyond your past self! In addition, you can compete with your past self in "Everyday Keisan"! Because it is your past self, not anyone else's, you can compete with your past self, which is good for your brain and creates a good stimulus. By beating your past self, you can enjoy the feeling of surpassing yourself! 〇Keep going every day! Calendar function is included! The days when you play and clear the game are recorded. You can expect to activate your brain by continuing the good brain stimulation every day. Enjoy the fun of accumulating daily efforts by collecting stars on the calendar! The greatest effort is to keep going! Keep going every day and your brain will be rejuvenated! 〇No dropouts! You have lives to experience growth, but you can play even if your life reaches 0! You can play to the end without dropping out. Anyone can play to the end of the game, so you will always be able to step up without anyone dropping out. If you are making a lot of mistakes, take your time to think and solve the calculations at your own pace! And enjoy your calculation skills as they improve little by little, even if it's slowly. It's okay to take it slow, there is plenty of room for growth! Everyone can enjoy growth at their own pace! 〇Find the right amount of stimulation! Tally, subtract, multiply, divide, and divide by four arithmetic operations with multiple difficulty levels. Start with the level that suits you best and give your brain a good stimulus! Once you progress to the next level, you can enjoy brain training with higher difficulty levels as your daily routine! 〇Recommended for People who want to practice addition, subtraction, multiplication, and division. People who want to practice addition, subtraction, multiplication, and division People who want to train their brains quickly. People who have difficulty with other calculation apps.

About

DualSide

A fast-paced reaction game focused on timing and precision. Flip your paddle to match colors and keep the rally going. Compete with friends and climb global leaderboards in this skill-based, minimalist experience.

Highlights
  • One-tap paddle flipping
  • Endless rally gameplay
  • Global leaderboard competition
  • Head-to-head challenges
  • Seamless iCloud sync
  • Minimalist design
Features
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DualSide is a fast-paced reaction game where timing is everything. Flip your paddle, match the color, and keep the rally alive. What starts simple quickly becomes intense. One mistake and it is game over. Challenge friends with iOS 26 Game Center Challenges, climb the global leaderboard, activate score multipliers, and test your reflexes in an endless, evolving rally. With bold colors and minimal design, DualSide is pure skill with no distractions. Features • One-tap paddle flipping mechanics. • Endless rally gameplay with increasing intensity with multipliers. • Compete head-to-head with friends via Game Center on iOS 26. • Global leaderboard competition , get your pot on today's, week or all time leaderboard. • Seamless iCloud sync. Pick up where you left off on any device. • Clean, minimal design focused on reaction and precision. Can you keep the rally alive and rise to the top?

Screenshots

Arithmetic Train your Brain4 screens
DualSide4 screens

Verdict

The call

The clearest difference is in-app purchases: Arithmetic Train your Brain at none against DualSide's 1. Arithmetic Train your Brain also leads on update cadence (daily vs every 3 weeks) and iOS requirement (11.0 vs 15.6). On price, rating, review sentiment and ratings volume 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. DualSide sells 1 one-off in-app purchase. Arithmetic Train your Brain asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Arithmetic Train your Brain against 5.0 for DualSide. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Arithmetic Train your Brain ships an update daily, DualSide every 3 weeks. The most recent releases landed on September 23, 2026 and October 10, 2026 respectively.

Scorecard4 real differences · 6 level
Arithmetic Train your Brain versus DualSide: the parameters behind the verdict, then further details
ParameterArithmetic Train your BrainDualSide
PriceFreeFree
Rating5.0 (2 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings2 — better1
Update frequencyDaily — betterEvery 3 weeks
AdsYesYes
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better15.6
Further details — not scored
Size64 MB65 MB
Age rating17+4+
Developerminoru yamazakiVikas Pawar

Customer experience

Arithmetic Train your Brain

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

DualSide

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Arithmetic Train your Brain

No in-app purchases

1 purchases

DualSide

One-time1
  • Remove Ads$2.99

Questions

Is Arithmetic Train your Brain free?
Arithmetic Train your Brain is free to download, with no in-app purchases.
Is DualSide free?
DualSide is free to download, with in-app purchases available.
Which has better reviews, Arithmetic Train your Brain or DualSide?
Arithmetic Train your Brain and DualSide are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.
Do Arithmetic Train your Brain or DualSide have ads?
Both Arithmetic Train your Brain and DualSide show ads.
Which is updated more often, Arithmetic Train your Brain or DualSide?
Arithmetic Train your Brain ships an update daily, and DualSide every 3 weeks. Most recently, Arithmetic Train your Brain was updated on September 23, 2026 and DualSide on October 10, 2026.

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