Arithmetist vs Void Roller
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Arithmetist
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"Arithmetist" is an exciting fast-paced calculation puzzle game designed to test your math skills and quick thinking! Puzzle Rules The rules are simple yet challenging. Draw a single line to create an equation that matches the specified "Goal" number to clear the level. You will use the following basic operations: Addition: 1 + 1 = 2 Subtraction: 3 - 1 = 2 Multiplication: 1 x 2 = 2 Modulus: 7 % 5 = 2 Equations are calculated from left to right, so you need to be mindful of the order of operations. For example: 1 + 2 x 3 = 9 Following these rules, your task is to create the optimal equation to reach the goal number. Score The scoring system is based on the level and the length of the equation you create. Even if the result is the same, longer equations will earn higher scores. This means you need to think creatively and strategically, making the game not just about calculations but also about solving puzzles. Levels The game has a maximum level of 20. Reaching level 20 requires advanced calculation skills and cool-headed decision-making. Each level gradually increases in difficulty, constantly providing a new challenge for the player. Test your math abilities and aim for the highest level! Challenging Gameplay "Arithmetist" offers simple yet deep gameplay. Compete for high scores and challenge your own personal best to experience continuous discovery and a sense of accomplishment. Playing "Arithmetist" is not only fun but also helps improve your calculation and problem-solving skills. Enjoy the game anytime, anywhere on your smartphone. Download now and start your challenge! Aim to become the ultimate calculation puzzle master!
Void Roller
Navigate an endless 3D course filled with traps. This free arcade game offers simple controls and physics-based ball movement. Test your reflexes and aim for high scores in two engaging modes.
- Intuitive left/right controls
- Boost jump ability
- Physics-based ball movement
- Level Mode with 100 stages
- Infinity Mode for high scores
- Variety of unique traps
- In-game items
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Roll, dodge, and push your limits. Guide your ball through an endless course filled with traps in this free 3D action game. Simple controls, yet you won't be able to stop playing. A casual game perfect for killing time — but with enough depth to test your reflexes and split-second decisions. [2 Modes] ■ Level Mode Work your way through 100 stages, collecting stars as you go. Each stage brings a unique set of creative obstacles to overcome. ■ Infinity Mode Chase the highest score on this endless runner with no finish line. Share your score on social media and compare with friends. [Features] ・Intuitive left/right controls + boost jump ・Physics-based ball movement for a realistic feel ・A wide variety of unique traps await ・Use items to turn the tide when things get tough ・More levels and traps coming soon! [Perfect for you if...] ・You're looking for a free mobile game to pass the time ・You love simple yet addictive action games ・You want to test your reflexes ・You enjoy chasing high scores How far can you roll?
Screenshots
Verdict
The clearest difference is in-app purchases: Void Roller at none against Arithmetist's 1. Arithmetist's advantage is update cadence (daily vs every 2 weeks) and iOS requirement (12.0 vs 15.0). On price, 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
Both are free to download. Arithmetist sells 1 one-off in-app purchase. Void Roller asks for nothing beyond the download.
Arithmetist ships an update daily, Void Roller every 2 weeks. The most recent releases landed on August 23, 2026 and August 11, 2026 respectively.
| Parameter | Arithmetist | Void Roller |
|---|---|---|
| Price | Free | Free |
| Rating | — | 2.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Daily — better | Every 2 weeks |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Monetization | — | Ad-supported |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 115 MB | 196 MB |
| Age rating | 4+ | 4+ |
| Developer | Code and DESIGN inc. | Tatsuhiko Miura |
In-app purchases
Arithmetist
- No Ads$2.99
Void Roller
No in-app purchases









