12 in 3 vs SimpleMath
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
12 in 3
This app helps you find all possible combinations of numbers that add up to a specific sum using a set number of digits. You can also exclude certain numbers or make others mandatory for your calculations.
- Calculate number combinations
- Specify target sum
- Define number of digits
- Exclude numbers
- Require specific numbers
Read full descriptionHide full description
“12 in 3” is a small helper app to determine the possible combinations of a given sum in a given number of digits. You may also exclude certain numbers from the list or make a number to be required.
SimpleMath
Engage in quick mental math challenges across four modes: addition, subtraction, multiplication, and division. Aim for high scores by solving problems accurately and speedily within a time limit. Review your answers after each game to improve your skills.
- Four calculation modes
- Adjustable difficulty levels
- Timed challenges
- Score tracking
- Answer review
- Daily brain training
Read full descriptionHide full description
■ How to play ■ All 4 modes (addition, subtraction, multiplication, division) are prepared. 1. Choose your favorite calculation method 2. Choose difficulty level 3. Game Start! Let's solve many questions within the time limit. Every time you answer correctly, time and score will increase. Be careful as time decreases if it is incorrect! You can get a high score by clearing difficult questions. Speedy and accurate solving is a hint to high score. Since we can review the question after the end of one game, It is also possible to recheck the question solved. Please use it for your daily brain train.
Screenshots
Verdict
The clearest difference is update cadence: SimpleMath at every 11 days against 12 in 3's every 7 months. SimpleMath also leads on review sentiment (100% vs 88%) and iOS requirement (8.0 vs 14.0). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.
12 in 3 ships an update every 7 months, SimpleMath every 11 days. The most recent releases landed on October 15, 2026 and August 26, 2026 respectively.
| Parameter | 12 in 3 | SimpleMath |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 87.5% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 — better | — |
| Update frequency | Every 7 months | Every 11 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad, iPod |
| Requires iOS | 14.0 | 8.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 49 MB |
| Age rating | 4+ | 4+ |
| Developer | Frank-Peter Poschmann | Tatsuhiro Yamashita |
Customer experience
12 in 3
SimpleMath
In-app purchases
12 in 3
No in-app purchases
SimpleMath
No in-app purchases
