COMath vs AMC
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
COMath
This app acts as a personal math tutor, offering support and practice for arithmetic, algebra, and geometry. It provides over 100,000 word problems with step-by-step solutions and an equation solver to help students develop their math skills.
- Personalized math tutoring
- Arithmetic practice (addition, subtraction, multiplication, division)
- Over 100,000 math word problems
- Step-by-step equation solving
- Algebra and geometry support
- Practice without pencils
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COMath is a fun math and brain-training app for students and puzzle lovers of all ages. - Practice addition, subtraction, multiplication, and division - Solve 100,000+ math word problems with explanations - Learn algebra step by step with the equation solver - Enjoy number puzzles like Sudoku, Calcudoku, Fillomino, Minesweeper, Calculate 24, and more Practice math, sharpen logic, and enjoy solving challenges anytime, anywhere.
AMC
Access a comprehensive collection of past exam questions and solutions for AMC 8, AMC 10, and AMC 12 competitions. Review problems from 1999 to 2019 to prepare for your math contests.
- AMC 8, 10, 12 questions
- Solutions included
- 1999-2019 archives
- Math competition preparation
- Offline access to questions
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The AMC(American Mathematics Competitions) Questions and Solutions, includes AMC8 AMC10 and AMC12 from year 1999 to 2019.
Screenshots
Verdict
The clearest difference is ads: AMC at none against COMath's shown. AMC also leads on update cadence (weekly vs monthly) and monetization model (free vs ad-supported). COMath's advantage is ratings volume (45 vs 8). On price, rating, review sentiment 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.8 for COMath against 4.8 for AMC. That said, the two scores are not equally well evidenced: COMath has 45 ratings behind it against 8, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.
COMath ships an update monthly, AMC weekly. The most recent releases landed on September 21, 2026 and September 8, 2026 respectively.
| Parameter | COMath | AMC |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (45 ratings) — better | 4.8 (8 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 45 — better | 8 |
| Update frequency | Monthly | Weekly — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 89 MB | 185 MB |
| Age rating | 9+ | 4+ |
| Developer | Jianfeng Wu | 建平 刘 |
Customer experience
COMath
AMC
In-app purchases
COMath
No in-app purchases
AMC
No in-app purchases
