Special Products Calculator vs COMath
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Special Products Calculator
Instantly solve algebraic expressions like (a+b)², (a-b)², and (a+b)(a-b) with step-by-step solutions. Prepare for exams and finish homework without stress. Share solutions with friends and access curated learning videos.
- Step-by-step solutions
- Solve trinomials
- Share solutions
- Learning videos
- Input feedback
- Manage solutions
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Finish your homework instantly. Prepare for exams without stress. Free, complete step-by-step solutions. Enter your values and solve (a+b)², (a-b)², or (a+b)(a-b). HOW IT WORKS Enter your values in the correct fields and get started. You’ll receive the solution instantly and can share it with friends or classmates. YOUR PERSONAL DATA We don’t need it. Only anonymized data is collected, for example: - which features are used - how many solutions are generated This helps us improve. No conclusions can be drawn about you. COSTS Everything is free to use. 24/7 access to your solutions. All solution steps are always fully shown. If you need many solutions in a short time, various purchase options are available. EXTRAS - curated learning videos - feedback for incorrect inputs - manage your own solutions - app introduction CONTACT Questions and feedback via Discord or directly in the app review.
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.
Screenshots
Verdict
The clearest difference is review sentiment: COMath at 100% against Special Products Calculator's 50%. COMath also leads on rating (4.8 vs 4.0) and in-app purchases (none vs 8). Special Products Calculator's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement 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. Special Products Calculator sells 8 one-off in-app purchases. COMath asks for nothing beyond the download.
COMath holds the better App Store score, 4.8 against 4.0. That said, the two scores are not equally well evidenced: COMath has 45 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 50% of Special Products Calculator's written reviews are positive against 100% of COMath's.
Special Products Calculator ships an update every 3 weeks, COMath monthly. Both last shipped on October 24, 2026.
| Parameter | Special Products Calculator | COMath |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (4 ratings) | 4.8 (45 ratings) — better |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 4 | 45 — better |
| Update frequency | Every 3 weeks — better | Monthly |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 180 MB | 89 MB |
| Age rating | 4+ | 9+ |
| Developer | Glindemann, Sennoun, Langer GbR | Jianfeng Wu |
Customer experience
Special Products Calculator
COMath
In-app purchases
Special Products Calculator
- +30 User Tokens$0.29
- +1 Convenience Token / 6h, max. +2$0.59
- +150 User Tokens$0.99
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- +2 Convenience Tokens / 6h, max. +4$0.99
- +300 User Tokens$1.49
- +4 Convenience Tokens / 6h, max. +8$1.59
- Remove Ads$1.99
- Lifetime Access$1.99
COMath
No in-app purchases
Questions
Is Special Products Calculator free?
Is COMath free?
Which has better reviews, Special Products Calculator or COMath?
Do Special Products Calculator or COMath have ads?
Which is updated more often, Special Products Calculator or COMath?
Other comparisons
