# Special Products Calculator vs COMath

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.

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.

## The numbers

| Metric | Special Products Calculator | COMath |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (4 ratings)](https://appshunter.io/ios/app/special-products-calculator/id1336968812/reviews) | **[4.8 (45 ratings)](https://appshunter.io/ios/app/comath-math-practice-puzzles/id1438026503/reviews)** |
| Number of ratings | 4 | **45** |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 180 MB | 89 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 9+ |
| Developer | [Glindemann, Sennoun, Langer GbR](https://appshunter.io/developer/1024972809) | [Jianfeng Wu](https://appshunter.io/developer/1435210283) |

## What reviewers say

### Special Products Calculator

[App page](https://appshunter.io/ios/app/special-products-calculator/id1336968812)

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.

**Highlights:** Step-by-step solutions, Solve trinomials, Share solutions, Learning videos, Input feedback, Manage solutions

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| +30 User Tokens | $0.29 | one-time |
| +1 Convenience Token / 6h, max. +2 | $0.59 | one-time |
| +150 User Tokens | $0.99 | one-time |
| +2 Convenience Tokens / 6h, max. +4 | $0.99 | one-time |
| +300 User Tokens | $1.49 | one-time |
| +4 Convenience Tokens / 6h, max. +8 | $1.59 | one-time |
| Remove Ads | $1.99 | one-time |
| Lifetime Access | $1.99 | one-time |


### COMath

[App page](https://appshunter.io/ios/app/comath-math-practice-puzzles/id1438026503)

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.

**Highlights:** 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

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Special Products Calculator free?

Special Products Calculator is free to download, with in-app purchases available.

### Is COMath free?

COMath is free to download, with no in-app purchases.

### Which has better reviews, Special Products Calculator or COMath?

COMath is rated higher. Special Products Calculator averages 4.0 out of 5 from 4 ratings, while COMath averages 4.8 from 45 ratings.

### Do Special Products Calculator or COMath have ads?

COMath shows ads; Special Products Calculator does not.

### Which is updated more often, Special Products Calculator or COMath?

Special Products Calculator ships an update every 3 weeks, and COMath monthly. Most recently, Special Products Calculator was updated on October 24, 2026 and COMath on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*