# COMath vs uCertifyPrep InDesign CC 2020

The clearest difference is in-app purchases: COMath at none against uCertifyPrep InDesign CC 2020's 1. COMath also leads on update cadence (monthly vs every 10 months). uCertifyPrep InDesign CC 2020's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. uCertifyPrep InDesign CC 2020 sells 1 one-off in-app purchase. COMath asks for nothing beyond the download.

COMath ships an update monthly, uCertifyPrep InDesign CC 2020 every 10 months. The most recent releases landed on October 7, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | COMath | uCertifyPrep InDesign CC 2020 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (45 ratings)](https://appshunter.io/ios/app/comath-math-practice-puzzles/id1438026503/reviews)** | — |
| Number of ratings | **45** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 10 months |
| Monetization | Ad-supported | — |
| Size | 89 MB | 121 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Jianfeng Wu](https://appshunter.io/developer/1435210283) | [uCertify.com](https://appshunter.io/developer/1130631061) |

## What reviewers say

### 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


### uCertifyPrep InDesign CC 2020

[App page](https://appshunter.io/ios/app/ucertifyprep-indesign-cc-2020/id1665517126)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| uCertifyPrep InDesign CC 2020 | $49.99 | one-time |


## Frequently asked questions

### Is COMath free?

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

### Is uCertifyPrep InDesign CC 2020 free?

uCertifyPrep InDesign CC 2020 is free to download, with in-app purchases available.

### Do COMath or uCertifyPrep InDesign CC 2020 have ads?

COMath shows ads; uCertifyPrep InDesign CC 2020 does not.

### Which is updated more often, COMath or uCertifyPrep InDesign CC 2020?

COMath ships an update monthly, and uCertifyPrep InDesign CC 2020 every 10 months. Most recently, COMath was updated on October 7, 2026 and uCertifyPrep InDesign CC 2020 on October 4, 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.*