# Photomath vs Uknow.AI

The clearest difference is ads: Photomath at none against Uknow.AI's shown. Photomath also leads on ratings volume (733K vs 4.2K) and chart position (#36 vs unranked). Uknow.AI's advantage is update cadence (weekly vs monthly) and review sentiment (78% vs 61%). On price, rating, in-app purchases and monetization model there is nothing between them.

Both are free to download. Photomath sells 9 in-app purchases, starting at $5.99 per month and Uknow.AI sells 14 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Photomath holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: Photomath has 733K ratings behind it against 4.2K, so its average is the more settled of the two. Written reviews complicate that: 61% of Photomath's written reviews are positive against 78% of Uknow.AI's, so the app with the better star average is not the one people write more warmly about.

Photomath ships an update monthly, Uknow.AI weekly. The most recent releases landed on October 27, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Photomath | Uknow.AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (733K ratings)](https://appshunter.io/ios/app/photomath/id919087726/reviews)** | [4.6 (4.2K ratings)](https://appshunter.io/ios/app/uknowai-homework-and-math-solver/id1447618956/reviews) |
| Number of ratings | **733K** | 4.2K |
| Positive reviews | 60.6% of reviews | **77.7% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Weekly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | **#36** | — |
| Size | 30 MB | 121 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Google](https://appshunter.io/developer/281956209) | [Study Evolution EdTech Pte. Ltd.](https://appshunter.io/developer/1612612206) |

## What reviewers say

### Photomath

[App page](https://appshunter.io/ios/app/photomath/id919087726)

**Currently charting:** #36 Top Grossing · Education, #91 Top Free · Education (US App Store)

Scan any math problem to receive instant, step-by-step explanations and accurate solutions. This app breaks down complex problems into manageable steps, helping users understand the 'how' and 'why' of math. It supports a wide range of math topics, from basic arithmetic to advanced calculus.

**Highlights:** Scan math problems, Step-by-step explanations, Word problem solver, Interactive graphs, Multiple solution methods, Scientific calculator

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Photomath Plus | $5.99 | per month |
| Photomath Plus | $7.99 | per month |
| Photomath Plus | $9.99 | per month |
| Photomath Plus | $9.99 | per month |
| Photomath Plus | $9.99 | per month |
| Photomath Plus | $29.99 | per year |
| Photomath Plus | $39.99 | per year |
| Photomath Plus | $49.99 | per 6 months |
| Photomath Plus | $69.99 | per year |

**What reviewers like**

- 🚀 Helpful for homework and understanding concepts
- 👍 Provides step-by-step solutions and explanations
- 🤖 Accurate and reliable for solving equations
- 💡 Useful for checking work and learning from mistakes

**What reviewers complain about**

- 💰 Paywall for accessing step-by-step explanations
- 🔒 Concerns about using the app to cheat
- 🐛 Camera focusing issues and inability to solve certain problem types
- 💸 Expensive monthly subscription fee

**Reported bugs**

- Incorrect answers or solutions provided for some problems
- Compatibility issues with newer devices or operating systems

**Requested features**

- Support for word problems and more advanced math concepts
- Option to use front-facing camera for scanning
- Cheaper or one-time payment model instead of subscription


### Uknow.AI

[App page](https://appshunter.io/ios/app/uknowai-homework-and-math-solver/id1447618956)

This AI-powered study assistant provides instant solutions and step-by-step guidance for all subjects, from math to writing. It offers video explanations, error analysis, and 24/7 support to help students improve their grades and understanding.

**Highlights:** AI-powered homework solutions, Step-by-step guidance, Support for all subjects, Video explanations, Wrongs Review for error analysis, 24/7 instant help

**Features:** Vision Pro support

**In-app purchases (14)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Uknow.AI Plus Monthly Offer | $1.99 | per month |
| CheckMath Plus 1ヶ月 | $8.49 | per month |
| CheckMath Plus Monthly | $8.99 | per month |
| Uknow.AI Plus Monthly | $9.99 | per month |
| Uknow.AI Plus Monthly Offer | $9.99 | per month |
| CheckMath Plus Monthly | $9.99 | per month |
| Uknow.AI Plus 3 Monthly | $28.99 | per 3 months |
| Uknow.AI Plus 3 Monthly Offer | $28.99 | per 3 months |
| CheckMath Plus 1年間 | $56.99 | per year |
| CheckMath Plus Yearly | $59.99 | per year |
| CheckMath Plus 6-month | $59.99 | per 6 months |
| Uknow.AI Plus Yearly | $99.99 | per year |
| Uknow.AI Plus Yearly Offer | $99.99 | per year |
| CheckMath Plus Yearly | $99.99 | per year |

**What reviewers like**

- 🚀 Helps with everything and makes it easier
- 👍 Best app for anything
- 👍 Amazing app
- 👍 Awesome
- 👍 Great app

**What reviewers complain about**

- 🐛 App stops working, won't accept payment
- 🐛 Gives wrong answers
- 🐛 Disruptive ads
- 🐛 Inaccurate
- 🐛 Confusing

**Reported bugs**

- App crashing
- Incorrect answers
- Compatibility issues
- Login problems

**Requested features**

- More advanced features
- Improved accuracy
- Better free version
- Ability to do multiple problems at once
- Improved video explanations


## Frequently asked questions

### Is Photomath free?

Photomath is free to download, with in-app purchases available.

### Is Uknow.AI free?

Uknow.AI is free to download, with in-app purchases available.

### Which has better reviews, Photomath or Uknow.AI?

Photomath is rated higher. Photomath averages 4.8 out of 5 from 733K ratings, while Uknow.AI averages 4.6 from 4.2K ratings.

### Do Photomath or Uknow.AI have ads?

Uknow.AI shows ads; Photomath does not.

### Which is updated more often, Photomath or Uknow.AI?

Photomath ships an update monthly, and Uknow.AI weekly. Most recently, Photomath was updated on October 27, 2026 and Uknow.AI on October 26, 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.*