# Photo Math vs Learn to Code with Erlang

The clearest difference is price: Photo Math at Free against Learn to Code with Erlang's $3.99. Photo Math also leads on chart position (#199 vs unranked). Learn to Code with Erlang's advantage is in-app purchases (none vs 10) and ads (none vs shown). On device support there is nothing between them.

Photo Math is free to download; Learn to Code with Erlang costs $3.99 up front. Photo Math sells 10 in-app purchases, starting at $6.99 per 7 days. Learn to Code with Erlang asks for nothing beyond the download.

Photo Math ships an update every 2 weeks, Learn to Code with Erlang every 6 days. The most recent releases landed on November 8, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Photo Math | Learn to Code with Erlang |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | **[4.6 (3.1K ratings)](https://appshunter.io/ios/app/photo-math-ai-homework-helper/id6473621954/reviews)** | — |
| Number of ratings | **3.1K** | — |
| Positive reviews | 43.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Every 6 days** |
| Monetization | Free with in-app purchases | — |
| Best chart rank | **#199** | — |
| Size | 124 MB | 48 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [AppTitude Technologies OU](https://appshunter.io/developer/1896778670) | [Shahbaz Khan](https://appshunter.io/developer/1479963383) |

## What reviewers say

### Photo Math

[App page](https://appshunter.io/ios/app/photo-math-ai-homework-helper/id6473621954)

**Currently charting:** #199 Top Grossing · Education (US App Store)

This app uses AI to help with math homework. Scan problems with your camera or type them in plain English to get step-by-step solutions and explanations. It also offers an essay writing tool for academic assistance.

**Highlights:** Homework scanner, Step-by-step solutions, Type questions in plain English, Essay writer tool, Equation solver, Graph analysis

**Features:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One week access with trial | $6.99 | per 7 days |
| One week access with trial | $7.99 | per 7 days |
| One week access with trial | $9.99 | per 7 days |
| One week subscription | $9.99 | per 7 days |
| One week access | $9.99 | per 7 days |
| One week access | $11.99 | per 7 days |
| One month access with trial | $24.99 | per month |
| Quarter access | $39.99 | per 3 months |
| One year access with trial | $49.99 | per year |
| One year subscription | $59.99 | per year |

**What reviewers like**

- 👍 Helpful for learning math
- 🚀 Breaks down complex problems into simple steps
- 💡 Explains solutions in detail for better understanding

**What reviewers complain about**

- 🔒 Requires subscription to access full answers
- 🐛 Blurry/unclear answers when trying to access without subscription
- 🐛 Functionality issues like not being able to log in or scan problems

**Reported bugs**

- Unexpected errors when trying to solve problems
- Subscription issues like being charged unexpectedly

**Requested features**

- Better explanations for solutions
- More affordable pricing options


### Learn to Code with Erlang

[App page](https://appshunter.io/ios/app/learn-to-code-with-erlang/id6752514017)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Photo Math free?

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

### Is Learn to Code with Erlang free?

Learn to Code with Erlang costs $3.99, with no in-app purchases.

### Do Photo Math or Learn to Code with Erlang have ads?

Photo Math shows ads; Learn to Code with Erlang does not.

### Which is updated more often, Photo Math or Learn to Code with Erlang?

Photo Math ships an update every 2 weeks, and Learn to Code with Erlang every 6 days. Most recently, Photo Math was updated on November 8, 2026 and Learn to Code with Erlang on October 30, 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.*