# STEM Bridge vs Chalk

The clearest difference is in-app purchases: STEM Bridge at none against Chalk's 7. On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. Chalk sells 7 in-app purchases, starting at $5.99 per month. STEM Bridge asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for STEM Bridge against 5.0 for Chalk. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

## The numbers

| Metric | STEM Bridge | Chalk |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/stem-bridge/id6755667551/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/chalk-ai-math-tutor/id6762059558/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 4 days |
| Monetization | **Free** | Freemium |
| Size | 17 MB | 1 MB |
| Requires iOS | 18.5 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [XU GUO](https://appshunter.io/developer/1855383245) | [tyler hayes](https://appshunter.io/developer/1856083936) |

## What reviewers say

### STEM Bridge

[App page](https://appshunter.io/ios/app/stem-bridge/id6755667551)

This app promotes hands-on STEM education by providing accessible and engaging experiences. It offers free STEM kits designed to foster exploration, critical thinking, and problem-solving skills for all students.

**Highlights:** Hands-on STEM learning, Accessible educational experiences, Free STEM kits, Encourages exploration, Develops critical thinking, Promotes problem-solving

**Features:** macOS Compatibility

**In-app purchases:** none


### Chalk

[App page](https://appshunter.io/ios/app/chalk-ai-math-tutor/id6762059558)

This AI-powered math tutor visually explains concepts step-by-step on a digital whiteboard, offering personalized guidance and identifying errors. It covers a wide range of math subjects, adapting to your learning pace and progress.

**Highlights:** Visual step-by-step explanations, Real handwriting on digital whiteboard, Audible reasoning and explanations, Live error detection and correction, Comprehensive math subject coverage, Adaptive learning and progress tracking

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chalk Lite | $5.99 | per month |
| Chalk Lite | $5.99 | per month |
| Chalk Plus | $11.99 | per month |
| Chalk Pro | $17.99 | per month |
| Chalk Lite (Yearly) | $41.99 | per year |
| Chalk Plus (Yearly) | $83.99 | per year |
| Chalk Pro (Yearly) | $125.99 | per year |


## Frequently asked questions

### Is STEM Bridge free?

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

### Is Chalk free?

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

### Which has better reviews, STEM Bridge or Chalk?

STEM Bridge and Chalk are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do STEM Bridge or Chalk have ads?

Neither STEM Bridge nor Chalk shows ads.

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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.*