# EngToolBox vs General Chemistry Test Prep

The clearest difference is in-app purchases: EngToolBox at none against General Chemistry Test Prep's 9. General Chemistry Test Prep's advantage is iOS requirement (15.1 vs 17.2). On price, ads and device support there is nothing between them.

Both are free to download. General Chemistry Test Prep sells 9 in-app purchases, starting at $8.99 per 7 days. EngToolBox asks for nothing beyond the download.

## The numbers

| Metric | EngToolBox | General Chemistry Test Prep |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 14 months |
| Size | 2 MB | 53 MB |
| Requires iOS | 17.2 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Irfan Uruci](https://appshunter.io/developer/1761565214) | [YAUHEN BAHDANOVICH](https://appshunter.io/developer/1711932790) |

## What reviewers say

### EngToolBox

[App page](https://appshunter.io/ios/app/engtoolbox/id6615082500)

**Features:** macOS Compatibility

**In-app purchases:** none


### General Chemistry Test Prep

[App page](https://appshunter.io/ios/app/general-chemistry-test-prep/id6744531345)

**Features:** macOS Compatibility

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chemistry Weekly Full Access | $8.99 | per 7 days |
| Chemistry Monthly Full Access | $24.99 | per month |
| ACS Monthly Full Access | $34.99 | per month |
| ACS Quarterly Full Access | $55.99 | per 3 months |
| ACS Quarterly Full Access | $59.99 | per 3 months |
| ACS Semiannual Full Access | $75.99 | per 6 months |
| ACS Semiannual Full Access | $79.99 | per 6 months |
| ACS Annual Full Access | $109.99 | per year |
| ACS Annual Full Access | $119.99 | per year |


## Frequently asked questions

### Is EngToolBox free?

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

### Is General Chemistry Test Prep free?

General Chemistry Test Prep is free to download, with in-app purchases available.

### Do EngToolBox or General Chemistry Test Prep have ads?

Neither EngToolBox nor General Chemistry Test Prep shows ads.

---

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