# Bone Zone vs General Chemistry Tutor

The clearest difference is ads: General Chemistry Tutor at none against Bone Zone's shown. General Chemistry Tutor also leads on update cadence (every 8 days vs every 10 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Bone Zone sells 1 in-app purchase, starting at $9.99 per year and General Chemistry Tutor sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Bone Zone ships an update every 10 months, General Chemistry Tutor every 8 days. The most recent releases landed on October 30, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Bone Zone | General Chemistry Tutor |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 10 months | **Every 8 days** |
| Monetization | — | Free with in-app purchases |
| Size | 8 MB | 71 MB |
| Requires iOS | 18.2 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Brandon Tate](https://appshunter.io/developer/1762298061) | [David Soulsby](https://appshunter.io/developer/1776367161) |

## What reviewers say

### Bone Zone

[App page](https://appshunter.io/ios/app/bone-zone/id6752546351)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Bone Zone Premium | $9.99 | per year |


### General Chemistry Tutor

[App page](https://appshunter.io/ios/app/general-chemistry-tutor/id6759510431)

Master general chemistry with over 1,500 practice questions, guided examples, and 12 interactive tools. Track your progress, review weak areas, and prepare for exams. Available on iPhone and iPad.

**Highlights:** 1,500+ practice questions, Guided worked examples, 12 interactive chemistry tools, Progress tracking, Smart review, iPad native layouts

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Topics | $4.99 | one-time |


## Frequently asked questions

### Is Bone Zone free?

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

### Is General Chemistry Tutor free?

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

### Do Bone Zone or General Chemistry Tutor have ads?

Bone Zone shows ads; General Chemistry Tutor does not.

### Which is updated more often, Bone Zone or General Chemistry Tutor?

Bone Zone ships an update every 10 months, and General Chemistry Tutor every 8 days. Most recently, Bone Zone was updated on October 30, 2026 and General Chemistry Tutor on November 7, 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.*