# Human Skeleton vs AP Environmental Science Quiz

The clearest difference is price: AP Environmental Science Quiz at Free against Human Skeleton's $1.99. AP Environmental Science Quiz also leads on update cadence (every 3 weeks vs every 59 months). Human Skeleton's advantage is in-app purchases (none vs 2) and ads (none vs shown). On device support there is nothing between them.

AP Environmental Science Quiz is free to download; Human Skeleton costs $1.99 up front. AP Environmental Science Quiz sells 2 in-app purchases, starting at $4.99 per month. Human Skeleton asks for nothing beyond the download.

Human Skeleton ships an update every 59 months, AP Environmental Science Quiz every 3 weeks. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Human Skeleton | AP Environmental Science Quiz |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/human-skeleton-beginner-bones/id475752311/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 73.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 59 months | **Every 3 weeks** |
| Monetization | Paid | — |
| Size | 57 MB | 16 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Unit11](https://appshunter.io/developer/461513620) | [Chaleepa Mallawa](https://appshunter.io/developer/1359729160) |

## What reviewers say

### Human Skeleton

[App page](https://appshunter.io/ios/app/human-skeleton-beginner-bones/id475752311)

This app helps children learn the names and locations of human skeleton bones through interactive modes. It includes learning, self-testing, and timed challenges to reinforce knowledge. The latest version adds more bone groups for comprehensive study.

**Highlights:** Learn bone names and locations, Interactive bone identification, Self-paced knowledge testing, Timed challenge mode, Detailed bone information, Progress tracking and scoring

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

**In-app purchases:** none


### AP Environmental Science Quiz

[App page](https://appshunter.io/ios/app/ap-environmental-science-quiz/id6761835919)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $4.99 | per month |
| Yearly | $49.99 | per year |


## Frequently asked questions

### Is Human Skeleton free?

Human Skeleton costs $1.99, with no in-app purchases.

### Is AP Environmental Science Quiz free?

AP Environmental Science Quiz is free to download, with in-app purchases available.

### Do Human Skeleton or AP Environmental Science Quiz have ads?

AP Environmental Science Quiz shows ads; Human Skeleton does not.

### Which is updated more often, Human Skeleton or AP Environmental Science Quiz?

Human Skeleton ships an update every 59 months, and AP Environmental Science Quiz every 3 weeks. Most recently, Human Skeleton was updated on October 28, 2026 and AP Environmental Science Quiz on October 24, 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.*