# Atlas學習助手 vs PrepRoadRunner

The clearest difference is in-app purchases: Atlas學習助手 at none against PrepRoadRunner's 4. Atlas學習助手 also leads on ads (none vs shown) and iOS requirement (14.0 vs 17.0). PrepRoadRunner's advantage is update cadence (daily vs every 3 weeks). On price and device support there is nothing between them.

Both are free to download. PrepRoadRunner sells 4 in-app purchases, starting at $10.99 per month. Atlas學習助手 asks for nothing beyond the download.

Atlas學習助手 ships an update every 3 weeks, PrepRoadRunner daily. The most recent releases landed on October 10, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Atlas學習助手 | PrepRoadRunner |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Daily** |
| Size | 32 MB | 62 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [菁英國際文教事業股份有限公司](https://appshunter.io/developer/1033460991) | [Chun Sang Yip](https://appshunter.io/developer/1890747841) |

## What reviewers say

### Atlas學習助手

[App page](https://appshunter.io/ios/app/atlas/id6443611842)

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

**In-app purchases:** none


### PrepRoadRunner

[App page](https://appshunter.io/ios/app/preproadrunner/id6761666111)

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $10.99 | per month |
| Premium Max Monthly | $14.99 | per month |
| Premium Yearly | $49.99 | per year |
| Premium Max Yearly | $79.99 | per year |


## Frequently asked questions

### Is Atlas學習助手 free?

Atlas學習助手 is free to download, with no in-app purchases.

### Is PrepRoadRunner free?

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

### Do Atlas學習助手 or PrepRoadRunner have ads?

PrepRoadRunner shows ads; Atlas學習助手 does not.

### Which is updated more often, Atlas學習助手 or PrepRoadRunner?

Atlas學習助手 ships an update every 3 weeks, and PrepRoadRunner daily. Most recently, Atlas學習助手 was updated on October 10, 2026 and PrepRoadRunner on October 13, 2026.

---

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