# ACT ® Math Prep vs Test Doctor

The clearest difference is update cadence: Test Doctor at every 4 days against ACT ® Math Prep's every 8 months. Test Doctor also leads on rating (5.0 vs 4.8) and iOS requirement (11.4 vs 13.0). ACT ® Math Prep's advantage is ratings volume (138 vs 6). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. ACT ® Math Prep sells 1 in-app purchase, starting at $9.99 per month and Test Doctor sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Test Doctor holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: ACT ® Math Prep has 138 ratings behind it against 6, so its average is the more settled of the two.

ACT ® Math Prep ships an update every 8 months, Test Doctor every 4 days. The most recent releases landed on October 14, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | ACT ® Math Prep | Test Doctor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (138 ratings)](https://appshunter.io/ios/app/act-math-prep/id437030927/reviews) | **[5.0 (6 ratings)](https://appshunter.io/ios/app/test-doctor-act-math/id1426702602/reviews)** |
| Number of ratings | **138** | 6 |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 4 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 15 MB | 74 MB |
| Requires iOS | 13.0 | **11.4** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [YourTeacher.com](https://appshunter.io/developer/340925628) | [Wayfare Apps, LLC](https://appshunter.io/developer/1139266447) |

## What reviewers say

### ACT ® Math Prep

[App page](https://appshunter.io/ios/app/act-math-prep/id437030927)

Prepare for the ACT Math test with a comprehensive study guide and practice tests. Access all content with a free trial, cancel anytime within the first three days to avoid charges.

**Highlights:** ACT Math study guide, Practice tests, Free trial, Cancel anytime

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ACT Math Test Prep | $9.99 | per month |


### Test Doctor

[App page](https://appshunter.io/ios/app/test-doctor-act-math/id1426702602)

This app helps you prepare for the ACT Math section with a smart diagnostic test. It identifies your strengths and weaknesses, then provides personalized study suggestions, articles, and practice problems for efficient learning.

**Highlights:** Smart diagnostic test, Personalized study suggestions, Study articles, Example problems, Targeted practice problems

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade to Full Version | $2.99 | one-time |


## Frequently asked questions

### Is ACT ® Math Prep free?

ACT ® Math Prep is free to download, with in-app purchases available.

### Is Test Doctor free?

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

### Which has better reviews, ACT ® Math Prep or Test Doctor?

Test Doctor is rated higher. ACT ® Math Prep averages 4.8 out of 5 from 138 ratings, while Test Doctor averages 5.0 from 6 ratings.

### Do ACT ® Math Prep or Test Doctor have ads?

Neither ACT ® Math Prep nor Test Doctor shows ads.

### Which is updated more often, ACT ® Math Prep or Test Doctor?

ACT ® Math Prep ships an update every 8 months, and Test Doctor every 4 days. Most recently, ACT ® Math Prep was updated on October 14, 2026 and Test Doctor on October 6, 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.*