# TSI Math Test Prep vs Grading Grounds

The clearest difference is in-app purchases: Grading Grounds at none against TSI Math Test Prep's 1. Grading Grounds also leads on update cadence (every 2 days vs every 6 weeks). TSI Math Test Prep's advantage is iOS requirement (13.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. TSI Math Test Prep sells 1 in-app purchase, starting at $9.99 per month. Grading Grounds asks for nothing beyond the download.

TSI Math Test Prep ships an update every 6 weeks, Grading Grounds every 2 days. The most recent releases landed on October 13, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | TSI Math Test Prep | Grading Grounds |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (372 ratings)](https://appshunter.io/ios/app/tsi-math-test-prep/id1502998680/reviews)** | — |
| Number of ratings | **372** | — |
| Positive reviews | 38.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 15 MB | 45 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [YourTeacher.com](https://appshunter.io/developer/340925628) | [Garst Peterson](https://appshunter.io/developer/1896227590) |

## What reviewers say

### TSI Math Test Prep

[App page](https://appshunter.io/ios/app/tsi-math-test-prep/id1502998680)

Prepare for the TSI Math placement test with a comprehensive study guide and practice tests. This app offers targeted content to help you achieve a high score.

**Highlights:** TSI Math study guide, Practice tests, Placement test preparation, Targeted content

**Features:** macOS Compatibility

**In-app purchases (1)**

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

**What reviewers like**

- 👍 Excellent educational content
- 👍 Step-by-step video lessons
- 👍 Makes math easier to understand
- 👍 Great for relearning material
- 👍 Organized and helpful lessons

**What reviewers complain about**

- 🐛 Frequent app crashes
- 🐛 Subscription/purchase issues
- 🐛 In-app purchase unavailable
- 🐛 Restore purchase not working
- 🐛 Audio not working

**Reported bugs**

- App crashes during lessons/tests
- App won't get past loading screen
- App freezes when trying to subscribe
- In-app purchase unavailable
- Purchase identifier invalid

**Requested features**

- Fix subscription/purchase issues
- Fix restore purchase functionality
- Fix app crashing
- Fix audio issues
- Provide clear pricing for upgrades


### Grading Grounds

[App page](https://appshunter.io/ios/app/grading-grounds/id6787039083)

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

**In-app purchases:** none


## Frequently asked questions

### Is TSI Math Test Prep free?

TSI Math Test Prep is free to download, with in-app purchases available.

### Is Grading Grounds free?

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

### Do TSI Math Test Prep or Grading Grounds have ads?

Neither TSI Math Test Prep nor Grading Grounds shows ads.

### Which is updated more often, TSI Math Test Prep or Grading Grounds?

TSI Math Test Prep ships an update every 6 weeks, and Grading Grounds every 2 days. Most recently, TSI Math Test Prep was updated on October 13, 2026 and Grading Grounds on October 5, 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.*