# PP Grinder vs Clifton School

The clearest difference is in-app purchases: Clifton School at none against PP Grinder's 3. Clifton School also leads on iOS requirement (10.0 vs 13.5). PP Grinder's advantage is update cadence (every 3 days vs every 5 months). On price, ads and device support there is nothing between them.

Both are free to download. PP Grinder sells 3 one-off in-app purchases. Clifton School asks for nothing beyond the download.

PP Grinder ships an update every 3 days, Clifton School every 5 months. The most recent releases landed on October 14, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | PP Grinder | Clifton School |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/pp-grinder/id1518160074/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 5 months |
| Monetization | Free with in-app purchases | — |
| Size | 5 MB | 11 MB |
| Requires iOS | 13.5 | **10.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Aaron DeLory](https://appshunter.io/developer/1496042073) | [Clifton School](https://appshunter.io/developer/1553390608) |

## What reviewers say

### PP Grinder

[App page](https://appshunter.io/ios/app/pp-grinder/id1518160074)

This app assists players in calculating the scores needed to achieve specific PP (Performance Points) goals in a rhythm game. It provides song keys for easy downloading and displays user scores, stats, and a global leaderboard.

**Highlights:** Calculate PP goals, Get song download keys, View scores and stats, Global leaderboard, Haptic Touch information

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small PP Tip | $0.99 | one-time |
| Medium PP Tip | $4.99 | one-time |
| Big PP Tip | $9.99 | one-time |


### Clifton School

[App page](https://appshunter.io/ios/app/clifton-school/id1553390606)

**In-app purchases:** none


## Frequently asked questions

### Is PP Grinder free?

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

### Is Clifton School free?

Clifton School is free to download, with no in-app purchases.

### Do PP Grinder or Clifton School have ads?

Neither PP Grinder nor Clifton School shows ads.

### Which is updated more often, PP Grinder or Clifton School?

PP Grinder ships an update every 3 days, and Clifton School every 5 months. Most recently, PP Grinder was updated on October 14, 2026 and Clifton School on October 19, 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.*