# PPM系统 vs RIFFMATE

The clearest difference is update cadence: PPM系统 at every 9 days against RIFFMATE's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

PPM系统 ships an update every 9 days, RIFFMATE every 3 weeks. Both last shipped on September 29, 2026.

## The numbers

| Metric | PPM系统 | RIFFMATE |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 3 weeks |
| Size | 120 MB | 65 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [飞虎 官](https://appshunter.io/developer/1489124008) | [我弹你唱(上海)科技有限公司](https://appshunter.io/developer/1789346944) |

## What reviewers say

### PPM系统

[App page](https://appshunter.io/ios/app/ppm/id1489124009)

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

**In-app purchases:** none


### RIFFMATE

[App page](https://appshunter.io/ios/app/riffmate/id6739954457)

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

**In-app purchases:** none


## Frequently asked questions

### Is PPM系统 free?

PPM系统 is free to download, with no in-app purchases.

### Is RIFFMATE free?

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

### Do PPM系统 or RIFFMATE have ads?

Neither PPM系统 nor RIFFMATE shows ads.

### Which is updated more often, PPM系统 or RIFFMATE?

PPM系统 ships an update every 9 days, and RIFFMATE every 3 weeks. Most recently, PPM系统 was updated on September 29, 2026 and RIFFMATE on September 29, 2026.

---

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