# UniGrade vs Piuma

The clearest difference is in-app purchases: UniGrade at none against Piuma's 2. Piuma's advantage is update cadence (every 2 days vs every 10 days) and iOS requirement (18.0 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. Piuma sells 2 in-app purchases, starting at $3.99 per 7 days. UniGrade asks for nothing beyond the download.

UniGrade ships an update every 10 days, Piuma every 2 days. The most recent releases landed on September 11, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | UniGrade | Piuma |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 days | **Every 2 days** |
| Size | 13 MB | 19 MB |
| Requires iOS | 26.0 | **18.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Christian Kegelmann](https://appshunter.io/developer/892937476) | [Golden Genius](https://appshunter.io/developer/1824411127) |

## What reviewers say

### UniGrade

[App page](https://appshunter.io/ios/app/unigrade/id1414184915)

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

**In-app purchases:** none


### Piuma

[App page](https://appshunter.io/ios/app/piuma-learn-languages-easily/id6771447666)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Plan | $3.99 | per 7 days |
| Yearly Plan | $49.99 | per year |


## Frequently asked questions

### Is UniGrade free?

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

### Is Piuma free?

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

### Do UniGrade or Piuma have ads?

Neither UniGrade nor Piuma shows ads.

### Which is updated more often, UniGrade or Piuma?

UniGrade ships an update every 10 days, and Piuma every 2 days. Most recently, UniGrade was updated on September 11, 2026 and Piuma on September 21, 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.*