# KyouStudy vs mellow

The clearest difference is ads: mellow at none against KyouStudy's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. KyouStudy sells 3 in-app purchases, starting at $3.99 per month and mellow sells 2 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on November 12, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | KyouStudy | mellow |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Weekly | Weekly |
| Size | 229 MB | 129 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [HungBok](https://appshunter.io/developer/6787647770) | [Nullge](https://appshunter.io/developer/1710419601) |

## What reviewers say

### KyouStudy

[App page](https://appshunter.io/ios/app/kyoustudy-language-learning/id6799300233)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| KyouStudy Premium | $3.99 | per month |
| KyouStudy Premium (Annual) | $39.99 | per year |
| KyouStudy Premium (Lifetime) | $99.99 | one-time |


### mellow

[App page](https://appshunter.io/ios/app/mellow-ai-language-practice/id6809682341)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| mellow Membership Monthly | $7.99 | per month |
| mellow Membership Yearly | $59.99 | per year |


## Frequently asked questions

### Is KyouStudy free?

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

### Is mellow free?

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

### Do KyouStudy or mellow have ads?

KyouStudy shows ads; mellow does not.

### Which is updated more often, KyouStudy or mellow?

KyouStudy ships an update weekly, and mellow weekly. Most recently, KyouStudy was updated on November 12, 2026 and mellow on November 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.*