# Hummingblocks vs mellow

The clearest difference is in-app purchases: Hummingblocks at none against mellow's 2. Hummingblocks also leads on device support (3 vs 1). On price, update cadence, ads and iOS requirement there is nothing between them.

Both are free to download. mellow sells 2 in-app purchases, starting at $7.99 per month. Hummingblocks asks for nothing beyond the download.

Hummingblocks ships an update every 4 days, mellow weekly. The most recent releases landed on October 8, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Hummingblocks | mellow |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Weekly |
| Size | 531 MB | 118 MB |
| Requires iOS | **15.6** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Juhwan Lim](https://appshunter.io/developer/1841180629) | [Nullge](https://appshunter.io/developer/1710419601) |

## What reviewers say

### Hummingblocks

[App page](https://appshunter.io/ios/app/hummingblocks/id6754211788)

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

**In-app purchases:** none


### mellow

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

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| mellow 멤버십 월간 | $7.99 | per month |
| mellow 멤버십 연간 | $59.99 | per year |


## Frequently asked questions

### Is Hummingblocks free?

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

### Is mellow free?

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

### Do Hummingblocks or mellow have ads?

Neither Hummingblocks nor mellow shows ads.

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

Hummingblocks ships an update every 4 days, and mellow weekly. Most recently, Hummingblocks was updated on October 8, 2026 and mellow on October 14, 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.*