# the J.Soo vs zzim

The clearest difference is update cadence: zzim at every 9 days against the J.Soo's every 7 months. zzim also leads on iOS requirement (11.0 vs 16.0). 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.

the J.Soo ships an update every 7 months, zzim every 9 days. The most recent releases landed on October 24, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | the J.Soo | zzim |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 9 days** |
| Size | 74 MB | 38 MB |
| Requires iOS | 16.0 | **11.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Suyoun Song](https://appshunter.io/developer/1345268293) | [Juwon Kang](https://appshunter.io/developer/1455207250) |

## What reviewers say

### the J.Soo

[App page](https://appshunter.io/ios/app/the-jsoo/id1345268294)

**Features:** Vision Pro support

**In-app purchases:** none


### zzim

[App page](https://appshunter.io/ios/app/zzim/id1661423563)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is the J.Soo free?

the J.Soo is free to download, with no in-app purchases.

### Is zzim free?

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

### Do the J.Soo or zzim have ads?

Neither the J.Soo nor zzim shows ads.

### Which is updated more often, the J.Soo or zzim?

the J.Soo ships an update every 7 months, and zzim every 9 days. Most recently, the J.Soo was updated on October 24, 2026 and zzim on October 10, 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.*