# S vs JustCha

The clearest difference is in-app purchases: S at none against JustCha's 2. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. JustCha sells 2 in-app purchases, starting at $3.99 per month. S asks for nothing beyond the download.

S ships an update every 3 weeks, JustCha every 9 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | S | JustCha |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 9 days** |
| Size | 70 MB | 68 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Sinfinity](https://appshunter.io/developer/1804883904) | [QUYEN NGUYEN ANH](https://appshunter.io/developer/6779050527) |

## What reviewers say

### S

[App page](https://appshunter.io/ios/app/s-car-wash/id6743844809)

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

**In-app purchases:** none


### JustCha

[App page](https://appshunter.io/ios/app/justcha/id6779050525)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium hàng tháng | $3.99 | per month |
| Premium hàng năm | $29.99 | per year |


## Frequently asked questions

### Is S free?

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

### Is JustCha free?

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

### Do S or JustCha have ads?

Neither S nor JustCha shows ads.

### Which is updated more often, S or JustCha?

S ships an update every 3 weeks, and JustCha every 9 days. Most recently, S was updated on October 30, 2026 and JustCha on October 31, 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.*