# On vs SinaLu

The clearest difference is update cadence: On at every 5 days against SinaLu's every 5 weeks. 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.

On ships an update every 5 days, SinaLu every 5 weeks. The most recent releases landed on September 29, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | On | SinaLu |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 5 weeks |
| Size | 408 MB | 133 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Luana Thomas](https://appshunter.io/developer/1688608260) | [Fernanda Uberti](https://appshunter.io/developer/1839049760) |

## What reviewers say

### On

[App page](https://appshunter.io/ios/app/on-key/id6470926583)

**Features:** macOS Compatibility

**In-app purchases:** none


### SinaLu

[App page](https://appshunter.io/ios/app/sinalu/id6752356555)

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

**In-app purchases:** none


## Frequently asked questions

### Is On free?

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

### Is SinaLu free?

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

### Do On or SinaLu have ads?

Neither On nor SinaLu shows ads.

### Which is updated more often, On or SinaLu?

On ships an update every 5 days, and SinaLu every 5 weeks. Most recently, On was updated on September 29, 2026 and SinaLu on October 1, 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.*