# SIRBX vs Zelter

The clearest difference is update cadence: Zelter at weekly against SIRBX's every 6 weeks. Zelter also leads on iOS requirement (12.0 vs 15.6). 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.

SIRBX ships an update every 6 weeks, Zelter weekly. The most recent releases landed on October 9, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | SIRBX | Zelter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/zelter/id6447624889/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Weekly** |
| Monetization | — | Free |
| Size | 46 MB | 55 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Yaser Hassan](https://appshunter.io/developer/1681755870) | [Mohammed Almull](https://appshunter.io/developer/1682025799) |

## What reviewers say

### SIRBX

[App page](https://appshunter.io/ios/app/sirbx/id6447558342)

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

**In-app purchases:** none


### Zelter

[App page](https://appshunter.io/ios/app/zelter/id6447624889)

A Saudi tech app offering car services wherever you are. It uses advanced technology and skilled technicians for car maintenance and inspection. Get the best oil for your car with just a tap, saving you time and effort.

**Highlights:** On-demand car services, Expert technicians, Car inspection, Oil change services, Time and effort saving

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SIRBX free?

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

### Is Zelter free?

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

### Do SIRBX or Zelter have ads?

Neither SIRBX nor Zelter shows ads.

### Which is updated more often, SIRBX or Zelter?

SIRBX ships an update every 6 weeks, and Zelter weekly. Most recently, SIRBX was updated on October 9, 2026 and Zelter on October 3, 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.*