# Сиалавто Expert vs SD

The clearest difference is update cadence: SD at daily against Сиалавто Expert's every 6 months. Сиалавто Expert's advantage is iOS requirement (13.4 vs 16.4). 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.

Сиалавто Expert ships an update every 6 months, SD daily. The most recent releases landed on October 12, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Сиалавто Expert | SD |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Daily** |
| Size | 33 MB | 51 MB |
| Requires iOS | **13.4** | 16.4 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [MAIKAR, OOO](https://appshunter.io/developer/1579842475) | [Alexander Zaitsev](https://appshunter.io/developer/1459743290) |

## What reviewers say

### Сиалавто Expert

[App page](https://appshunter.io/ios/app/expert/id1607338505)

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

**In-app purchases:** none


### SD

[App page](https://appshunter.io/ios/app/sd-assist/id6811581475)

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

**In-app purchases:** none


## Frequently asked questions

### Is Сиалавто Expert free?

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

### Is SD free?

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

### Do Сиалавто Expert or SD have ads?

Neither Сиалавто Expert nor SD shows ads.

### Which is updated more often, Сиалавто Expert or SD?

Сиалавто Expert ships an update every 6 months, and SD daily. Most recently, Сиалавто Expert was updated on October 12, 2026 and SD on October 4, 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.*