# Smartdog vs SOnIA

The clearest difference is ads: Smartdog at none against SOnIA's shown. SOnIA's advantage is update cadence (every 3 months vs every 13 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Smartdog ships an update every 13 months, SOnIA every 3 months. The most recent releases landed on October 2, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Smartdog | SOnIA |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 13 months | **Every 3 months** |
| Size | 36 MB | 59 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [ecodata solutions GmbH](https://appshunter.io/developer/1691270662) | [Markus Otto Ludwig Berger](https://appshunter.io/developer/1750511405) |

## What reviewers say

### Smartdog

[App page](https://appshunter.io/ios/app/smartdog/id1526108644)

**Features:** macOS Compatibility

**In-app purchases:** none


### SOnIA

[App page](https://appshunter.io/ios/app/sonia/id6503953294)

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

**In-app purchases:** none


## Frequently asked questions

### Is Smartdog free?

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

### Is SOnIA free?

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

### Do Smartdog or SOnIA have ads?

SOnIA shows ads; Smartdog does not.

### Which is updated more often, Smartdog or SOnIA?

Smartdog ships an update every 13 months, and SOnIA every 3 months. Most recently, Smartdog was updated on October 2, 2026 and SOnIA on October 8, 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.*