# Mobilecheck by bolttech vs MySii

The clearest difference is update cadence: MySii at monthly against Mobilecheck by bolttech's every 3 months. 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.

Mobilecheck by bolttech ships an update every 3 months, MySii monthly. The most recent releases landed on September 10, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Mobilecheck by bolttech | MySii |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Size | 27 MB | 249 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Bolttech Poland Sp. z o.o.](https://appshunter.io/developer/1353770575) | [Sii sp. z o.o.](https://appshunter.io/developer/961065482) |

## What reviewers say

### Mobilecheck by bolttech

[App page](https://appshunter.io/ios/app/mobilecheck-by-bolttech/id1567859288)

**Features:** macOS Compatibility

**In-app purchases:** none


### MySii

[App page](https://appshunter.io/ios/app/mysii/id6445954726)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Mobilecheck by bolttech free?

Mobilecheck by bolttech is free to download, with no in-app purchases.

### Is MySii free?

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

### Do Mobilecheck by bolttech or MySii have ads?

Neither Mobilecheck by bolttech nor MySii shows ads.

### Which is updated more often, Mobilecheck by bolttech or MySii?

Mobilecheck by bolttech ships an update every 3 months, and MySii monthly. Most recently, Mobilecheck by bolttech was updated on September 10, 2026 and MySii on September 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.*