# SIAM Pro vs Pikcheck

The clearest difference is ads: SIAM Pro at none against Pikcheck's shown. SIAM Pro also leads on iOS requirement (15.6 vs 26.0). Pikcheck's advantage is update cadence (every 3 weeks vs every 2 months). On price, 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.

SIAM Pro ships an update every 2 months, Pikcheck every 3 weeks. The most recent releases landed on October 7, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | SIAM Pro | Pikcheck |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 81 MB | 6 MB |
| Requires iOS | **15.6** | 26.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [SIAM INDUSTRIA DE AUTOMACAO E MONITORAMENTO LTDA.](https://appshunter.io/developer/1346976542) | [yuya kanbetsunawa](https://appshunter.io/developer/1597026161) |

## What reviewers say

### SIAM Pro

[App page](https://appshunter.io/ios/app/siam-pro/id1560834841)

**Features:** macOS Compatibility

**In-app purchases:** none


### Pikcheck

[App page](https://appshunter.io/ios/app/pikcheck/id6758877717)

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

**In-app purchases:** none


## Frequently asked questions

### Is SIAM Pro free?

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

### Is Pikcheck free?

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

### Do SIAM Pro or Pikcheck have ads?

Pikcheck shows ads; SIAM Pro does not.

### Which is updated more often, SIAM Pro or Pikcheck?

SIAM Pro ships an update every 2 months, and Pikcheck every 3 weeks. Most recently, SIAM Pro was updated on October 7, 2026 and Pikcheck on October 28, 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.*