# Secret Control vs OpenBioMaps Forms

The clearest difference is update cadence: OpenBioMaps Forms at weekly against Secret Control's every 2 months. Secret Control's advantage is iOS requirement (12.0 vs 17.0). 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.

Secret Control ships an update every 2 months, OpenBioMaps Forms weekly. The most recent releases landed on September 23, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Secret Control | OpenBioMaps Forms |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Size | 8 MB | 45 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Secret Control GPS Kft.](https://appshunter.io/developer/1159615634) | [ECOLLAB](https://appshunter.io/developer/1777494456) |

## What reviewers say

### Secret Control

[App page](https://appshunter.io/ios/app/secret-control/id1447252630)

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

**In-app purchases:** none


### OpenBioMaps Forms

[App page](https://appshunter.io/ios/app/openbiomaps-forms/id6737706732)

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

**In-app purchases:** none


## Frequently asked questions

### Is Secret Control free?

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

### Is OpenBioMaps Forms free?

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

### Do Secret Control or OpenBioMaps Forms have ads?

Neither Secret Control nor OpenBioMaps Forms shows ads.

### Which is updated more often, Secret Control or OpenBioMaps Forms?

Secret Control ships an update every 2 months, and OpenBioMaps Forms weekly. Most recently, Secret Control was updated on September 23, 2026 and OpenBioMaps Forms on September 12, 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.*