# OpenBioMaps Forms vs Voltcraft VC

The clearest difference is update cadence: OpenBioMaps Forms at weekly against Voltcraft VC's every 2 months. Voltcraft VC's advantage is iOS requirement (11.0 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.

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

## The numbers

| Metric | OpenBioMaps Forms | Voltcraft VC |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 months |
| Size | 45 MB | 13 MB |
| Requires iOS | 17.0 | **11.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [ECOLLAB](https://appshunter.io/developer/1777494456) | [CEI Conrad Electronic International (HK) Limited](https://appshunter.io/developer/756357900) |

## What reviewers say

### OpenBioMaps Forms

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

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

**In-app purchases:** none


### Voltcraft VC

[App page](https://appshunter.io/ios/app/voltcraft-vc/id6740763421)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OpenBioMaps Forms free?

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

### Is Voltcraft VC free?

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

### Do OpenBioMaps Forms or Voltcraft VC have ads?

Neither OpenBioMaps Forms nor Voltcraft VC shows ads.

### Which is updated more often, OpenBioMaps Forms or Voltcraft VC?

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