# VALK Tools vs OpenSurvey3D

The clearest difference is iOS requirement: VALK Tools at 13.0 against OpenSurvey3D's 26.2. On price, update cadence, ads and in-app purchases there is nothing between them.

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

VALK Tools ships an update every 2 weeks, OpenSurvey3D every 3 weeks. The most recent releases landed on November 9, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | VALK Tools | OpenSurvey3D |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Size | 85 MB | 22 MB |
| Requires iOS | **13.0** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [ITRoots](https://appshunter.io/developer/1086447931) | [Laan Labs](https://appshunter.io/developer/310916919) |

## What reviewers say

### VALK Tools

[App page](https://appshunter.io/ios/app/valk-tools/id6754689250)

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

**In-app purchases:** none


### OpenSurvey3D

[App page](https://appshunter.io/ios/app/opensurvey3d/id6794840161)

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

**In-app purchases:** none


## Frequently asked questions

### Is VALK Tools free?

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

### Is OpenSurvey3D free?

OpenSurvey3D is free to download, with no in-app purchases.

### Do VALK Tools or OpenSurvey3D have ads?

Neither VALK Tools nor OpenSurvey3D shows ads.

### Which is updated more often, VALK Tools or OpenSurvey3D?

VALK Tools ships an update every 2 weeks, and OpenSurvey3D every 3 weeks. Most recently, VALK Tools was updated on November 9, 2026 and OpenSurvey3D on November 6, 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.*