# Pure Form Training vs Underground Lab US

The clearest difference is ads: Pure Form Training at none against Underground Lab US's shown. Pure Form Training also leads on iOS requirement (11.0 vs 15). 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.

## The numbers

| Metric | Pure Form Training | Underground Lab US |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Size | 65 MB | 92 MB |
| Requires iOS | **11.0** | 15 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Pure Form PFT Celina LLC](https://appshunter.io/developer/1765170097) | [PushPress, Inc.](https://appshunter.io/developer/688595778) |

## What reviewers say

### Pure Form Training

[App page](https://appshunter.io/ios/app/pure-form-training/id6670176142)

**Features:** macOS Compatibility

**In-app purchases:** none


### Underground Lab US

[App page](https://appshunter.io/ios/app/underground-lab-us/id6762464252)

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

**In-app purchases:** none


## Frequently asked questions

### Is Pure Form Training free?

Pure Form Training is free to download, with no in-app purchases.

### Is Underground Lab US free?

Underground Lab US is free to download, with no in-app purchases.

### Do Pure Form Training or Underground Lab US have ads?

Underground Lab US shows ads; Pure Form Training does not.

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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.*