# App4SHM vs GPF Bubble Level

The clearest difference is iOS requirement: App4SHM at 13.0 against GPF Bubble Level's 18.6. 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.

## The numbers

| Metric | App4SHM | GPF Bubble Level |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | — |
| Size | 27 MB | 0 MB |
| Requires iOS | **13.0** | 18.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [COFAC](https://appshunter.io/developer/962813435) | [Gian Paolo Fontani](https://appshunter.io/developer/1866631629) |

## What reviewers say

### App4SHM

[App page](https://appshunter.io/ios/app/app4shm/id6453887192)

**In-app purchases:** none


### GPF Bubble Level

[App page](https://appshunter.io/ios/app/gpf-bubble-level/id6759933601)

**In-app purchases:** none


## Frequently asked questions

### Is App4SHM free?

App4SHM is free to download, with no in-app purchases.

### Is GPF Bubble Level free?

GPF Bubble Level is free to download, with no in-app purchases.

### Do App4SHM or GPF Bubble Level have ads?

Neither App4SHM nor GPF Bubble Level shows ads.

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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.*