# M2M Data Controller vs Precise Bubble Level

The clearest difference is in-app purchases: M2M Data Controller at none against Precise Bubble Level's 3. M2M Data Controller also leads on ads (none vs shown) and iOS requirement (11.0 vs 15.1). Precise Bubble Level's advantage is update cadence (fortnightly vs every 3 months). On price and device support there is nothing between them.

Both are free to download. Precise Bubble Level sells 3 in-app purchases, starting at $0.99 per 7 days. M2M Data Controller asks for nothing beyond the download.

M2M Data Controller ships an update every 3 months, Precise Bubble Level fortnightly. The most recent releases landed on October 4, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | M2M Data Controller | Precise Bubble Level |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Fortnightly** |
| Size | 71 MB | 44 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [M2M DATA GROUP LIMITED](https://appshunter.io/developer/1425847555) | [Turan Hurkan Ergunsu](https://appshunter.io/developer/1842106410) |

## What reviewers say

### M2M Data Controller

[App page](https://appshunter.io/ios/app/m2m-data-controller/id1590594616)

**Features:** macOS Compatibility

**In-app purchases:** none


### Precise Bubble Level

[App page](https://appshunter.io/ios/app/precise-bubble-level/id6762563537)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | per 7 days |
| Remove Ads | $2.99 | per month |
| Remove Ads | $17.99 | per year |


## Frequently asked questions

### Is M2M Data Controller free?

M2M Data Controller is free to download, with no in-app purchases.

### Is Precise Bubble Level free?

Precise Bubble Level is free to download, with in-app purchases available.

### Do M2M Data Controller or Precise Bubble Level have ads?

Precise Bubble Level shows ads; M2M Data Controller does not.

### Which is updated more often, M2M Data Controller or Precise Bubble Level?

M2M Data Controller ships an update every 3 months, and Precise Bubble Level fortnightly. Most recently, M2M Data Controller was updated on October 4, 2026 and Precise Bubble Level on October 8, 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.*