# UCL App vs Bubble Level

The clearest difference is in-app purchases: UCL App at none against Bubble Level's 3. UCL App also leads on device support (3 vs 1) and iOS requirement (8.0 vs 17.0). Bubble Level's advantage is update cadence (monthly vs every 10 months). On price and ads there is nothing between them.

Both are free to download. Bubble Level sells 3 in-app purchases, starting at $4.99 per 7 days. UCL App asks for nothing beyond the download.

UCL App ships an update every 10 months, Bubble Level monthly. The most recent releases landed on October 3, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | UCL App | Bubble Level |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 months | **Monthly** |
| Size | 26 MB | 5 MB |
| Requires iOS | **8.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Umwelt Control Labor](https://appshunter.io/developer/1001561277) | [Phuc Pham](https://appshunter.io/developer/1893081423) |

## What reviewers say

### UCL App

[App page](https://appshunter.io/ios/app/ucl-app/id1001561278)

**Features:** macOS Compatibility

**In-app purchases:** none


### Bubble Level

[App page](https://appshunter.io/ios/app/bubble-level-angle-finder/id6772273713)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Bubble Gauge Weekly | $4.99 | per 7 days |
| Slope Finder Yearly | $24.99 | per year |
| Angle Meter, Pay Once | $49.99 | one-time |


## Frequently asked questions

### Is UCL App free?

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

### Is Bubble Level free?

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

### Do UCL App or Bubble Level have ads?

Neither UCL App nor Bubble Level shows ads.

### Which is updated more often, UCL App or Bubble Level?

UCL App ships an update every 10 months, and Bubble Level monthly. Most recently, UCL App was updated on October 3, 2026 and Bubble Level on October 13, 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.*