# Bubble Level + Compass vs GLBViewer by YH

The clearest difference is iOS requirement: Bubble Level + Compass at 12.0 against GLBViewer by YH's 15.0. 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 | Bubble Level + Compass | GLBViewer by YH |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (35 ratings)](https://appshunter.io/ios/app/bubble-level-plus-compass/id1374372463/reviews)** | — |
| Number of ratings | **35** | — |
| Positive reviews | 90.5% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 4 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 18 MB | 13 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dimitrios Kechagias](https://appshunter.io/developer/970157964) | [Yihang Huang](https://appshunter.io/developer/1451896625) |

## What reviewers say

### Bubble Level + Compass

[App page](https://appshunter.io/ios/app/bubble-level-plus-compass/id1374372463)

This utility app provides a precise bubble level for horizontal, vertical, and surface angle measurements, along with a true-north compass. It offers advanced calibration options and works on iOS devices. A Pro version is available for additional features.

**Highlights:** Horizontal and vertical level measurements, Surface angle readings, True north compass, Advanced calibration, Magnetic declination reading, Accelerometer/Gyro switch

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

**In-app purchases:** none


### GLBViewer by YH

[App page](https://appshunter.io/ios/app/glbviewer-by-yh/id6818788518)

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

**In-app purchases:** none


## Frequently asked questions

### Is Bubble Level + Compass free?

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

### Is GLBViewer by YH free?

GLBViewer by YH is free to download, with no in-app purchases.

### Do Bubble Level + Compass or GLBViewer by YH have ads?

Both Bubble Level + Compass and GLBViewer by YH show 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.*