# Bubble Level + Compass vs Robotics NLK

The clearest difference is in-app purchases: Bubble Level + Compass at none against Robotics NLK's 1. Bubble Level + Compass also leads on iOS requirement (12.0 vs 15). Robotics NLK's advantage is ads (none vs shown). On price, update cadence and device support there is nothing between them.

Both are free to download. Robotics NLK sells 1 one-off in-app purchase. Bubble Level + Compass asks for nothing beyond the download.

Bubble Level + Compass ships an update every 4 months, Robotics NLK every 2 months. The most recent releases landed on November 13, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Bubble Level + Compass | Robotics NLK |
| --- | --- | --- |
| 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** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Free with in-app purchases | — |
| Size | 18 MB | 372 MB |
| Requires iOS | **12.0** | 15 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dimitrios Kechagias](https://appshunter.io/developer/970157964) | [Ievgen Naloiko](https://appshunter.io/developer/978241268) |

## 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


### Robotics NLK

[App page](https://appshunter.io/ios/app/robotics-nlk/id6739772019)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Private Mode - No Event Logging | $9.99 | one-time |


## Frequently asked questions

### Is Bubble Level + Compass free?

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

### Is Robotics NLK free?

Robotics NLK is free to download, with in-app purchases available.

### Do Bubble Level + Compass or Robotics NLK have ads?

Bubble Level + Compass shows ads; Robotics NLK does not.

### Which is updated more often, Bubble Level + Compass or Robotics NLK?

Bubble Level + Compass ships an update every 4 months, and Robotics NLK every 2 months. Most recently, Bubble Level + Compass was updated on November 13, 2026 and Robotics NLK on November 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.*