# Bubble Level + Compass Pro — Watch-enabled Level & Compass

> Precise spirit level and compass with Apple Watch companion app. (iPhone/iPad app by Dimitrios Kechagias.)

- Source: https://appshunter.io/ios/app/bubble-level-plus-compass-pro/id988590222 (this page in markdown: same URL + `.md`)
- Developer: [Dimitrios Kechagias](https://appshunter.io/developer/970157964)
- Category: Utilities
- Price: $0.99 (on sale, was $1.99)
- Rating: 5.00/5 from 22 App Store ratings · 13 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 7 MB
- Languages: American English, French (France), German (Germany)
- Released: 2015-05-09
- Data updated: 2026-08-20
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/bubble-level-plus-compass-pro/id988590222/reviews.md

## What is Bubble Level + Compass Pro?

Bubble Level + Compass Pro combines a precise spirit level, compass, and Apple Watch companion app, so when your phone is placed somewhere hard to see its screen, you can still get live readings from your wrist. No more out-of-reach setups, and no more crouching.

Features:

• Bullseye level plus horizontal and vertical levels with 0.1 degree precision
• Bubble level units: Angle (degrees) or Incline/Slope (%)
• True and magnetic heading with direction text
• Magnetic declination
• Apple Watch companion app
• Gyro or accelerometer sensor mode
• Gyro calibration offset to compensate for camera bulge or uneven phone cases
• Pitch/Roll/Yaw rotation rate readouts
• Compass calibration status
• Red-light night mode

The tool is normally included in my astronomical app (Polar Scope Align Pro), but I decided to release it as a separate app because I could not find anything with the features I wanted on the app store. 

(A free ad-supported version is also available)

## Key features

- Bullseye, horizontal, and vertical levels
- 0.1-degree precision
- True and magnetic heading
- Apple Watch companion app
- Gyro or accelerometer sensor mode
- Red-light night mode

## Recent user reviews (10 of 13)

All indexed reviews: https://appshunter.io/ios/app/bubble-level-plus-compass-pro/id988590222/reviews.md

### 5/5 — A great help in setting up…

*2026-07-08*

A great help in setting up my Meade LX-65

### 5/5 — Excellent app

*2025-11-07*

I used it for Astronomy for rough location of sky objects (AZI and Alt). Getting both Direction and angle tilt up to 90 deg in one simple app like this was great news for me. It will be good if the device gives both readings for magnetic and true north on same screen. 
Now I’m updating my review after using it with Apple Watch. I’m very impressed with the functionality of reading the phone direction and level on the Watch. Your application is real piece of art and second to non in this area.

**Developer response:** Thank you. Hope the latest update makes it even better. If not, you can message me on the app support page to sort any issue.

### 5/5 — Excellent app

*2025-04-01*

I used it for Astronomy for rough location of sky objects (AZI and Alt). Getting both Direction and angle tilt up to 90 deg in one simple app like this was great news for me. It will be good if the device gives both readings for magnetic and true north on same screen.

### 5/5 — Works flawlessly

*2024-11-05*

After searching through a bunch of subscription based apps this is a refreshing break and works perfectly, both the level and the compass

### 5/5 — A great help in setting up…

*2023-09-17, version 1.9*

A great help in setting up my Meade LX-65

### 5/5 — Simple but elegant

*2023-07-09*

Great app that does what it says, does it well with elegance, and does NOT nag you especially when you’re working in the dark!

### 5/5 — Incredibly useful app

*2023-06-19*

I am constantly surprised at how often I use this app. Leveling my camper, checking boards,scope etc and the compass is accurate as well.
Easy to use. 5 star app

### 5/5 — Bubble Level + Compass Pro

*2023-06-06*

The best app I have found for this purpose, and I have tried quite a few.  Congrats to the authors!

### 5/5 — Excellent app

*2022-06-18*

I used it for Astronomy for rough location of sky objects (AZI and Alt). Getting both Direction and angle tilt up to 90 deg in one simple app like this was great news for me. It will be good if the device gives both readings for magnetic and true north on same screen.

### 5/5 — Clean. Easy. Functional.

*2022-06-10*

This app has a clean and simple UI. Additionally, the app serves its functional purpose superbly by providing precise measurements through an easy to read and straightforward interface. Making any changes to the settings is self explanatory. I can’t say much more regarding the efficacy and efficiency of this app as a whole. So KUDOS to you, Mr. Develper, on a job well done!!

## Frequently asked questions about Bubble Level + Compass Pro

### What is Bubble Level + Compass Pro?

Bubble Level + Compass Pro is a utility app that offers a precise spirit level and compass. It also includes an Apple Watch companion app for convenient readings from your wrist.

### What are the key features of Bubble Level + Compass Pro?

Key features include bullseye, horizontal, and vertical levels with 0.1-degree precision, true and magnetic heading, and a red-light night mode. It also supports gyro or accelerometer sensor modes.

### Does Bubble Level + Compass Pro work on Apple Watch?

Yes, Bubble Level + Compass Pro features an Apple Watch companion app, allowing you to get live readings directly from your wrist, which is useful when your phone's screen is not easily visible.

### What is the precision of the level feature?

The bullseye, horizontal, and vertical levels in Bubble Level + Compass Pro offer a precision of 0.1 degrees, ensuring accurate measurements for your tasks.

### Can I calibrate the compass in Bubble Level + Compass Pro?

Yes, the app provides compass calibration status and allows for gyro calibration offset to compensate for phone cases or uneven surfaces, ensuring more accurate readings.

### What devices is Bubble Level + Compass Pro compatible with?

Bubble Level + Compass Pro is compatible with iPhone, iPad, iPod, and Apple Watch devices.

### How often is Bubble Level + Compass Pro updated?

The latest version of Bubble Level + Compass Pro was released on March 11, 2026, indicating active development and updates.

### What is the user rating for Bubble Level + Compass Pro?

Bubble Level + Compass Pro has an excellent rating of 5.0 stars from 21 ratings, suggesting high user satisfaction with its performance and features.

## Version history (last 5 releases)

### 2.0 — 2026-03-11

Many improvements for v2.0:
• New Incline/Slope (%) mode.
• New Apple Watch app: more responsive display, plus compass, pitch/roll/yaw rotation rates, and incline mode.
• Improved settings screen.
• Added French/German language support.
Remember, the app never nags you with popups, so it gets very few ratings/reviews. Support it by rating it!

### 1.9 — 2023-07-08

Remember, the app tries to be nice and never nags you with popups (I hate those), so it gets very few ratings/reviews. Support it by rating it! 
What's new:
- Improved help with Table Of Contents.

### 1.8 — 2023-06-06

Remember, the app tries to be nice and never nags you with popups (I hate those), so it gets very few ratings/reviews. Support it by rating it! 
What's new:
- Gyro rotation rate function: measure instantaneous or cumulative rotation on 3 axes (pitch/yaw/roll).
- Show both true/geographic north heading, and magnetic north. Heading display accuracy increased to 0.5°.
- 5° tick marks added to compass.
- Reduced app size.

### 1.7 — 2020-10-30

Remember, the app tries to be nice and never nags you with popups (I hate those), so it gets very few ratings/reviews. Support it by rating it! 
What's new:
- Gyroscope calibration added in the settings.
- Non-retina option for watch graphics to increase the refresh rate.
- A small rename of the app to keep it consistent with the free version.

### 1.6 — 2020-08-05

Remember, the app tries to be nice and never nags you with popups (I hate those), so it gets very few ratings/reviews. Support it by rating it! 
What's new:
-Night mode (red color).
-Improved watch refresh rate.
-Layout adjustment and rotation fix for iPad.
-Some help text additions.

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## More apps by Dimitrios Kechagias

- [Polar Scope Align](https://appshunter.io/ios/app/polar-scope-align/id970157965)
- [Polar Scope Align Pro](https://appshunter.io/ios/app/polar-scope-align-pro/id970161373)
- [Xasteria: Astronomy Weather](https://appshunter.io/ios/app/xasteria-astronomy-weather/id985030722)
- [Polar Scope Align Pro Watch](https://appshunter.io/ios/app/polar-scope-align-pro-watch/id986082042)
- [Xasteria Plus - Astro Weather](https://appshunter.io/ios/app/xasteria-plus-astro-weather/id1053736323)

All apps by Dimitrios Kechagias: https://appshunter.io/developer/970157964

## Related topics

[dimitrios kechagias](https://appshunter.io/ios/topics/dimitrios-kechagias)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-20.*