1. Home
  2. 🔧 Utilities
  3. Bubble Level
Bubble Level: AR, Angle Finder

Bubble Level: AR, Angle Finder

Spirit Level & Clinometer Tool

682 ratings
28 reviews
With Ads
🔧 Utilities
📊 Productivity
Free
In-App PurchasesWith Ads

Details

  • Released
  • Updated
  • November 7, 2021
  • July 29, 2026

Features

Developer

Jens Rieckhof
✨Promote your app ✨
Bubble Level: AR, Angle Finder screenshot #1 for iPhone
Bubble Level: AR, Angle Finder screenshot #2 for iPhone
Bubble Level: AR, Angle Finder screenshot #3 for iPhone
Bubble Level: AR, Angle Finder screenshot #4 for iPhone
Bubble Level: AR, Angle Finder screenshot #5 for iPhone
Bubble Level: AR, Angle Finder screenshot #6 for iPhone
iphone
ipad
🧾$1.99 - $29.99
In-App Purchase↘︎
📌Ready
Reviews summary↘︎
⭐28
Reviews↘︎
📝40+ tags
Tags↘︎
🔄6+ apps
Alternatives↘︎
❓5 answered
FAQ↘︎
📦~ in 1 week
Updates frequency↘︎
🖼️Get Icon
Icons↘︎

About

This app transforms your phone into a precise leveling tool. It offers accurate angle measurement, inclination detection, and augmented reality features for DIY and professional use. Calibration is simple and quick.

✓Ultra-precise angle measurement
✓Inclination and slope meter
✓Augmented reality ruler and protractor
✓Effortless one-touch calibration
✓Clear and easy-to-read display
✓User-friendly interface
Show original description

What users say

Summarized from real user reviews of Bubble Level. Based on 682 reviews and a 4.5/5 average, it highlights the 3 positives and 4 negatives reviewers mention most about this Utilities app.

Positive things

  • 👍Simple and easy to use
  • 🔍Accurate angle measurements
  • 🛠️Helpful for various tasks (telescopes, leveling, etc.)

Negative things

  • 🤑Expensive ad removal
  • 🤖Unreliable calibration
  • 💤Constant interruptions and ads
  • 🚫Unusable due to ads
See all reviews

What's New in Bubble Level

1.526

July 29, 2026

New angle editor for stored angles. Apple Watch Support is here! - Live angle readings on your wrist — mirrors your iPhone's current mode and accent color in real time - 1D mode: full-screen artificial horizon tilts with the angle; display full degrees, slope %, or near-delta - 2D mode: dual-axis crosshair with a yaw compass ring shows tilt on both axes simultaneously - Lock a reading or save an angle directly from your Watch — last reading stays on screen even if iPhone connection drops - Connection indicator shows pairing, reachability, and app status at a glance Enjoying the app? Leaving a quick review helps us keep improving and reach more people who need it!

More

Subscription plans

Spirit Level Premium – Annual

Full access to AR, clinometer & bubble level

$14.991 Year
7 Days trial
Price Updates
August 3, 2026→$14.99
February 13, 2026→$14.99
December 30, 2025→$8.99
July 23, 2025→$8.99
How to cancel Bubble Level subscription ⁉️
4

In-App Purchases

$1.99

All features - No ads

Unlock all app features and removes the ads.

User reviews

Most RecentHighest RatedLowest Rated

Not good

Not accurate, not repeatable. And they want money for this?
cfo0321cfo0321

Response from developer

Dear customer, the app is - if properly handled - precise down to 0.01°. For calibration to work, align the phone with a vertical or horizontal surface, let it settle and tap the calibrate button (scope icon). Them you are good to go and can achieve the highest degree of precision. And yes for an Advanced Bubble Level Tool including a fully fletched AR-Measurement Tool we do charge you - but less than our competitors are.

Not accurate

No where near accurate and can’t seem to calibrate the level straight before u measure a angle so totally out. Shame
GfddvbhjhbvvkingwilsonGfddvbhjhbvvkingwilson

Приложение не рабочее,

Просто картинка
Оставлю здесьОставлю здесь

Response from developer

Thank you for your feedback. What exactly isn't working properly?

Update deserves 1 star

You absolutely know why you’re getting 1 star after the most recent update. Greedy developer!!
Quack1911Quack1911

Response from developer

Hi, developing apps in the current highly competitive environment is challenging for solo developers and requires some form of compensation. You wouldn't walk into a super market and expect things to be free, right? The core features of the app remain free to use.

Use to work…

Use to work fine but now I cannot get it to work. Not sure what kind of PHD I need to use this but is a level is should be very easy.
JacobeCJacobeC

Response from developer

Hi, in case you are addressing the calibration feature. Simple approach one of the cardinal angles, let the device settle for a while and hit the calibration button (scope symbol). From thereon, if you used a properly aligned reference the app will be good to go for future uses.

See 23 more reviews

Developer apps

Bubble Shooter Fun - Match 3
Bubble Shooter Fun - Match 3

Relaxing Arcade Challenge

🎮 Games

(276)

Free
In-App PurchasesWith Ads
Measure Angles & Bubble Level
Measure Angles & Bubble Level

Protractor, Ruler, Compass

📊 Productivity

(45)

Free
In-App PurchasesWith Ads
Protractor & Bubble Level PRO
Protractor & Bubble Level PRO

Measure Angles - Ruler Compass

📊 Productivity

(4)

$2.99
Уровень + Угломер
Уровень + Угломер

Измерение углов и уклонов

🔧 Utilities

(32)

Free
In-App PurchasesWith Ads
Rechner Besoldung Bund
Rechner Besoldung Bund

by Jens Rieckhof

💰 Finance
Free
See developer apps

User experience

🐞

Reported Bugs

2 issues

App crashes on launch

Bug

Measurement point behaves erratically

Bug
✨

Requested Features

2 requests

Ability to calibrate the app

Feature

Option to change the display color

Feature

FAQ

What does the Bubble Level app do?

This app transforms your smartphone into a highly accurate bubble level, inclinometer, and ruler. It allows you to measure the level and inclination of surfaces with precision, and includes augmented reality features for length measurement.

What are the key features of this leveling app?

Key features include ultra-precise measurements to the nearest tenth of a degree, effortless one-touch calibration, a clear visual display for easy reading, and a versatile toolset for both DIY and professional jobs. It also offers an AR protractor and ruler.

How do I calibrate the app for accurate measurements?

Calibration is simple: align your phone with a known level horizontal surface or a true vertical edge, and then press the calibration button. This process ensures your measurements are always reliable and accurate.

Who is this app designed for?

The app is ideal for DIY aficionados, professional builders, carpenters, plumbers, and anyone who needs to ensure surfaces are level or measure angles accurately. It's also useful for recreational activities requiring precise setup.

Is this app free to use?

The app is free to download and use, offering core leveling and measurement functionalities. It also includes in-app purchases, which may unlock additional features or enhance the user experience.