# Bubble Level: AR, Angle Finder — Spirit Level & Clinometer Tool > Precision bubble level, inclinometer, and AR ruler for accurate surface measurements. (iPhone/iPad app by Jens Rieckhof.) - Source: https://appshunter.io/ios/app/bubble-level-ar-angle-finder/id1594066382 (this page in markdown: same URL + `.md`) - Developer: [Jens Rieckhof](https://appshunter.io/developer/354266124) - Category: Utilities, Productivity - Price: Free with in-app purchases - Rating: 4.50/5 from 693 App Store ratings · 28 written reviews indexed - Age rating: 4+ - Requires: iOS 16.6 · 39 MB - Languages: American English, Arabic, Danish, Dutch, French (France), German (Germany), Hindi, Indonesian, Italian, Japanese and 10 more - Released: 2021-11-07 - Data updated: 2026-08-24 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/bubble-level-ar-angle-finder/id1594066382/reviews.md ## What is Bubble Level? Transform Your Phone into a Precision Leveling Tool! Over 450K users - 4.5 Star Average Rating Introducing the Super-Easy Level: Turn your device into a highly accurate bubble level (spirit level) with ease. Ideal for both DIY aficionados and professional builders, our app delivers unparalleled precision for any leveling task. Why Choose Super-Easy Level? Versatile Measurement Tools: Not only can you check the level and inclination of surfaces, but with our camera integration, measuring lengths becomes a breeze. Augmented Reality Features: Equipped with an augmented reality ruler and protractor for cutting-edge measurement accuracy. Simplicity at Its Best: Enjoy a user-friendly interface that makes navigation a piece of cake on any smartphone or tablet. Now on Apple Watch: Angle measurements appear live on your wrist. The Watch app mirrors your iPhone's mode and accent color in real time. In 1D mode, a full-screen artificial horizon tilts with your measured angle — choose degrees, slope %, or near-delta. In 2D mode, a dual-axis crosshair with a yaw compass ring tracks tilt on both axes simultaneously. Lock readings or save angles directly from your Watch; the last reading stays on screen even if the iPhone connection drops. Key Features: Ultra-Precise: Measures angles to the nearest tenth of a degree. Effortless Calibration: Simple one-touch calibration keeps accuracy at your fingertips. Clear Visual Display: Our interface is designed for clarity, ensuring your measurements are easy to read at a glance. Robust Toolset: Whether it's a quick DIY project or a professional job, our app is up to the task. Get Started in Seconds: Align your phone with a known level or vertical edge. Press the calibration button. Done! Elevate your DIY and professional projects with Super-Easy Level — download now and level up your precision game! Features: ◉ Accurate measuring to one tenth of a degree. ◉ Super easy angle calibration and handling. ◉ Precise and reliable measurements ◉ Ability to measure inclination/slope ◉ Easy to read display ◉ Calibration function for even more accurate results ◉ User-friendly interface and can be used on any smartphone or tablet. ◉ Apple Watch support — live angle readings, lock & save from your wrist. How to calibrate: ◉ Align the phone with a level or vertical edge and hit the calibration button. ◉ That's it. Terms of use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ## Key features - 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 ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Spirit Level Premium – Annual | $14.99 | per year | | Spirit Level Premium – Monthly | $2.99 | per month | | Bubble Level Premium - Monthly | $5.99 | per month | | Bubble Level Premium - Annual | $19.99 | per year | | Bubble Level Premium - Weekly | $2.99 | per 7 days | | Premium - Weekly Plan | $1.99 | per 7 days | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | All features - No ads | $1.99 | one-time | | Bubble Level PREMIUM Lifetime | $19.99 | one-time | | Bubble Level - Lifetime Premium | $29.99 | one-time | | Discount Lifetime Premium | $14.99 | one-time | | Unlock all AR features | $5.99 | one-time | ## What do users think of Bubble Level? Overall sentiment: negative **Pros** - 👍 Simple and easy to use - 🔍 Accurate angle measurements - 🛠️ Helpful for various tasks (telescopes, leveling, etc.) **Cons** - 🤑 Expensive ad removal - 🤖 Unreliable calibration - 💤 Constant interruptions and ads - 🚫 Unusable due to ads **Commonly reported bugs** - App crashes on launch - Measurement point behaves erratically **Most requested features** - Ability to calibrate the app - Option to change the display color ## Recent user reviews (10 of 28) All indexed reviews: https://appshunter.io/ios/app/bubble-level-ar-angle-finder/id1594066382/reviews.md ### 1/5 — Not good *2026-07-09* Not accurate, not repeatable. And they want money for this? **Developer response:** 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. ### 1/5 — Not accurate *2026-03-06, version 1.500* No where near accurate and can’t seem to calibrate the level straight before u measure a angle so totally out. Shame ### 1/5 — Приложение не рабочее, *2026-02-04* Просто картинка **Developer response:** Thank you for your feedback. What exactly isn't working properly? ### 1/5 — Update deserves 1 star *2025-12-28* You absolutely know why you’re getting 1 star after the most recent update. Greedy developer!! **Developer response:** 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. ### 1/5 — Use to work… *2025-08-29* 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. **Developer response:** 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. ### 5/5 — Flawless Free App *2025-08-28, version 1.382* This app helps me get my iPad completely straight and level to watch when it’s on a wobbly tryone holder never let me down yet thanks ### 5/5 — Great tool *2025-08-11* I use the bubble level for my telescopes. It’s accurate and is very convenient. **Developer response:** Hi, thank you for your friendly feedback and for sharing your use case. ### 1/5 — Not able to calibrate *2025-03-29* Tried the free version but wanted to calibrate it , button was locked as it appears to be part of the premium version. So I made the purchase….low and behold no more adds and also NO calibration button… Can’t contact support on their site since they have blocked all inquiries due to spamming… Now I have a useless app …. Do not waste your money or time on this…. ### 1/5 — Funktioniert nicht richtig *2025-01-28, version 1.37* Ich kann das iPhone hin und her drehen aber der Punkt zum ausmessen geht und kommt wie er will. Es gibt diesbezüglich keine Einstellungmöglichkeit ### 1/5 — Advertising is horrible *2025-01-20, version 1.34* No ## Frequently asked questions about Bubble Level ### 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. ## Version history (last 5 releases) ### 1.532 — 2026-08-20 Improved measurement precision and responsiveness. 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 colour 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! ### 1.530 — 2026-08-14 Improved measurement precision and responsiveness. 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! ### 1.529 — 2026-08-10 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 colour 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! ### 1.527 — 2026-08-06 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! ### 1.526 — 2026-07-29 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! ## Apps similar to Bubble Level | App | Rating | Price | Category | | --- | --- | --- | --- | | [Measure Angles - Bubble Level](https://appshunter.io/ios/app/measure-angles-bubble-level/id458980311) | 4.2 (1,969) | Free | Utilities | | [ToolBox: AR Ruler, Level Tool](https://appshunter.io/ios/app/toolbox-ar-ruler-level-tool/id1349659723) | 4.4 (1,015) | Free | Utilities | | [Bubble Level for iPhone](https://appshunter.io/ios/app/bubble-level-for-iphone/id465613917) | 4.6 (111,638) | Free | Utilities | | [Tape Measure & Ruler Арр](https://appshunter.io/ios/app/tape-measure-and-ruler/id1453537222) | 4.2 (4,291) | Free | Utilities | | [Bubble Level Tool - Digital](https://appshunter.io/ios/app/bubble-level-tool-digital/id1662018802) | 4.4 (2,456) | Free | Utilities | | [Measure](https://appshunter.io/ios/app/measure/id1383426740) | 3.1 (1,569) | Free | Utilities | ## More apps by Jens Rieckhof - [Bubble Shooter Fun - Match 3](https://appshunter.io/ios/app/bubble-shooter-fun-match-3/id413895698) - [Measure Angles & Bubble Level](https://appshunter.io/ios/app/measure-angles-and-bubble-level/id1484113520) - [Protractor & Bubble Level PRO](https://appshunter.io/ios/app/protractor-and-bubble-level-pro/id1490701619) - [Bubble Level + Spirit Level](https://appshunter.io/ios/app/bubble-level-plus-spirit-level/id1547834136) - [Rechner Besoldung Bund](https://appshunter.io/ios/app/rechner-besoldung-bund/id1602080342) All apps by Jens Rieckhof: https://appshunter.io/developer/354266124 ## Related topics [degree finder](https://appshunter.io/ios/topics/degree-finder) · [degree finder angle](https://appshunter.io/ios/topics/degree-finder-angle) · [angle gauge](https://appshunter.io/ios/topics/angle-gauge) · [free angle measure](https://appshunter.io/ios/topics/free-angle-measure) · [degree angle](https://appshunter.io/ios/topics/degree-angle) · [slope finder](https://appshunter.io/ios/topics/slope-finder) · [angle finder app](https://appshunter.io/ios/topics/angle-finder-app) · [measure degrees](https://appshunter.io/ios/topics/measure-degrees) · [degree level](https://appshunter.io/ios/topics/degree-level) · [tilt meter](https://appshunter.io/ios/topics/tilt-meter) · [angle level](https://appshunter.io/ios/topics/angle-level) · [angle reader](https://appshunter.io/ios/topics/angle-reader) · [angle finder](https://appshunter.io/ios/topics/angle-finder) · [digital protractor](https://appshunter.io/ios/topics/digital-protractor) · [digital level](https://appshunter.io/ios/topics/digital-level) · [angle finder triangle](https://appshunter.io/ios/topics/angle-finder-triangle) · [angle measure tool](https://appshunter.io/ios/topics/angle-measure-tool) · [free angle finder](https://appshunter.io/ios/topics/free-angle-finder) · [tilt angle](https://appshunter.io/ios/topics/tilt-angle) · [degree finder protractor](https://appshunter.io/ios/topics/degree-finder-protractor) --- *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 2026-08-24.*