Comparison

Clinometer + bubble level vs Bubble Level

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Clinometer + bubble level

This professional tool offers precise slope measurement using all sides of your device and its camera. It supports various modes, relative angle measurements, and advanced calibration for accurate results in diverse applications.

Highlights
  • Multiple measurement modes (Clinometer, Camera, Bubble Level)
  • Relative angle measurement
  • Advanced two-way calibration
  • Speech synthesis for readings
  • Five unit modes (degrees, percentage, rise/run)
  • Motion-sensitive lock feature
  • Peer mode for two-device measurements
Features
Currently charting
Read full description

This professional tool called Clinometer is the most precise (all you can get with some calculations) slope measurement tool for the iPhone, iPod Touch and iPad using all sides of the device plus the camera. It can be used for simple applications like aligning a frame as well as for more sophisticated fields of applications where an arbitrary slope needs to be measured exactly. Read the reviews (and write your own) for all the applications you find! Thank for all your positive feedback! Please use our support link if you have questions and suggestions, we don't read the iTunes reviews every day! With this tool, the slope can be measured by all edges of the device and through the camera. The current features include: ◆ 3 Modes (incl. auto switching): Clinometer mode (auto when holding upright), Camera mode (any direction, manual activation) and Bubble level (smoothly fading in when holding flat). ◆ Relative angles: Besides measuring absolute angles, for every mode you can measure the relative angle between device positions ◆ Advanced two way calibration on all sides: For every 4 sides plus the bubble mode you can calibrate in two steps, which allows you to calibrate exactly even on non-level surfaces. Each direction can be calibrated individually to achieve the optimal precision. ◆ Speech synthesis: The device will speak the current reading, so you don't have to watch the display while measuring/aligning your object. ◆ Five different unit modes: The device can display the slope in degrees (rounded or in tenth of degrees), percentage, rise over run (common for roof slope measurement in :12) and 1V:H (common in engineering) ◆ Dial Rotation: You can smoothly rotate the background dial and thus define which side of the device represents 0° and 90° degrees. ◆ Motion-sensitive Lock feature: Besides the common instant simple tap hold mechanism you can activate the motion-sensitive lock. If activated the device waits for the final lock until you hold your device steady enough for at least 2 seconds. You can set the lock sensitivity between 0.1° and 1.0° degrees. ◆ Peer Mode: Use two devices to measure angles: One as a display, the other as the measurement device that can be attached to the hardware you want to align. ◆ Fullscreen Mode: The full screen mode can be toggled by tapping the center of the screen and by the upper and lower arrows in the center. This prevents you from erroneous inputs while measuring. ◆ Different color schemes: Press the S/C Button to instantly switch the color. The color can be selected differently for the bubble and the clinometer mode. The predefined color sets include day and night color schemes (Black on White, White on Black and Red). ◆ Adjustable Auto-Lock: You can prevent the device from turning into the sleep mode. According to wikipedia: An inclinometer or clinometer is an instrument for measuring angles of slope (or tilt), elevation or inclination of an object with respect to gravity. It is also known as a tilt meter, tilt indicator, slope alert, slope gauge, gradient meter, gradiometer, level gauge, level meter, declinometer, and pitch & roll indicator. For recreational use only. After the calibration it CAN (!) be very accurate especially for the main axis after calibration. The measurement is performed as well as possible (we try our best) by using the three inbuilt accelerometers. THANK YOU FOR YOUR SUPPORT! We will improve the application long-term. This was the first application of this kind shortly after the opening of the App Store. Since then it is continuously updated and enriched with new features.

About

Bubble Level

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.

Highlights
  • 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
Features
Read full description

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/

Screenshots

Clinometer + bubble level4 screens
Bubble Level4 screens

Verdict

The call

The clearest difference is review sentiment: Clinometer + bubble level at 91% against Bubble Level's 41%. Clinometer + bubble level also leads on ads (none vs shown) and chart position (#116 vs unranked). Bubble Level's advantage is price (Free vs $1.99) and rating (4.5 vs 4.0). On in-app purchases, monetization model and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Bubble Level is free to download; Clinometer + bubble level costs $1.99 up front. Clinometer + bubble level sells 3 one-off in-app purchases and Bubble Level sells 11 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Bubble Level holds the better App Store score, 4.5 against 4.0. That said, the two scores are not equally well evidenced: Bubble Level has 702 ratings behind it against 42, so its average is the more settled of the two. Written reviews complicate that: 91% of Clinometer + bubble level's written reviews are positive against 41% of Bubble Level's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Clinometer + bubble level ships an update every 4 months, Bubble Level weekly. The most recent releases landed on September 24, 2026 and September 20, 2026 respectively.

Scorecard8 real differences · 3 level
Clinometer + bubble level versus Bubble Level: the parameters behind the verdict, then further details
ParameterClinometer + bubble levelBubble Level
Price$1.99Free — better
Rating4.0 (42 ratings)4.5 (702 ratings) — better
Positive reviews90.6% of reviews — better41.4% of reviews
Number of ratings42702 — better
Update frequencyEvery 4 monthsWeekly — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
Best chart rank#116 — better—
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, Apple Watch
Requires iOS11.0 — better16.6
Further details — not scored
Size14 MB43 MB
Age rating4+4+
DeveloperPeter BreitlingJens Rieckhof

Customer experience

Clinometer + bubble level

All ratings42 ratings
Positive73.8%
Neutral4.8%
Negative21.4%
Written reviews627 reviews
Positive90.6%
Neutral2.2%
Negative7.2%

Bubble Level

All ratings702 ratings
Positive87.6%
Neutral3.4%
Negative9.0%
Written reviews29 reviews
Positive41.4%
Neutral3.4%
Negative55.2%

User reviews

Clinometer + bubble level

From 42 App Store ratings

What we love

  • 👍 Accurate and reliable
  • 🚀 Easy to use and calibrate
  • 💡 Useful for various applications (construction, DIY, etc.)
  • 🔍 Helpful for aligning satellite dishes, solar panels, and more
  • 🔍 Great for leveling and measuring angles

Room to improve

  • 🐛 Calibration issues on some devices
  • 🐛 Occasional crashes or freezes
  • 🔍 Not accurate enough for some specialized uses (e.g., golf greens)
  • 🔍 Lack of clear instructions or tutorial

Bubble Level

From 702 App Store ratings

What we love

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

Room to improve

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

Bugs and requests

Clinometer + bubble level

Reported bugs

3 issues
  • Calibration not working correctly on some devices
  • App freezing or crashing on launch for some users
  • Readings not accurate when device is in a case

Requested features

5 requests
  • Dark mode or night-friendly interface
  • Ability to measure average slope over a distance
  • Option to display both degrees and percent slope
  • Integration with camera for sighting and measuring angles
  • Bluetooth connectivity to pair multiple devices

Bubble Level

Reported bugs

2 issues
  • App crashes on launch
  • Measurement point behaves erratically

Requested features

2 requests
  • Ability to calibrate the app
  • Option to change the display color

In-app purchases

3 purchases

Clinometer + bubble level

One-time3
  • Support Updates Level Bronze$0.99
  • Support Developer Level Silver$2.99
  • Support Developer Level Gold$7.99
11 purchases

Bubble Level

Subscriptions6
  • Premium - Weekly Plan$1.997 Days
  • Spirit Level Premium – Monthly$2.991 Month
  • Bubble Level Premium - Weekly$2.997 Days
Show 3 more
  • Bubble Level Premium - Monthly$5.991 Month
  • Spirit Level Premium – Annual7 Days trial$14.991 Year
  • Bubble Level Premium - Annual7 Days trial$19.991 Year
One-time5
  • All features - No ads$1.99
  • Unlock all AR features$5.99
  • Discount Lifetime Premium$14.99
Show 2 more
  • Bubble Level PREMIUM Lifetime$19.99
  • Bubble Level - Lifetime Premium$29.99

Questions

Is Clinometer + bubble level free?
Clinometer + bubble level costs $1.99, and also offers in-app purchases.
Is Bubble Level free?
Bubble Level is free to download, with in-app purchases available.
Which has better reviews, Clinometer + bubble level or Bubble Level?
Bubble Level is rated higher. Clinometer + bubble level averages 4.0 out of 5 from 42 ratings, while Bubble Level averages 4.5 from 702 ratings.
Do Clinometer + bubble level or Bubble Level have ads?
Bubble Level shows ads; Clinometer + bubble level does not.
Which is updated more often, Clinometer + bubble level or Bubble Level?
Clinometer + bubble level ships an update every 4 months, and Bubble Level weekly. Most recently, Clinometer + bubble level was updated on September 24, 2026 and Bubble Level on September 20, 2026.

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