Comparison

Clinometer + bubble level vs Offline Inclinometer

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

Offline Inclinometer

Features
Read full description

This app was made by Hopebest Limited. It can help you measure how steep the slope of a mountain/trail is. Simply adjust your phone so that it is parallel to the slope you are on and it'll let you know how steep/the angle of the slope. An Inclinometer app is an invaluable digital tool designed to measure angles of slope, elevation, or inclination of an object with respect to gravity. Originally developed for geology and engineering purposes, the utility of this app has expanded to various fields including construction, automotive, and even smartphone photography. Using the internal sensors of a device, such as gyroscopes and accelerometers, the app offers a high degree of accuracy in measuring angles, making complex traditional tools like physical inclinometers or spirit levels nearly obsolete in everyday use. The interface of an Inclinometer app is typically user-friendly and intuitive. Upon opening the app, users can calibrate their device against a known flat surface to ensure precise measurements. The main display then clearly shows the angle measurements, often in degrees. In essence, an Inclinometer app transforms a smartphone or tablet into a multifunctional measurement tool, combining convenience, precision, and versatility. This makes it an essential digital companion for both professionals and hobbyists who require accurate inclination readings in their work or daily life.

Screenshots

Clinometer + bubble level4 screens
Offline Inclinometer1 screens

Verdict

The call

The clearest difference is price: Offline Inclinometer at Free against Clinometer + bubble level's $1.99. Offline Inclinometer also leads on in-app purchases (none vs 3) and update cadence (monthly vs every 4 months). Clinometer + bubble level's advantage is ads (none vs shown) and chart position (#48 vs unranked). On 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

Offline Inclinometer is free to download; Clinometer + bubble level costs $1.99 up front. Clinometer + bubble level sells 3 one-off in-app purchases. Offline Inclinometer asks for nothing beyond the download.

UpkeepUpdate frequency

Clinometer + bubble level ships an update every 4 months, Offline Inclinometer monthly. The most recent releases landed on September 24, 2026 and May 16, 2026 respectively.

Scorecard6 real differences · 5 level
Clinometer + bubble level versus Offline Inclinometer: the parameters behind the verdict, then further details
ParameterClinometer + bubble levelOffline Inclinometer
Price$1.99Free — better
Rating4.0 (42 ratings) — better—
Positive reviews90.6% of reviews—
Number of ratings42 — better—
Update frequencyEvery 4 monthsMonthly — better
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
Best chart rank#48 — better—
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, iPod
Requires iOS11.0 — better14.2
Further details — not scored
Size14 MB67 MB
Age rating4+4+
DeveloperPeter BreitlingHopebest Inc Limited

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

Offline Inclinometer

Not enough reviews yet to summarise bugs or requests.

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
None

Offline Inclinometer

No in-app purchases

Questions

Is Clinometer + bubble level free?
Clinometer + bubble level costs $1.99, and also offers in-app purchases.
Is Offline Inclinometer free?
Offline Inclinometer is free to download, with no in-app purchases.
Do Clinometer + bubble level or Offline Inclinometer have ads?
Offline Inclinometer shows ads; Clinometer + bubble level does not.
Which is updated more often, Clinometer + bubble level or Offline Inclinometer?
Clinometer + bubble level ships an update every 4 months, and Offline Inclinometer monthly. Most recently, Clinometer + bubble level was updated on September 24, 2026 and Offline Inclinometer on May 16, 2026.

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