Comparison

Clinometer + bubble level vs RehabKit

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

RehabKit

This app provides a suite of tools for rehabilitation professionals, including timers, measurement devices, calculators, and a comprehensive database of clinical resources. It aims to streamline data collection and provide quick access to essential clinical information.

Highlights
  • RSS Feed for rehabilitation journals
  • Stopwatch with min/max/average tracking
  • Inclinometer for frontal and sagittal plane movements
  • Rotation measurement for transverse plane movements
  • Metronome and Tempo for exercise timing
  • Tabata and EMOM interval timers
  • Averaging, HRR, and 1-RM calculators
  • Unit converter
  • Clinical Prediction Rules (CPRs) database
  • Clinical Practice Guidelines (CPGs)
Read full description

RehabKit – Precision Tools for Rehab & Performance RehabKit is a comprehensive toolkit built for physical therapists, athletic trainers, strength coaches, and performance professionals. Designed for real-world use, it brings together timing, measurement, analysis, clinical calculators, and research - all in one seamless workflow. Whether you’re in the clinic, on the field, or in the gym, RehabKit helps you move faster from assessment to action with precision and confidence. All the Tools You Need. One App. Timing Tools for Real Training Flow Tempo, Tabata, EMOM, Metronome, Timer, and Playlist tools give you complete control over session structure. - Audio cues, haptics, and voice support - Live Activities (Dynamic Island + Lock Screen) - Background execution so your session never stops - Fast setup with saved preferences - Wirelessly transfer Playlists to/from your clients Measurement & Motion Analysis Turn your device into a powerful assessment tool. - Inclinometer (digital goniometer) - Rotation (multi-axis movement tracking) - Cadence (real-time step rate) - Motion Analysis with video + pose detection Capture objective data where it matters most. Clinical Calculators Fast, repeatable calculations designed for real sessions: - Heart Rate Reserve (HRR) training zones - One-Rep Max (1RM) predictions (multiple formulas) - Recovery analysis - Limb symmetry comparisons Research That Stays Relevant Stay current without extra effort. - Curated feeds from leading rehab journals (JOSPT, BJSM, AJSM, and more) - Article summaries with images - Offline access for use anywhere Clinical Resources Built In Access evidence-based care instantly: - Clinical Practice Guidelines (CPGs) with summaries - Clinical Prediction Rules (CPRs) - Built-in viewers with fast navigation No switching apps. No lost time. Designed for How You Actually Work - Clean, fast navigation across all tools - Deep linking for instant access (even from widgets) - Customizable settings, audio, and feedback - Guided onboarding with in-app tutorials - Built for real sessions - not just demos Built on a Professional Foundation RehabKit is engineered with modern iOS frameworks for reliability and performance: - Sensor-driven measurement tools (CoreMotion) - High-precision audio timing engine - Real-time video analysis - Seamless subscription and trial experience Free Trial Download RehabKit and explore all features with a limited free trial before subscribing. Subscription Options Unlock full access with flexible options: - Monthly - Yearly - One-time purchase Subscriptions include: - Ongoing updates and enhancements - Access to new tools as they are released - Performance improvements and fixes Subscription Details - Payment will be charged to your Apple ID account at confirmation of purchase - Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period - Your account will be charged for renewal within 24 hours prior to the end of the current period - You can manage subscriptions in your Account Settings after purchase - Any unused portion of a free trial will be forfeited upon subscription purchase EULA/Terms of Use: http://www.apple.com/legal/itunes/appstore/dev/stdeula Privacy Policy: https://rehabkit.app/app-privacy-policy RehabKit isn’t just a collection of tools—it’s a complete system for modern rehab and performance. Measure better. Move faster. Deliver results. Medical Disclaimer In addition to using this app, always consult with a physician or qualified healthcare provider before making medical decisions.

Screenshots

Clinometer + bubble level4 screens
RehabKit4 screens

Verdict

The call

The clearest difference is price: RehabKit at Free against Clinometer + bubble level's $1.99. RehabKit also leads on rating (5.0 vs 4.0) and update cadence (every 9 days vs every 4 months). Clinometer + bubble level's advantage is chart position (#91 vs unranked) and device support (4 vs 2). On ratings volume, ads and in-app purchases 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

RehabKit is free to download; Clinometer + bubble level costs $1.99 up front. Clinometer + bubble level sells 3 one-off in-app purchases and RehabKit sells 3 in-app purchases, starting at $12.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

RehabKit holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 42 and 82 respectively. Written reviews point the same way: 91% of Clinometer + bubble level's written reviews are positive against 100% of RehabKit's.

UpkeepUpdate frequency

Clinometer + bubble level ships an update every 4 months, RehabKit every 9 days. The most recent releases landed on September 24, 2026 and September 18, 2026 respectively.

Scorecard8 real differences · 3 level
Clinometer + bubble level versus RehabKit: the parameters behind the verdict, then further details
ParameterClinometer + bubble levelRehabKit
Price$1.99Free — better
Rating4.0 (42 ratings)5.0 (82 ratings) — better
Positive reviews90.6% of reviews100.0% of reviews — better
Number of ratings4282 — better
Update frequencyEvery 4 monthsEvery 9 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterSubscription
Best chart rank#91 — better—
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad
Requires iOS11.0 — better26.0
Further details — not scored
Size14 MB135 MB
Age rating4+12+
DeveloperPeter BreitlingSchumacher Physical Therapy and Performance

Customer experience

Clinometer + bubble level

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

RehabKit

All ratings82 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews15 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

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

RehabKit

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
3 purchases

RehabKit

Subscriptions2
  • Base Utilities (1-month)7 Days trial$12.991 Month
  • Base Utilities (1-year)7 Days trial$79.991 Year
One-time1
  • Base Utilities (Lifetime)$249.99

Questions

Is Clinometer + bubble level free?
Clinometer + bubble level costs $1.99, and also offers in-app purchases.
Is RehabKit free?
RehabKit is free to download, with in-app purchases available.
Which has better reviews, Clinometer + bubble level or RehabKit?
RehabKit is rated higher. Clinometer + bubble level averages 4.0 out of 5 from 42 ratings, while RehabKit averages 5.0 from 82 ratings.
Do Clinometer + bubble level or RehabKit have ads?
Neither Clinometer + bubble level nor RehabKit shows ads.
Which is updated more often, Clinometer + bubble level or RehabKit?
Clinometer + bubble level ships an update every 4 months, and RehabKit every 9 days. Most recently, Clinometer + bubble level was updated on September 24, 2026 and RehabKit on September 18, 2026.

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