# Clinometer + bubble level vs RehabKit

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 (#58 vs unranked) and device support (4 vs 2). On ratings volume, ads and in-app purchases there is nothing between them.

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.

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.

Clinometer + bubble level ships an update every 4 months, RehabKit every 9 days. The most recent releases landed on September 27, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Clinometer + bubble level | RehabKit |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | [4.0 (42 ratings)](https://appshunter.io/ios/app/clinometer-plus-bubble-level/id286215117/reviews) | **[5.0 (82 ratings)](https://appshunter.io/ios/app/rehabkit/id1300900487/reviews)** |
| Number of ratings | 42 | **82** |
| Positive reviews | 90.6% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 9 days** |
| Monetization | **Free with in-app purchases** | Subscription |
| Best chart rank | **#58** | — |
| Size | 14 MB | 135 MB |
| Requires iOS | **11.0** | 26.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Peter Breitling](https://appshunter.io/developer/286215120) | [Schumacher Physical Therapy and Performance](https://appshunter.io/developer/1711506500) |

## What reviewers say

### Clinometer + bubble level

[App page](https://appshunter.io/ios/app/clinometer-plus-bubble-level/id286215117)

**Currently charting:** #58 Top Paid · Utilities (US App Store)

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:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Support Updates Level Bronze | $0.99 | one-time |
| Support Developer Level Silver | $2.99 | one-time |
| Support Developer Level Gold | $7.99 | one-time |

**What reviewers like**

- 👍 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

**What reviewers complain about**

- 🐛 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

**Reported bugs**

- 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**

- 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

[App page](https://appshunter.io/ios/app/rehabkit/id1300900487)

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)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Base Utilities (1-month) | $12.99 | per month |
| Base Utilities (1-year) | $79.99 | per year |
| Base Utilities (Lifetime) | $249.99 | one-time |


## Frequently asked 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 27, 2026 and RehabKit on September 18, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*