# RehabKit vs Bubble Level

The clearest difference is review sentiment: RehabKit at 100% against Bubble Level's 43%. RehabKit also leads on rating (5.0 vs 4.5) and ads (none vs shown). Bubble Level's advantage is ratings volume (723 vs 82) and iOS requirement (16.6 vs 26.0). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. RehabKit sells 3 in-app purchases, starting at $12.99 per month and Bubble Level sells 10 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

RehabKit holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Bubble Level has 723 ratings behind it against 82, so its average is the more settled of the two. Written reviews point the same way: 100% of RehabKit's written reviews are positive against 43% of Bubble Level's.

RehabKit ships an update every 9 days, Bubble Level weekly. The most recent releases landed on November 6, 2026 and November 11, 2026 respectively.

## The numbers

| Metric | RehabKit | Bubble Level |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (82 ratings)](https://appshunter.io/ios/app/rehabkit/id1300900487/reviews)** | [4.5 (723 ratings)](https://appshunter.io/ios/app/bubble-level-angle-finder-ar/id1594066382/reviews) |
| Number of ratings | 82 | **723** |
| Positive reviews | **100.0% of reviews** | 43.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 9 days | **Weekly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 139 MB | 43 MB |
| Requires iOS | 26.0 | **16.6** |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 12+ | 4+ |
| Developer | [Schumacher Physical Therapy and Performance](https://appshunter.io/developer/1711506500) | [Jens Rieckhof](https://appshunter.io/developer/354266124) |

## What reviewers say

### RehabKit

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

This app provides physical therapists and trainers with a suite of tools for timing, measurement, analysis, and clinical calculations. It also offers access to curated research and clinical resources, streamlining the assessment-to-action workflow.

**Highlights:** Timing tools (Tempo, Tabata, Metronome), Measurement and motion analysis, Clinical calculators, Curated research feeds, Clinical practice guidelines, Background execution, Live Activities support

**In-app purchases (3)**

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


### Bubble Level

[App page](https://appshunter.io/ios/app/bubble-level-angle-finder-ar/id1594066382)

This utility app transforms your device into a precise bubble level and angle finder. It offers augmented reality measurement tools, a user-friendly interface, and Apple Watch integration for live readings. Ideal for DIY enthusiasts and professionals needing accurate surface leveling and inclination measurements.

**Highlights:** Augmented reality ruler and protractor, Precise angle measurements to one tenth of a degree, Effortless one-touch calibration, Clear and easy-to-read visual display, Apple Watch integration for live angle readings, Measures inclination and slope

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Spirit Level Premium – Monthly | $2.99 | per month |
| Bubble Level Premium - Weekly | $2.99 | per 7 days |
| Bubble Level Premium - Monthly | $5.99 | per month |
| Spirit Level Premium – Annual | $14.99 | per year |
| Bubble Level Premium - Annual | $19.99 | per year |
| All features - No ads | $1.99 | one-time |
| Unlock all AR features | $5.99 | one-time |
| Discount Lifetime Premium | $14.99 | one-time |
| Bubble Level PREMIUM Lifetime | $19.99 | one-time |
| Bubble Level - Lifetime Premium | $29.99 | one-time |

**What reviewers like**

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

**What reviewers complain about**

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

**Reported bugs**

- App crashes on launch
- Measurement point behaves erratically

**Requested features**

- Ability to calibrate the app
- Option to change the display color


## Frequently asked questions

### Is RehabKit free?

RehabKit is free to download, with in-app purchases available.

### Is Bubble Level free?

Bubble Level is free to download, with in-app purchases available.

### Which has better reviews, RehabKit or Bubble Level?

RehabKit is rated higher. RehabKit averages 5.0 out of 5 from 82 ratings, while Bubble Level averages 4.5 from 723 ratings.

### Do RehabKit or Bubble Level have ads?

Bubble Level shows ads; RehabKit does not.

### Which is updated more often, RehabKit or Bubble Level?

RehabKit ships an update every 9 days, and Bubble Level weekly. Most recently, RehabKit was updated on November 6, 2026 and Bubble Level on November 11, 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.*