# ARorthopaedicGoniometer vs Sentio

The clearest difference is price: Sentio at Free against ARorthopaedicGoniometer's $6.99. Sentio also leads on update cadence (every 3 days vs every 10 months). ARorthopaedicGoniometer's advantage is device support (3 vs 1) and iOS requirement (13.2 vs 17.0). On ads and in-app purchases there is nothing between them.

Sentio is free to download; ARorthopaedicGoniometer costs $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ARorthopaedicGoniometer ships an update every 10 months, Sentio every 3 days. The most recent releases landed on October 7, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | ARorthopaedicGoniometer | Sentio |
| --- | --- | --- |
| Price | $6.99 | **Free** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 3 days** |
| Monetization | Paid | — |
| Size | 2 MB | 16 MB |
| Requires iOS | **13.2** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [ORTHOPRACTIS.COM SINGLE MEMBER P.C.](https://appshunter.io/developer/1286360877) | [Polina Bloshchitcyn](https://appshunter.io/developer/1886891092) |

## What reviewers say

### ARorthopaedicGoniometer

[App page](https://appshunter.io/ios/app/arorthopaedicgoniometer/id1439505753)

This app uses augmented reality to accurately measure joint range of motion. It allows medical professionals to easily record and save measurements directly from their device's camera, offering a precise and convenient alternative to traditional goniometers.

**Highlights:** Augmented reality angle measurement, Accurate joint range of motion estimation, Live camera feed measurement, Save measurements as screenshots, Adjustable pointer calibration, Intuitive point selection

**In-app purchases:** none


### Sentio

[App page](https://appshunter.io/ios/app/sentio-sensor-toolkit/id6807171231)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ARorthopaedicGoniometer free?

ARorthopaedicGoniometer costs $6.99, with no in-app purchases.

### Is Sentio free?

Sentio is free to download, with no in-app purchases.

### Do ARorthopaedicGoniometer or Sentio have ads?

Neither ARorthopaedicGoniometer nor Sentio shows ads.

### Which is updated more often, ARorthopaedicGoniometer or Sentio?

ARorthopaedicGoniometer ships an update every 10 months, and Sentio every 3 days. Most recently, ARorthopaedicGoniometer was updated on October 7, 2026 and Sentio on October 4, 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.*