# Goniometer vs RateFast Goniometer

The clearest difference is price: RateFast Goniometer at Free against Goniometer's $4.99. RateFast Goniometer also leads on update cadence (every 8 months vs every 44 months) and review sentiment (60% vs 39%). Goniometer's advantage is rating (3.2 vs 2.0) and ratings volume (39 vs 4). On ads, in-app purchases, monetization model and device support there is nothing between them.

RateFast Goniometer is free to download; Goniometer costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Goniometer holds the better App Store score, 3.2 against 2.0. That said, the two scores are not equally well evidenced: Goniometer has 39 ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 39% of Goniometer's written reviews are positive against 60% of RateFast Goniometer's, so the app with the better star average is not the one people write more warmly about.

Goniometer ships an update every 44 months, RateFast Goniometer every 8 months. The most recent releases landed on September 28, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Goniometer | RateFast Goniometer |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[3.2 (39 ratings)](https://appshunter.io/ios/app/goniometer/id406942245/reviews)** | [2.0 (4 ratings)](https://appshunter.io/ios/app/ratefast-goniometer/id943731798/reviews) |
| Number of ratings | **39** | 4 |
| Positive reviews | 38.9% of reviews | **60.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 44 months | **Every 8 months** |
| Monetization | Free | Free |
| Size | 8 MB | 7 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [June Gaming](https://appshunter.io/developer/1388363094) | [Alchemy Logic Systems, INC.](https://appshunter.io/developer/943731797) |

## What reviewers say

### Goniometer

[App page](https://appshunter.io/ios/app/goniometer/id406942245)

This app functions as a digital goniometer, designed to measure angles and the range of motion for patient joints. It aids in assessing joint injuries and predicting recovery timelines.

**Highlights:** Measures angles, Measures joint range of motion, Assesses joint injury extent, Predicts recovery speed, Easy to use interface

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

**In-app purchases:** none


### RateFast Goniometer

[App page](https://appshunter.io/ios/app/ratefast-goniometer/id943731798)

This medical tool allows healthcare professionals to measure a patient's functional motion remotely using a camera. It offers flexible positioning and the ability to toggle between positive and negative measurements, unlike traditional goniometers.

**Highlights:** Measure functional motion, Remote measurement via camera, Adjustable reference leg positioning, Toggle positive/negative measurements, Set initial measurement reference

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

**In-app purchases:** none


## Frequently asked questions

### Is Goniometer free?

Goniometer costs $4.99, with no in-app purchases.

### Is RateFast Goniometer free?

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

### Which has better reviews, Goniometer or RateFast Goniometer?

Goniometer is rated higher. Goniometer averages 3.2 out of 5 from 39 ratings, while RateFast Goniometer averages 2.0 from 4 ratings.

### Do Goniometer or RateFast Goniometer have ads?

Neither Goniometer nor RateFast Goniometer shows ads.

### Which is updated more often, Goniometer or RateFast Goniometer?

Goniometer ships an update every 44 months, and RateFast Goniometer every 8 months. Most recently, Goniometer was updated on September 28, 2026 and RateFast Goniometer on October 1, 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.*