DrGoniometer vs Goniometer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DrGoniometer
This medical tool allows healthcare professionals to accurately measure and store patient joint articulation angles using iPhone photography. It offers scientifically validated measurements comparable to professional tools and includes features for data management and export.
- Measure patient articulation angles
- Store patient records and historical data
- Photograph articulations with marker identification
- Scientifically validated measurement accuracy
- Export data to Excel via iTunes File Sharing
- Browse and print patient records
- Backup and restore data
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Dr. Goniometer is a tool whereby physiatrists, orthopaedists and physiotherapists can measure the movement angles of their patient’s articulations and store all related data. It is the only tool supported scientifically by comparative studies on real cases, as mentioned hereunder. The tool enables the management of patient records, measurement of patient articulation angles and storage of all related information to build up historical data bases for each articulation and movement. Measurement is by photographing the articulation and identifying the pictures taken with three separate markers. Picture taking is supported with perpendicular reference to ground level, iPhone alignment identification and patient central position referencing. These data come from Medical Literature suggestions for completing this type of reliable measurement (Cf. for instance, Dunlevy C. et al. "Procedural considerations for photographic-based joint angle measurements", Physiother. Res. Int. 2005; 10(4): 190-200). Dr. Goniometer has been used in recent studies – the publication of which is currently under way – that have identified reliability and measurement errors comparable to those of professional measurement tools (such as the Universal Goniometer, Isokinetic Tools Goniometer and the like). The study "A new iPhone-based Goniometer (Dr. Goniometer): a Validation Study", in particular, reports that various measurements on several patients were made simultaneously with professional tools and Dr. Goniometer. Measurements with the latter were repeated by different physiatrists and physiotherapists and results indicate comparable measurement errors for the Dr. Goniometer and other tools. In addition to the above, further features are also available through in-app purchase to: - computer browse all Dr. Goniometer data (such as patient records, measurements, photos and the like) and print any patient articulation record; - backup all Dr. Goniometer data on the computer; - use a previously created back-up to restore all Dr. Goniometer data on any iPhone (as in the event of iPhone replacement or application re-installation, for instance). - export all measures in a Excel file through iTunes File Sharing, connecting your iphone and PC through the USB cable. All the above features are available with no additional computer software required, just a common Internet browser; any operating system is supported, whether Microsoft, Apple, or others. The iPhone and PC used must be on the same WiFi network for computer and Dr. Goniometer connection. Should no WiFi connection be available, if the iPhone is be connected to a mobile network and the PC to the Internet, the iPhone and computer connection will be based on the settings of the mobile network in use. Dr. Goniometer ensures constant measurement tool availability and access to patient data bases. New measurements can always be made at each patient visit, with no need for constant patient record updating as completed measurements are stored automatically on the iPhone or PC used and are retrievable whenever needed.
Goniometer
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.
- Measures angles
- Measures joint range of motion
- Assesses joint injury extent
- Predicts recovery speed
- Easy to use interface
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A Goniometer is a device that measures angles or allows an object to rotate to a specific position. One of its most common uses is measuring a patient's range-of-motion (ROM) for a particular joint. This measurement is used to determine the extent of a patient's joint injury and the expected speed of their recovery. This goniometer is a basic app that is easy to use.
Screenshots
Verdict
The clearest difference is rating: Goniometer at 3.2 against DrGoniometer's 2.3. Goniometer also leads on review sentiment (39% vs 0%) and in-app purchases (none vs 1). DrGoniometer's advantage is update cadence (every 5 months vs every 44 months). On ads and device support 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
DrGoniometer costs $11.99 and Goniometer $4.99 up front. DrGoniometer sells 1 one-off in-app purchase. Goniometer asks for nothing beyond the download.
Goniometer holds the better App Store score, 3.2 against 2.3. That said, the two scores are not equally well evidenced: Goniometer has 39 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 0% of DrGoniometer's written reviews are positive against 39% of Goniometer's.
DrGoniometer ships an update every 5 months, Goniometer every 44 months. The most recent releases landed on September 29, 2026 and September 28, 2026 respectively.
| Parameter | DrGoniometer | Goniometer |
|---|---|---|
| Price | $11.99 | $4.99 — better |
| Rating | 2.3 (3 ratings) | 3.2 (39 ratings) — better |
| Positive reviews | 0.0% of reviews | 38.9% of reviews — better |
| Number of ratings | 3 | 39 — better |
| Update frequency | Every 5 months — better | Every 44 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 | 8.0 — better |
| Further details — not scored | ||
| Size | 10 MB | 8 MB |
| Age rating | 17+ | 12+ |
| Developer | CDM S.r.L. | June Gaming |
Customer experience
DrGoniometer
Goniometer
In-app purchases
DrGoniometer
- DrGoniometer - PC access$11.99
Goniometer
No in-app purchases






