DrGoniometer vs Heidi
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.
Heidi
This AI-powered medical assistant helps clinicians streamline their workflow by transcribing patient conversations into structured notes and providing quick access to evidence-based clinical information. It aims to reduce administrative burden, allowing healthcare professionals to focus more on patient care.
- AI-powered clinical note transcription
- Real-time transcription with offline sync
- Access to citation-backed clinical evidence
- Region-aware search results
- HIPAA, GDPR, PIPEDA, NHS, APP, ISO 27001 compliant
- Supports over 200 specialties
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Capture clinical notes. Access citation-backed evidence. All in one place. Heidi supports care from consult to clinical question, so you can focus on patients or take a minute for yourself. **Document anywhere** Heidi Scribe captures clinical conversations and turns them into structured notes, ready to review and refine. If your connection drops, transcription continues and syncs when you are back online. - Real-time transcription - Quick edits on the go - Secure sync across devices **Search trusted evidence** Heidi Evidence provides unlimited access to citation-backed clinical information. Completely ad-free. Built to support clinical thinking, not replace it. - Inline citations linked to trusted sources - Clear summaries grounded in original literature - Region-aware results **Trusted by clinicians worldwide** - 2.4 million patient visits supported every week - 37 million hours returned to clinicians in the past 18 months - 200 plus specialties across primary care, hospitals, and allied health **Why clinicians choose Heidi** - More time with patients - Less admin after hours - Al-generated notes reviewed and refined by clinicians - Evidence, billing, coding, and follow-up support - Compliant with HIPAA, GDPR, PIPEDA, NHS, APP, ISO 27001 Heidi. Your Al Care Partner. Terms of Use: https://heidihealth.com/legal/heidi-scribe-terms-of-use Privacy Policy: https://heidihealth.com/legal/privacy-policy
Screenshots
Verdict
The clearest difference is review sentiment: Heidi at 49% against DrGoniometer's 0%. Heidi also leads on price (Free vs $11.99) and rating (4.7 vs 2.3). DrGoniometer's advantage is iOS requirement (13.0 vs 17.0). 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
Heidi is free to download; DrGoniometer costs $11.99 up front. DrGoniometer sells 1 one-off in-app purchase. Heidi asks for nothing beyond the download.
Heidi holds the better App Store score, 4.7 against 2.3. That said, the two scores are not equally well evidenced: Heidi has 2.6K 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 49% of Heidi's.
DrGoniometer ships an update every 5 months, Heidi every 4 days. The most recent releases landed on November 10, 2026 and November 8, 2026 respectively.
| Parameter | DrGoniometer | Heidi |
|---|---|---|
| Price | $11.99 | Free — better |
| Rating | 2.3 (3 ratings) | 4.7 (2.6K ratings) — better |
| Positive reviews | 0.0% of reviews | 49.4% of reviews — better |
| Number of ratings | 3 | 2.6K — better |
| Update frequency | Every 5 months | Every 4 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 10 MB | 176 MB |
| Age rating | 17+ | 4+ |
| Developer | CDM S.r.L. | Heidi Health Trading Pty Ltd |
Customer experience
DrGoniometer
Heidi
Bugs and requests
DrGoniometer
Not enough reviews yet to summarise bugs or requests.
Heidi
Reported bugs
12 issues- Not saving all the information
- App crashing every time I attempt to start a new note
- Slow to load, often crashes or fails to record a session
- Crashes very frequently, doesn't record unless you have the physical app open and doesn't save recordings
- The pre-recording button and the recording button are almost identical
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- Rarely works, have to voice record my sessions and upload the recording for it to work
- Routinely unstable and most of my session recordings have irretrievably failed
- The app only recognises one delivery email address
- Randomly stops recording and gives an error message
- Stops recording if you get a call or any disruption in connection
- Cursor disappears when editing
- Recording consistently
Requested features
4 requests- Apple Watch version to record and transcribe audio
- Remember last used email address or have a default email
- Ability to change the plan
- Watch integration
In-app purchases
DrGoniometer
- DrGoniometer - PC access$11.99
Heidi
No in-app purchases







