# DrGoniometer vs OpenEvidence

The clearest difference is review sentiment: OpenEvidence at 81% against DrGoniometer's 0%. OpenEvidence also leads on price (Free vs $11.99) and rating (4.9 vs 2.3). DrGoniometer's advantage is iOS requirement (13.0 vs 15.1). On ads and device support there is nothing between them.

OpenEvidence is free to download; DrGoniometer costs $11.99 up front. DrGoniometer sells 1 one-off in-app purchase. OpenEvidence asks for nothing beyond the download.

OpenEvidence holds the better App Store score, 4.9 against 2.3. That said, the two scores are not equally well evidenced: OpenEvidence has 12K 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 81% of OpenEvidence's.

DrGoniometer ships an update every 5 months, OpenEvidence weekly. The most recent releases landed on October 15, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | DrGoniometer | OpenEvidence |
| --- | --- | --- |
| Price | $11.99 | **Free** |
| Rating | [2.3 (3 ratings)](https://appshunter.io/ios/app/drgoniometer/id362356791/reviews) | **[4.9 (12K ratings)](https://appshunter.io/ios/app/openevidence/id6612007783/reviews)** |
| Number of ratings | 3 | **12K** |
| Positive reviews | 0.0% of reviews | **80.6% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | **Weekly** |
| Monetization | Paid | **Free** |
| Best chart rank | — | **#32** |
| Size | 10 MB | 95 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | +17 |
| Developer | [CDM S.r.L.](https://appshunter.io/developer/343076501) | [OpenEvidence Inc.](https://appshunter.io/developer/1761260627) |

## What reviewers say

### DrGoniometer

[App page](https://appshunter.io/ios/app/drgoniometer/id362356791)

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.

**Highlights:** 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

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DrGoniometer - PC access | $11.99 | one-time |


### OpenEvidence

[App page](https://appshunter.io/ios/app/openevidence/id6612007783)

**Currently charting:** #32 Top Free · Medical (US App Store)

This app provides healthcare professionals with evidence-based clinical decision support and medical information. It acts as a search engine, sourcing answers from peer-reviewed literature and leading medical organizations to aid in high-stakes medical decisions at the point of care.

**Highlights:** Clinical decision support, Medical search engine, Sourced from peer-reviewed literature, FDA and CDC data integration, Partnerships with leading medical journals, Verified healthcare professional access

**Features:** Siri integration

**In-app purchases:** none

**What reviewers like**

- 🚀 Accurate and concise answers
- 💡 Provides references and sources
- 👍 Helpful for clinical practice
- 🚀 Efficient search and retrieval
- 👍 Invaluable quick reference tool

**What reviewers complain about**

- 🐛 App not working in latest update
- ⚠️ Requires specific prompts for complete information

**Reported bugs**

- App not working in latest update

**Requested features**

- Availability on MacBook
- Integration with clinical workflows and EMRs


## Frequently asked questions

### Is DrGoniometer free?

DrGoniometer costs $11.99, and also offers in-app purchases.

### Is OpenEvidence free?

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

### Which has better reviews, DrGoniometer or OpenEvidence?

OpenEvidence is rated higher. DrGoniometer averages 2.3 out of 5 from 3 ratings, while OpenEvidence averages 4.9 from 12K ratings.

### Do DrGoniometer or OpenEvidence have ads?

Neither DrGoniometer nor OpenEvidence shows ads.

### Which is updated more often, DrGoniometer or OpenEvidence?

DrGoniometer ships an update every 5 months, and OpenEvidence weekly. Most recently, DrGoniometer was updated on October 15, 2026 and OpenEvidence on October 19, 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.*