CobbMeter CE vs Vumedi
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CobbMeter CE
This medical tool transforms your iPhone into a professional measuring device for spinal radiographs. It accurately calculates Cobb angle, kyphosis angle, and sacral slope, aiding spinal care professionals in diagnosis and treatment planning.
- Measures Cobb angle
- Measures kyphosis angle
- Measures sacral slope
- Uses iPhone position sensor for accuracy
- Logs and emails measurements
- Calibration for horizontal plane measurements
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CobbMeter is a medical tool designed to measure the Cobb angle, the kyphosis angle, and the sacral slope on vertical spine radiographs. It is intended to the Spinal care professional, and turns the iPhone into a professional measuring tool. " I designed CobbMeter with Regis Rigal as the professional tool I had always needed in my everyday practice in both Orthopedic Spine Surgery and Spinal non operative care. A tool that fits in the pocket in the very same device that I use to manage my busy schedule, that I can call immediately by pressing an icon, and which can be used on both regular radiographs or even a (vertical) computer screen to measure accurately the Cobb angle in spinal deformities, but also the kyphosis angle in spinal fractures and the sacral slope in degenerative and deformitic conditions. All that one has to do in using the device is align the side of the iPhone to the standard tracings we use routinely, and the position sensor built in the iPhone will do the rest. The precision of the device itself is 1/10th of a degree, far more precise than the precision of the measure as determined in everyday practice and the literature. Measures are logged for further use and may be sent by e-mail to the surgeon or staff for recording purposes, with the levels of the measured curve, type of curve and patient id or number. A calibration procedure was also implemented to accurately measure the angle with the horizontal plane as in the sacral slope. Through though the developpement, Regis has shown an extraordinary sense of patience and astounding programming skills so as to accurately provide a tool that fits the needs of the surgeon and the spine care provider to best treat the patients ; and I thank him for his efforts. I am very proud of releasing this small software in the community, and I hope it will facilitate a little bit the life of my dear colleagues and the patients. I thank the colleagues who gave me their kind advice on the software during its developpement and wish they will find it useful." Dr Frederic Jacquot Chirurgien du Rachis Chirurgien Orthopédiste, Chirurgien des Hôpitaux de Paris
Vumedi
Access a vast library of educational videos created by medical experts. Engage with a community of over a million physicians to discuss cases, share knowledge, and stay updated on the latest medical advancements. Prepare for complex scenarios and enhance patient care.
- Over 100,000 educational videos
- Discuss cases with experts
- Stay updated on medical advances
- Prepare for challenging cases
- Live webinars
- Private messaging with faculty
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Vumedi is a video education platform for doctors. Over 1,000,000 physicians use Vumedi to improve patient care and grow their practice. Features: - Watch and discuss over 100,000 educational videos from published experts and world renowned faculty members - Stay up to date on new advances - Prepare for challenging cases, rare pathologies, and complications - Ask for opinions from thousands of other doctors or privately message expert faculty - Participate in live webinars
Screenshots
Verdict
The clearest difference is price: Vumedi at Free against CobbMeter CE's $8.99. Vumedi also leads on review sentiment (68% vs 25%) and rating (4.9 vs 1.8). CobbMeter CE's advantage is ads (none vs shown) and iOS requirement (6.0 vs 17.0). On update cadence, in-app purchases 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
Vumedi is free to download; CobbMeter CE costs $8.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Vumedi holds the better App Store score, 4.9 against 1.8. That said, the two scores are not equally well evidenced: Vumedi has 4.3K ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 25% of CobbMeter CE's written reviews are positive against 68% of Vumedi's.
CobbMeter CE ships an update every 2 weeks, Vumedi weekly. The most recent releases landed on September 29, 2026 and October 13, 2026 respectively.
| Parameter | CobbMeter CE | Vumedi |
|---|---|---|
| Price | $8.99 | Free — better |
| Rating | 1.8 (5 ratings) | 4.9 (4.3K ratings) — better |
| Positive reviews | 25.0% of reviews | 68.3% of reviews — better |
| Number of ratings | 5 | 4.3K — better |
| Update frequency | Every 2 weeks | Weekly — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Paid | Ad-supported — better |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 6.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 4 MB | 65 MB |
| Age rating | 12+ | 17+ |
| Developer | Regis RIGAL | VuMedi, Inc. |
Customer experience
CobbMeter CE
Vumedi
Bugs and requests
CobbMeter CE
Not enough reviews yet to summarise bugs or requests.
Vumedi
Reported bugs
4 issues- App has problem, doesn't work after new update
- Can't even access app, can't log in
- Videos don't load
- App not working, videos are not loading
Requested features
11 requests- Add 2x speed playback
- Add ability to adjust playback speed
- Add video playback speed controls
- Add ability to swipe to fast forward/rewind
- Add offline play mode
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- Add AI-generated transcripts and summaries
- Add ability to edit playlists
- Add folders to organize saved videos
- Add history feature to rewatch viewed videos
- Update app to support new iPad Pro screen resolution
- Add subtitles option
In-app purchases
CobbMeter CE
No in-app purchases
Vumedi
No in-app purchases









