Comparison

CobbMeter CE vs Vumedi

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Measures Cobb angle
  • Measures kyphosis angle
  • Measures sacral slope
  • Uses iPhone position sensor for accuracy
  • Logs and emails measurements
  • Calibration for horizontal plane measurements
Features
Read full description

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

About

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.

Highlights
  • Over 100,000 educational videos
  • Discuss cases with experts
  • Stay updated on medical advances
  • Prepare for challenging cases
  • Live webinars
  • Private messaging with faculty
Features
Read full description

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

CobbMeter CE1 screens
Vumedi4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

CobbMeter CE ships an update every 2 weeks, Vumedi weekly. The most recent releases landed on September 29, 2026 and October 13, 2026 respectively.

Scorecard7 real differences · 3 level
CobbMeter CE versus Vumedi: the parameters behind the verdict, then further details
ParameterCobbMeter CEVumedi
Price$8.99Free — better
Rating1.8 (5 ratings)4.9 (4.3K ratings) — better
Positive reviews25.0% of reviews68.3% of reviews — better
Number of ratings54.3K — better
Update frequencyEvery 2 weeksWeekly — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationPaidAd-supported — better
DevicesiPhone, iPodiPhone, iPad
Requires iOS6.0 — better17.0
Further details — not scored
Size4 MB65 MB
Age rating12+17+
DeveloperRegis RIGALVuMedi, Inc.

Customer experience

CobbMeter CE

All ratings5 ratings
Positive20.0%
Neutral0.0%
Negative80.0%
Written reviews8 reviews
Positive25.0%
Neutral0.0%
Negative75.0%

Vumedi

All ratings4,319 ratings
Positive97.4%
Neutral1.4%
Negative1.2%
Written reviews101 reviews
Positive68.3%
Neutral10.9%
Negative20.8%

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
Show 6 more
  • 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

None

CobbMeter CE

No in-app purchases

None

Vumedi

No in-app purchases

Questions

Is CobbMeter CE free?
CobbMeter CE costs $8.99, with no in-app purchases.
Is Vumedi free?
Vumedi is free to download, with no in-app purchases.
Which has better reviews, CobbMeter CE or Vumedi?
Vumedi is rated higher. CobbMeter CE averages 1.8 out of 5 from 5 ratings, while Vumedi averages 4.9 from 4.3K ratings.
Do CobbMeter CE or Vumedi have ads?
Vumedi shows ads; CobbMeter CE does not.
Which is updated more often, CobbMeter CE or Vumedi?
CobbMeter CE ships an update every 2 weeks, and Vumedi weekly. Most recently, CobbMeter CE was updated on September 29, 2026 and Vumedi on October 13, 2026.

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