Comparison

CobbMeter CE vs SagittalMeter Lite

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

SagittalMeter Lite

This application assists medical practitioners in measuring crucial sagittal balance parameters directly from sagittal X-rays. It helps analyze spine problems and pre-operative planning by calculating pelvic incidence, pelvic tilt, and sacral slope.

Highlights
  • Measure sagittal balance parameters
  • Directly use phone on X-rays
  • Calculate Pelvic Incidence (PI)
  • Calculate Pelvic Tilt (PT)
  • Calculate Sacral Slope (SS)
  • Aid in spine problem analysis
Features
Read full description

SagittalMeter is an educative app to easily measure sagittal balance parameters, by directly placing your phone on the sagittal X-Rays. The sagittal balance is an imperative factor to take into consideration for all practitioners treating spine problems and particularly for surgeons during the pre-operative phase. The compensatory mechanisms of a sagittal unbalanced spine may prevent a successful surgery outcome. A fundamental understanding of a correct sagittal alignment is strongly recommended in determining the correct use of fusion or non fusion devices. SagittalMeter enables you to measure 3 fundamental angles which are essential to analyze sagittal alignment: • Pelvic incidence (PI) • Pelvic tilt (PT) • Sacral slope (SS)

Screenshots

CobbMeter CE1 screens
SagittalMeter Lite4 screens

Verdict

The call

The clearest difference is review sentiment: SagittalMeter Lite at 100% against CobbMeter CE's 25%. SagittalMeter Lite also leads on price (Free vs $8.99) and rating (5.0 vs 1.8). CobbMeter CE's advantage is update cadence (every 2 weeks vs every 31 months) and ratings volume (5 vs 1). On ads, 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

SagittalMeter Lite 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

SagittalMeter Lite holds the better App Store score, 5.0 against 1.8. That said, the two scores are not equally well evidenced: CobbMeter CE has 5 ratings behind it against 1, 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 100% of SagittalMeter Lite's.

UpkeepUpdate frequency

CobbMeter CE ships an update every 2 weeks, SagittalMeter Lite every 31 months. The most recent releases landed on October 15, 2026 and October 5, 2026 respectively.

Scorecard7 real differences · 3 level
CobbMeter CE versus SagittalMeter Lite: the parameters behind the verdict, then further details
ParameterCobbMeter CESagittalMeter Lite
Price$8.99Free — better
Rating1.8 (5 ratings)5.0 (1 ratings) — better
Positive reviews25.0% of reviews100.0% of reviews — better
Number of ratings5 — better1
Update frequencyEvery 2 weeks — betterEvery 31 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPodiPhone, iPod
Requires iOS6.0 — better12.2
Further details — not scored
Size4 MB36 MB
Age rating12+12+
DeveloperRegis RIGALJean-Charles LE HUEC

Customer experience

CobbMeter CE

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

SagittalMeter Lite

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

CobbMeter CE

No in-app purchases

None

SagittalMeter Lite

No in-app purchases

Questions

Is CobbMeter CE free?
CobbMeter CE costs $8.99, with no in-app purchases.
Is SagittalMeter Lite free?
SagittalMeter Lite is free to download, with no in-app purchases.
Which has better reviews, CobbMeter CE or SagittalMeter Lite?
SagittalMeter Lite is rated higher. CobbMeter CE averages 1.8 out of 5 from 5 ratings, while SagittalMeter Lite averages 5.0 from 1 ratings.
Do CobbMeter CE or SagittalMeter Lite have ads?
Neither CobbMeter CE nor SagittalMeter Lite shows ads.
Which is updated more often, CobbMeter CE or SagittalMeter Lite?
CobbMeter CE ships an update every 2 weeks, and SagittalMeter Lite every 31 months. Most recently, CobbMeter CE was updated on October 15, 2026 and SagittalMeter Lite on October 5, 2026.

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