Comparison

Spine vs Spine Physics

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

Head to head
About

Spine

Access essential medical literature and randomized trials in an easy-to-read format. This subscription-based service provides immediate access to updated content, helping medical professionals and students quickly review key studies and enhance their knowledge.

Highlights
  • Review seminal studies quickly
  • Server-based platform for immediate updates
  • Annual subscription service
  • Covers surgical and non-surgical management
  • Citation information for further study
  • Updated every 1-3 months
Features
Read full description

Spine: What’s the data?, 3rd Edition This is the new and improved version of an app that puts the power of knowledge in the palm of your hand! Essential literature, including a voluminous body of randomized, controlled trials, is reviewed and presented in an easy-to-read format. The user can review seminal studies on a topic in seconds. The application uses a server-based platform, so that new entries are made immediately available to the user. It functions as an annual subscription-based service. Staff surgeons, review and update your knowledge quickly, between clinic patients, if necessary! Residents and medical students, get bulletproof protection from unpleasant pimp sessions! PAs and NPs, get the information you need, fast! Four hundred references are included, covering topics in the major areas of surgical and non-surgical management. Citation information is provided, permitting the user to pursue additional, in-depth study. No matter what your level of training or expertise, this app can make you better! Users should be aware that the content of this app overlaps with that of another app, entitled "Neurosurgery: What’s the data?", which covers the breadth of neurosurgery. ------------------------------------------------------------------------------------------ The annual subscription fee is $1.99. This is an auto-subscription app - content is updated every 1-3 months Payment will be charged to iTunes Account at confirmation of purchase Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase No cancellation of the current subscription is allowed during active subscription period Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication. Terms of Use: https://whatsthedata.com/terms-of-use Privacy policy:  https://whatsthedata.com/privacy-policy

About

Spine Physics

This app visualizes how obesity affects the body, using a teeter-totter analogy for the spine to explain the importance of maintaining a healthy abdominal girth. It serves as an educational tool for patients, drawing on a surgeon's perspective.

Highlights
  • Obesity impact visualization
  • Spine teeter-totter analogy
  • Abdominal girth importance
  • Surgeon's educational tool
  • General health information
Features
Read full description

Spine Physics visualizes the effects of obesity on the body. The analogy of the spine to a teeter totter shows the importance of keeping the abdominal girth small and light. As a surgeon, I draw this all the time for my patients to educate them. ***Disclaimer*** No advice: This app (“App)” provides only information, is not medical or treatment advice and may not be treated as such by the user. As such, this App may not be relied upon for the purposes of medical diagnosis or as a recommendation for medical care or treatment. The information on this App is not a substitute for professional medical advice, diagnosis or treatment. All content, including text, graphics, images and information, contained on or available through this App is for general information purposes only Professional Medical Advice and Assistance: You are strongly encouraged to confirm any information obtained from or through this App with your physician or another professional healthcare provider and to review all information regarding any medical condition or treatment with your physician or other a professional healthcare provider. No Reliance: YOU MUST NEVER RELY ON ANY INFORMATION OBTAINED USING THIS APP FOR ANY DIAGNOSIS OR RECOMMENDATION FOR MEDICAL TREATMENT. YOU MUST NEVER RELY ON THE INFORMATION RECEIVED FROM THIS APP AS ALTERNATIVE TO MEDICAL ADVICE FROM YOUR PHYSICIAN OR OTHER PROFESSIONAL HEALTHCARE PROVIDER. YOU MUST NEVER DISREGARD PROFESSIONAL MEDICAL ADVICE OR DELAY SEEKING MEDICAL TREATMENT AS RESULT OF ANY INFORMATION YOU HAVE SEEN ON OR ACCESSED THROUGH THIS APP. IF YOU HAVE ANY SPECIFIC QUESTIONS ABOUT ANY MEDICAL MATTER YOU SHOULD CONSULT YOUR PHYSICIAN OR OTHER PROFESSIONAL HEALTHCARE PROVIDER. IF YOU THINK YOU MAY BE SUFFERING FROM ANY MEDICAL CONDITION YOU SHOULD SEEK IMMEDIATE MEDICAL ATTENTION. No Warranty: The information provided by this App is provided “as is” without any representations or warranties, express or implied. This App makes no representations or warranties in relation to the medical or other information in this App.

Screenshots

Spine4 screens
Spine Physics3 screens

Verdict

The call

The clearest difference is in-app purchases: Spine Physics at none against Spine's 1. Spine Physics also leads on update cadence (every 2 days vs every 26 months). Spine's advantage is ratings volume (59 vs 1). On price, rating, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Spine sells 1 in-app purchase, starting at $1.99 per year. Spine Physics asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for Spine against 5.0 for Spine Physics. That said, the two scores are not equally well evidenced: Spine has 59 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Spine ships an update every 26 months, Spine Physics every 2 days. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

Scorecard4 real differences · 6 level
Spine versus Spine Physics: the parameters behind the verdict, then further details
ParameterSpineSpine Physics
PriceFreeFree
Rating4.9 (59 ratings)5.0 (1 ratings) — better
Positive reviews75.0% of reviews—
Number of ratings59 — better1
Update frequencyEvery 26 monthsEvery 2 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscriptionFree — better
DevicesiPhoneiPhone, iPod — better
Requires iOS16.615.0 — better
Further details — not scored
Size20 MB10 MB
Age rating12+12+
DeveloperLimbix LLCJonathan Nakhla

Customer experience

Spine

All ratings59 ratings
Positive98.3%
Neutral1.7%
Negative0.0%
Written reviews4 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

Spine Physics

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Spine

Subscriptions1
  • Annual Subscription3 Days trial$1.991 Year
None

Spine Physics

No in-app purchases

Questions

Is Spine free?
Spine is free to download, with in-app purchases available.
Is Spine Physics free?
Spine Physics is free to download, with no in-app purchases.
Which has better reviews, Spine or Spine Physics?
Spine Physics is rated higher. Spine averages 4.9 out of 5 from 59 ratings, while Spine Physics averages 5.0 from 1 ratings.
Do Spine or Spine Physics have ads?
Neither Spine nor Spine Physics shows ads.
Which is updated more often, Spine or Spine Physics?
Spine ships an update every 26 months, and Spine Physics every 2 days. Most recently, Spine was updated on November 1, 2026 and Spine Physics on November 3, 2026.

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