Comparison

Whatzit 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

Whatzit

This secure platform aids in spine implant identification by allowing users to post X-rays for crowdsourced feedback. It utilizes proprietary AI-powered redaction technology to automatically remove sensitive text from images directly on your device before sharing.

Highlights
  • Spine implant identification
  • Crowdsourced X-ray feedback
  • AI-powered auto-redaction
  • On-device data processing
  • Secure image sharing
Currently charting
Read full description

Whatzit is a secure platform tailor-made for spine implant identification. Featuring the proprietary TextScrub auto-redaction technology, Whatzit is the ONLY secure way to post X-rays for crowdsourced feedback. What is TextScrub? Exclusive to Whatzit, TextScrub technology uses AI, computer vision and other proprietary processes to automatically redact text from X-rays prior to being posted in the Whatzit app. This lightning fast process takes place completely on your device without any communication with Whatzit's cloud-based servers. Un-redacted X-rays with potentially sensitive information should never leave your device. Please keep in mind as you use the Whatzit app that modern mobile applications are incredibly difficult to build and just as difficult to maintain. Let us know if you notice anything that seems off or if you find a bug. We'll do our best to find a remedy in a timely manner. Additional improvements and exciting new features are on the way. Be sure to check back often for updates.

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

Whatzit4 screens
Spine Physics3 screens

Verdict

The call

The clearest difference is in-app purchases: Spine Physics at none against Whatzit's 5. Spine Physics also leads on update cadence (every 2 days vs every 6 weeks) and rating (5.0 vs 4.7). Whatzit's advantage is ratings volume (38 vs 1) and chart position (#83 vs unranked). On price, ads, device support and iOS requirement 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. Whatzit sells 3 in-app purchases, starting at $29.99 per month. Spine Physics asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Spine Physics holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Whatzit has 38 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Whatzit ships an update every 6 weeks, Spine Physics every 2 days. The most recent releases landed on September 12, 2026 and September 10, 2026 respectively.

Scorecard6 real differences · 5 level
Whatzit versus Spine Physics: the parameters behind the verdict, then further details
ParameterWhatzitSpine Physics
PriceFreeFree
Rating4.7 (38 ratings)5.0 (1 ratings) — better
Positive reviews81.8% of reviews—
Number of ratings38 — better1
Update frequencyEvery 6 weeksEvery 2 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
Best chart rank#83 — better—
DevicesiPhone, iPodiPhone, iPod
Requires iOS14.0 — better15.0
Further details — not scored
Size33 MB10 MB
Age rating17+12+
DeveloperEssential Ventures LLCJonathan Nakhla

Customer experience

Whatzit

All ratings38 ratings
Positive92.1%
Neutral0.0%
Negative7.9%
Written reviews11 reviews
Positive81.8%
Neutral9.1%
Negative9.1%

Spine Physics

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

In-app purchases

3 purchases

Whatzit

Subscriptions2
  • Upgrade to Premium2 variants$29.991 Month
  • Upgrade to Premium2 variants$179.991 Year
One-time1
  • Boost Your Post$14.99
None

Spine Physics

No in-app purchases

Questions

Is Whatzit free?
Whatzit 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, Whatzit or Spine Physics?
Spine Physics is rated higher. Whatzit averages 4.7 out of 5 from 38 ratings, while Spine Physics averages 5.0 from 1 ratings.
Do Whatzit or Spine Physics have ads?
Neither Whatzit nor Spine Physics shows ads.
Which is updated more often, Whatzit or Spine Physics?
Whatzit ships an update every 6 weeks, and Spine Physics every 2 days. Most recently, Whatzit was updated on September 12, 2026 and Spine Physics on September 10, 2026.

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