Spine vs SagittalMeter Lite
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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
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.
- 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
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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
Verdict
The clearest difference is in-app purchases: SagittalMeter Lite at none against Spine's 1. SagittalMeter Lite also leads on review sentiment (100% vs 75%) and update cadence (every 11 months 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
Both are free to download. Spine sells 1 in-app purchase, starting at $1.99 per year. SagittalMeter Lite asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.9 for Spine against 5.0 for SagittalMeter Lite. 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. Written reviews are what separate them: 75% of Spine's written reviews are positive against 100% of SagittalMeter Lite's.
Spine ships an update every 26 months, SagittalMeter Lite every 11 months. Both last shipped on November 6, 2026.
| Parameter | Spine | SagittalMeter Lite |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (59 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 75.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 59 — better | 1 |
| Update frequency | Every 26 months | Every 11 months — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Subscription | Free — better |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 16.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 20 MB | 32 MB |
| Age rating | 12+ | 12+ |
| Developer | Limbix LLC | Jean-Charles LE HUEC |
Customer experience
Spine
SagittalMeter Lite
In-app purchases
Spine
- Annual Subscription3 Days trial$1.991 Year
SagittalMeter Lite
No in-app purchases
Questions
Is Spine free?
Is SagittalMeter Lite free?
Which has better reviews, Spine or SagittalMeter Lite?
Do Spine or SagittalMeter Lite have ads?
Which is updated more often, Spine or SagittalMeter Lite?
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