Tiny Spines vs Zen Track
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Tiny Spines
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Do you have a child that was diagnosed with scoliosis at a very young age? Is your child currently undergoing surgical or non-surgical treatment for their scoliosis? Do you wish that you could speak to other families who have children like yours while avoiding some of the misinformation and anxiety causing discussions present in Facebook groups? Tiny Spines is the app you have been looking for! Tiny Spines was created by pediatric orthopedic surgeons who specialize in adolescent and early onset scoliosis. The users of this app are curated by practicing pediatric orthopedic surgeons. This means that you can be confident that you are interacting with parents who have kid’s undergoing similar treatments as your own child. Key features of the app include: *Access to a validated, quality of life survey specifically designed to evaluate how the patient’s treatment is going from the parent’s and patient’s perspective. *HIPPA Compliant chat rooms are divided by the type of treatment your child is undergoing for their scoliosis. *Video tutorials on various etiologies for scoliosis and their possible treatment Tiny Spines 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 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.
Zen Track
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This App together with our smartwatch provides you with the best set of information straight from your wrist. Without compromising your style, our smartwatch is not just a traditional smartwatch but a powerful sport computer to monitor your performance in real time, and also let you receive text message and notifications from your smartphone. This App integrates with the Apple Health App. A built-in pedometer tracks your steps, distance, and calories burned. A built-in sleep monitor tracks your quality of sleep. Powered with multi-sport functionality, our sport smartwatch lets you choose from a series of activity types such as running, biking, walking, hiking, trail run etc… In addition to its training functions, our sport smartwatch will also notify you when receiving incoming calls, text messages or social networks notifications.
Screenshots
Verdict
Tiny Spines and Zen Track are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 6, 2026 and October 12, 2026 respectively.
| Parameter | Tiny Spines | Zen Track |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 43 MB | 228 MB |
| Age rating | 12+ | 4+ |
| Developer | Tiny Spines LLC | Synergy Innovations Group Limited |
In-app purchases
Tiny Spines
No in-app purchases
Zen Track
No in-app purchases








