Comparison

Nutrient Tracker vs Zolyn

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

Head to head
About

Nutrient Tracker

Easily track your daily vitamin and mineral intake with this free app. It offers unlimited reminders, Apple Health sync, and secure iCloud backups, all without ads or hidden costs.

Highlights
  • Track vitamins and minerals
  • Unlimited reminders
  • Apple Health sync
  • iCloud backups
  • Medical sources for elements
  • Data history records
  • Watch face widgets
Features
Read full description

Simplify your vitamin & mineral tracking. This elegant app syncs flawlessly with Apple Health, protects your data with iCloud backups, and is completely free – no ads, no hidden costs, no strings attached. ■ FEATURES • Track your vitamins & minerals • Unlimited Reminders • Awesome widgets for watch face • Medical sources for each element • Data records history • Individual color for each element • Works without iPhone • Apple Health sync • iCloud Backups • 100% free • Zero ads, no in-app purchases ■ SAFE AND SECURE Privacy is not something you are merely entitled to, it is an absolute prerequisite. At Martspec, we believe privacy is a fundamental human right. So we built it into our products from the beginning of the design process. We do not share your data with any 3rd party. We do not use it for advertisement purposes and do not use it for profit. Your data is stored only on your Apple service (Apple Health store and iCloud). We do NOT store your data on our servers. ■ DISCLAIMER The nutritional information provided in this app is sourced from the U.S. National Institute of Health and the book “Nutrition for Health and Health Care,” 3rd Edition, by E. Whitney. This content is designed strictly for educational purposes and should NOT replace professional medical advice, diagnosis, or treatment. Your use of this application is entirely at your own discretion and risk. The app is made available to you “as is” and “as available,” without any representations or warranties of any kind. While we strive for excellence in our software development, Martspec cannot guarantee that the app will be free from errors or defects. Martspec expressly disclaims all warranties, whether express or implied, including, but not limited to, implied warranties of merchantability, fitness for a particular purpose, and non-infringement. We do not warrant that the app, or any content provided through it, will always be available, uninterrupted, timely, secure, current, accurate, complete, or error-free. You acknowledge that your exclusive remedy for any dissatisfaction or issues with the app is to discontinue its use. Martspec shall not be liable for any direct, indirect, incidental, special, consequential, or exemplary damages, including but not limited to, damages for loss of profits, goodwill, use, data, or other intangible losses resulting from the use or inability to use the app. ■ BUILD TOGETHER At the heart of everything we do is one simple goal: to help you feel and live better every day. Our mission is to expand human potential by merging cutting-edge technology, beautifully crafted design, and the insights you share directly with us. We ground our work in science—leveraging trusted research and real-world data—while it’s your feedback that guides our journey forward. This isn’t just an app; it’s a shared experience. We’re a passionate team of creators, and you’re the co-pilot. Every idea, suggestion, and request helps us build smarter features, refine your experience, and eliminate what doesn’t serve you. Together, we’re crafting a tool that evolves with you to make daily life smoother and more vibrant.

About

Zolyn

This app helps you optimize your nutrition and health by visualizing your food intake and micronutrient levels. It features a gamified dashboard, a rich food database, and alerts for potential deficiencies, turning healthy eating into an engaging routine.

Highlights
  • Visual micronutrient tracking
  • Rich food database
  • Water and Vitamin D tracking
  • Micronutrient focus
  • Deficiency alerts
  • Local data storage
Features
Read full description

Not just another nutrition tracker - the most accessible companion for optimizing your nutrition & health, from within. We were tired of spreadsheets and bloated apps - so we made Zolyn! With a fun, gamified dashboard inspired by energy bars and batteries, Zolyn turns nutrition tracking into a simple, engaging routine. Understand your food intake and stay away from issues like B12 deficiencies, anemia from iron deficiency… and worse! Improve your vitality and support your long-term health by visualising where your diet may fall short. Key features: • Visual tracking — fill your “micronutrient batteries” daily • Rich food database — log what you eat in seconds • Water Nutrition — check how your favorite water supports your mineral intake, all waters are not the same! • Vitamin D Tracker — monitor your sunshine health and how it helps your immune system • Micronutrient focus — track vitamins, minerals, and trace elements • Deficiency alerts — spot weak areas and optimize with ease • Journal – track your food log and visualize your nutrition progress over time • No account needed — everything is stored locally on your device • Zolyn+ (optional) — unlock additional nutrients and deeper insights Built by biohackers to help you optimize your nutrition! Medical disclaimer: Zolyn is intended for informational and educational purposes only. It does not provide medical advice, diagnosis, or treatment. The content presented in this app is not a substitute for professional medical advice. Always seek the guidance of a qualified healthcare provider with any questions you may have regarding a medical condition or nutritional needs. You should never disregard or delay seeking medical advice because of our content. By using this app, you agree to our Terms of Use: https://protostarapps.com/terms-of-use-zolyn/

Screenshots

Zolyn4 screens

Verdict

The call

The clearest difference is rating: Zolyn at 5.0 against Nutrient Tracker's 3.7. Zolyn also leads on update cadence (every 5 days vs every 12 months). Nutrient Tracker's advantage is in-app purchases (none vs 3) and ratings volume (7 vs 1). On price and ads 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. Zolyn sells 3 in-app purchases, starting at $4.99 per month. Nutrient Tracker asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Zolyn holds the better App Store score, 5.0 against 3.7. That said, the two scores are not equally well evidenced: Nutrient Tracker has 7 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Nutrient Tracker ships an update every 12 months, Zolyn every 5 days. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

Scorecard7 real differences · 3 level
Nutrient Tracker versus Zolyn: the parameters behind the verdict, then further details
ParameterNutrient TrackerZolyn
PriceFreeFree
Rating3.7 (7 ratings)5.0 (1 ratings) — better
Positive reviews75.0% of reviews—
Number of ratings7 — better1
Update frequencyEvery 12 monthsEvery 5 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPod, Apple Watch — betteriPhone
Requires iOS13.0 — better18.0
Further details — not scored
Size13 MB19 MB
Age rating12+12+
DeveloperMartspec LLCTRISTAN BLAIRET

Customer experience

Nutrient Tracker

All ratings7 ratings
Positive71.4%
Neutral0.0%
Negative28.6%
Written reviews8 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

Zolyn

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

In-app purchases

None

Nutrient Tracker

No in-app purchases

3 purchases

Zolyn

Subscriptions2
  • Zolyn+ Monthly$4.991 Month
  • Zolyn+ Yearly$47.991 Year
One-time1
  • Zolyn+ Lifetime$79.99

Questions

Is Nutrient Tracker free?
Nutrient Tracker is free to download, with no in-app purchases.
Is Zolyn free?
Zolyn is free to download, with in-app purchases available.
Which has better reviews, Nutrient Tracker or Zolyn?
Zolyn is rated higher. Nutrient Tracker averages 3.7 out of 5 from 7 ratings, while Zolyn averages 5.0 from 1 ratings.
Do Nutrient Tracker or Zolyn have ads?
Neither Nutrient Tracker nor Zolyn shows ads.
Which is updated more often, Nutrient Tracker or Zolyn?
Nutrient Tracker ships an update every 12 months, and Zolyn every 5 days. Most recently, Nutrient Tracker was updated on November 3, 2026 and Zolyn on October 30, 2026.

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