Electrolyte vs Visible
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Electrolyte
This app helps you monitor essential minerals like magnesium, iron, calcium, and potassium for optimal health and energy. It offers secure iCloud backups, Apple Health sync, and Apple Watch widgets for at-a-glance tracking. Enjoy a completely free, ad-free wellness companion.
- Monitor Magnesium, Iron, Calcium, Potassium
- Secure iCloud backups
- Sync with Apple Health
- Apple Watch widgets
- Ad-free experience
- Free to use
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Unlock the secret to optimal health with our Electrolyte Tracker App—your personal wellness companion! Electrolytes aren’t just buzzwords; they’re the spark of life, crucial for powering your heart, brain, and muscles. They keep your body in harmony, ensuring everything from your heartbeat to your hydration is perfectly balanced. But it’s a delicate dance, and an imbalance can throw off your rhythm. EFFORTLESSLY MONITOR ESSENTIAL MINERALS: • Magnesium (Mg): Your energy generator • Iron (Fe): The oxygen transporter • Calcium (Ca): The bone builder • Potassium (K): The cellular communicator STAY ON TOP OF YOUR HEALTH GAME: • Secure iCloud backups keep your data safe • Seamlessly sync with Apple Health • Enjoy an ad-free experience—completely free of charge! APPLE WATCH WATCH WIDGETS: • Compatible with all watch sizes • Adaptable to every complication type • Displays your latest mineral record • Assign a unique color to each element • A dynamic progress bar shows your latest intake at a glance 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 build 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: Think of the info in our app as your fitness cheerleader – pumping you up, but not replacing your trainer’s expert advice. Using it is completely up to you, and comes “as is”, meaning glitches can happen, even though we do our best to avoid them. Our app might not be a magic wand, but we can’t promise it’ll be perfect or always spot-on. If you ever find something wonky, just chill and stop using it – that’s all we ask. Sound fair? Let’s get tracking! CONTACT US: https://twitter.com/MartspecCom https://www.linkedin.com/company/martspec/
Visible
Manage energy-limiting health conditions like Long Covid and ME/CFS through personalized pacing insights. Track biometrics, log symptoms, and understand patterns to reduce crashes and improve daily well-being. Share health reports with your doctor and contribute to research.
- Measure heart rate variability (HRV) and resting heart rate
- Log symptoms, medication, and daily exertion
- Track patterns and understand biometric influences
- Download long-term health reports
- Opt-in to participate in research studies
- Real-time pacing notifications with optional band
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Do you live with an energy-limiting health condition? Join over 250,000+ people with Long Covid, ME/CFS, POTS, Fibromyalgia, chronic fatigue and more who are improving their pacing with Visible. Get more from the energy you have. Pacing (balancing activity and rest) is one of the best ways to live well with your condition and reduce the risk of crashes or PEM. But pacing can be hard. Visible gives you personalized insights to help you understand your body, manage your energy and pace with more confidence. Unlike fitness tracking apps, Visible is designed to support rest and pacing, not workouts and exercise. MEASURE YOUR PACE Use your phone’s camera to measure your biometrics, including heart rate variability (HRV) and resting Heart Rate each morning. Understand your daily stability and make informed choices about how to pace your day. TRACK AND SPOT PATTERNS Log your symptoms, medication, and daily exertion to spot patterns over time. See how your lifestyle choices may be influencing how you feel and your biometrics. HEALTH REPORT AND EXPORT Download long-term health reports to get an overview of your trends and share them with your doctor. TAKE PART IN RESEARCH Opt-in to studies with world-leading researchers. Volunteer your data and help advance the science of energy-limiting conditions. GET ALL DAY DATA Pair the Visible band for real-time pacing notifications, PacePoints, all-day energy budgeting, and more. Only available in US and UK. THOUSANDS OF 5-STAR REVIEWS “Visible has been LIFE-CHANGING. I had fibromyalgia before COVID and thought I did well at pacing, but this has helped me on a whole new level.” – Roma “This is the first app in the 33 years since I have been diagnosed with this condition that shows me the data my doctor and I need. Fitness apps don't work well because they are not geared for people with POTS and PEM. This is the very first app that warns me when I have to SLOW DOWN and the monthly reports help my doctors get a better picture of how I'm doing.” – Lesli “Visible has been life changing making an invisible illness visible. It has been credibly validating to have concrete evidence to show to others about what is going on behind the scenes." – Eleanor Visible is not intended to provide medical services such as diagnosis, cure, mitigation, prevention, or treatment of any disease or medical condition. The app is not a substitute for the advice of a medical professional based on your personal circumstances. Always consult a doctor before making any medical decisions. For technical support, reach out to: [info@makevisible.com](mailto:info@makevisible.com) Privacy policy available at: https://www.makevisible.com/privacy
Screenshots
Verdict
The clearest difference is review sentiment: Visible at 89% against Electrolyte's 40%. Visible also leads on update cadence (fortnightly vs every 7 months) and ratings volume (3.7K vs 2). Electrolyte's advantage is monetization model (free vs free with in-app purchases) and rating (5.0 vs 4.8). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Electrolyte holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Visible has 3.7K ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 40% of Electrolyte's written reviews are positive against 89% of Visible's, so the app with the better star average is not the one people write more warmly about.
Electrolyte ships an update every 7 months, Visible fortnightly. Both last shipped on November 3, 2026.
| Parameter | Electrolyte | Visible |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 4.8 (3.7K ratings) |
| Positive reviews | 40.0% of reviews | 88.9% of reviews — better |
| Number of ratings | 2 | 3.7K — better |
| Update frequency | Every 7 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod, Apple Watch — better | iPhone, iPod |
| Requires iOS | 13.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 5 MB | 192 MB |
| Age rating | 4+ | 12+ |
| Developer | Martspec LLC | Visible Health Inc. (US) |
Customer experience
Electrolyte
Visible
Bugs and requests
Electrolyte
Not enough reviews yet to summarise bugs or requests.
Visible
Reported bugs
3 issues- App crashes or freezes on certain devices
- Heart rate measurement issues with multi-camera phones
- Inconsistent sync and data tracking
Requested features
5 requests- Dark mode option
- Ability to track sleep quality and patterns
- Integration with Apple Health or other health platforms
- More customization options for symptoms and activities
- Improved data export and sharing capabilities
In-app purchases
Electrolyte
No in-app purchases
Visible
No in-app purchases









