Connected Hydration vs Nix Solo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Connected Hydration
This app tracks fluid and electrolyte intake by working with a proprietary wearable sensor. It measures real-time sweat and electrolyte loss to provide comprehensive hydration data.
- Real-time sweat/electrolyte loss measurement
- Fluid intake tracking
- Electrolyte intake tracking
- Works with proprietary wearable sensor
- Hydration data analysis
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Connected Hydration is an app that works with Epicore Biosystems Inc.’s proprietary wearable sensor to measure real-time sweat/electrolytes loss, as well as track fluid and electrolyte intake. Disclaimer: Connected Hydration is not used for any diagnosis, treatment, or monitoring of a patient or for compensation or alleviation of disease, injury or disability. Users should seek a doctor’s advice before making any medical decisions.
Nix Solo
Monitor personal fluid and electrolyte losses in real-time during workouts. This app provides insights into sweat composition and hydration needs based on individual biology, using data from a companion biosensor.
- Real-time fluid and electrolyte loss monitoring
- Personalized sweat composition insights
- Correlates sweat data with environmental factors (Nix Index)
- Post-workout Sweat Intelligence reports
- Integration with Apple Watch and Garmin devices
- Workout type and hydration input
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To train at your peak, you can’t just train hard. You need to train in a way that’s informed by your personal biology. The Nix Solo app allows users to monitor their own personal fluid and electrolyte losses in real time during a workout using the Nix Hydration Biosensor. This companion app provides valuable insight into their unique sweat composition and individual hydration needs based on their personal biology. At Nix, we built the first biosensor to analyze sweat and provide endurance athletes with personal hydration data – scientifically validated, and delivered in real time. Once paired with the Nix Hydration Biosensor, you are on your way to understanding your hydration needs with Nix Solo, our individual monitoring app. We’re the first hydration biosensor of its kind — the only pod, patch, and free app combination to: - Evaluate the electrochemical biomarkers in your sweat - Send real-time updates to your phone, Apple Watch, Garmin Watch, or Garmin Bike Computer - Correlate your sweat data and your training environment with the Nix Index – a composite index of six environmental factors: temperature, humidity, dew point, altitude, wind speed, and solar load - Provide post workout Sweat Intelligence via insights on your Sweat Profile including fluid loss rate, electrolyte loss rate and sweat composition metrics Before your workout, tell the Nix Solo app what type of workout you’re doing and what you’ll be hydrating with. You can also consult the Nix Index to see how your environment impacts your hydration needs. Once you start sweating, our single-use patch begins measuring and analyzing your fluid and electrolyte losses minute by minute- metrics that represent your unique “sweat composition.” This data is instantly streamed to our app, and can also be shared with devices like your Apple Watch, Garmin Watch, and Garmin bike computer. The result is knowing when, what, and how much to drink in real time to enhance both safety and performance.
Screenshots
Verdict
The clearest difference is update cadence: Nix Solo at every 10 days against Connected Hydration's monthly. Nix Solo also leads on ratings volume (60 vs 7) and device support (4 vs 1). Connected Hydration's advantage is rating (5.0 vs 4.8). On price, ads, in-app purchases and monetization model 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.
Connected Hydration holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Nix Solo has 60 ratings behind it against 7, so its average is the more settled of the two.
Connected Hydration ships an update monthly, Nix Solo every 10 days. The most recent releases landed on September 14, 2026 and September 21, 2026 respectively.
| Parameter | Connected Hydration | Nix Solo |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (7 ratings) — better | 4.8 (60 ratings) |
| Positive reviews | — | 14.3% of reviews |
| Number of ratings | 7 | 60 — better |
| Update frequency | Monthly | Every 10 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 17.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 40 MB | 65 MB |
| Age rating | 4+ | 4+ |
| Developer | Epicore Biosystems, Inc | Nix, Inc. |
Customer experience
Connected Hydration
Nix Solo
In-app purchases
Connected Hydration
No in-app purchases
Nix Solo
No in-app purchases
Questions
Is Connected Hydration free?
Is Nix Solo free?
Which has better reviews, Connected Hydration or Nix Solo?
Do Connected Hydration or Nix Solo have ads?
Which is updated more often, Connected Hydration or Nix Solo?
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