Comparison

Connected Hydration vs Nix Solo

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

Head to head
About

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.

Highlights
  • Real-time sweat/electrolyte loss measurement
  • Fluid intake tracking
  • Electrolyte intake tracking
  • Works with proprietary wearable sensor
  • Hydration data analysis
Features
Read full description

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.

About

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.

Highlights
  • 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
Features
Read full description

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

Connected Hydration4 screens
Nix Solo4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard5 real differences · 5 level
Connected Hydration versus Nix Solo: the parameters behind the verdict, then further details
ParameterConnected HydrationNix Solo
PriceFreeFree
Rating5.0 (7 ratings) — better4.8 (60 ratings)
Positive reviews—14.3% of reviews
Number of ratings760 — better
Update frequencyMonthlyEvery 10 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhoneiPhone, iPad, iPod, Apple Watch — better
Requires iOS17.615.1 — better
Further details — not scored
Size40 MB65 MB
Age rating4+4+
DeveloperEpicore Biosystems, IncNix, Inc.

Customer experience

Connected Hydration

All ratings7 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Nix Solo

All ratings60 ratings
Positive93.3%
Neutral3.3%
Negative3.3%
Written reviews21 reviews
Positive14.3%
Neutral14.3%
Negative71.4%

In-app purchases

None

Connected Hydration

No in-app purchases

None

Nix Solo

No in-app purchases

Questions

Is Connected Hydration free?
Connected Hydration is free to download, with no in-app purchases.
Is Nix Solo free?
Nix Solo is free to download, with no in-app purchases.
Which has better reviews, Connected Hydration or Nix Solo?
Connected Hydration is rated higher. Connected Hydration averages 5.0 out of 5 from 7 ratings, while Nix Solo averages 4.8 from 60 ratings.
Do Connected Hydration or Nix Solo have ads?
Neither Connected Hydration nor Nix Solo shows ads.
Which is updated more often, Connected Hydration or Nix Solo?
Connected Hydration ships an update monthly, and Nix Solo every 10 days. Most recently, Connected Hydration was updated on September 14, 2026 and Nix Solo on September 21, 2026.

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