Comparison

Nix Solo vs Dynamic Triathlete

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

Head to head
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.

About

Dynamic Triathlete

Enhance your triathlon performance with daily stretching, mobility, and strength training routines. Prevent injuries, improve flexibility, and accelerate recovery with comprehensive video programs. Access content across all your devices for seamless training.

Highlights
  • Daily stretching and mobility routines
  • Strength training programs (minimal equipment)
  • Injury prevention and rehabilitation programs
  • Warmups and drills for all disciplines
  • Guided roll and release techniques
  • New content added regularly
Features
Read full description

Dynamic Triathlete is the ultimate program designed specifically for triathletes who want to enhance their performance, prevent injuries, and enjoy pain-free training and racing. With our comprehensive video programs, you'll have everything you need to take your training to the next level. ■ BENEFITS OF DYNAMIC TRIATHLETE + Gain flexibility, strength, and balance with each routine + Reduce joint stiffness and improve your range of motion + Boost speed and endurance + Accelerate recovery and feel stronger than ever before + Improve posture and reduce the risk of injuries +1000s of routines to choose from with new content added all the time ■ DYNAMIC TRIATHLETE PROGRAMS Daily Stretching & Mobility - 15-20 minute daily routines that progress with you. Strength Training - Beginner, Intermediate, and Advanced programs that use minimal equipment so you can do them at home. Injury Prevention - Hip Function & Rehab Program (6 weeks), Knee Function & Rehab (6 Weeks), ITB, Posture Correction, Shin Splints, Foot Reset, and MORE Warmups & Drills - Routines to get you ready for running, biking, and swimming. Roll & Release - Guided rolling and releasing techniques to alleviate muscle tightness and speed up recovery. ■ EASY TO GET STARTED New to mobility or strength training? Get started with our 7 Day On Ramp that will walk you through the programs and how to make the most of both your time and membership. ■ AVAILABLE ACROSS YOUR DEVICES Your Dynamic Triathlete account enables access to all programming and allows you to stream videos on your iPhone, iPad, Apple TV, pliability’s website or to any AirPlay-compatible device. The videos are also downloadable to make offline viewing easier. *All payments will be paid through your iTunes Account and may be managed under Apple subscriptions after the initial payment. Subscription payments will automatically renew unless deactivated at least 24-hours before the end of the current cycle. Your account will be charged for renewal at least 24-hours prior to the end of the current cycle. Any unused portion of your free trial will be forfeited upon payment. Cancellations are incurred by disabling auto-renewal. This app is proudly powered by VidApp. If you need help with it, please head to: https://vidapp.com/app-vid-app-user-support Terms of Service: http://vidapp.com/terms-and-conditions Privacy Policy: https://vidapp.com/privacy-policym/app-vid-app-user-support

Screenshots

Nix Solo4 screens
Dynamic Triathlete4 screens

Verdict

The call

Nix Solo and Dynamic Triathlete both sit at 4.8 stars, but that hides the real split: 88% of Dynamic Triathlete's written reviews are positive against 14% of Nix Solo's. Nix Solo's advantage is in-app purchases (none vs 2) and update cadence (every 10 days vs every 4 months). On price, rating, ratings volume 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. Dynamic Triathlete sells 2 in-app purchases, starting at $9.99 per month. Nix Solo asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Nix Solo against 4.8 for Dynamic Triathlete. Both are backed by a comparable volume of ratings — 69 and 56 respectively. Written reviews are what separate them: 14% of Nix Solo's written reviews are positive against 88% of Dynamic Triathlete's.

UpkeepUpdate frequency

Nix Solo ships an update every 10 days, Dynamic Triathlete every 4 months. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

Scorecard4 real differences · 6 level
Nix Solo versus Dynamic Triathlete: the parameters behind the verdict, then further details
ParameterNix SoloDynamic Triathlete
PriceFreeFree
Rating4.8 (69 ratings) — better4.8 (56 ratings)
Positive reviews14.3% of reviews87.8% of reviews — better
Number of ratings69 — better56
Update frequencyEvery 10 days — betterEvery 4 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterSubscription
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, iPod
Requires iOS15.115.1
Further details — not scored
Size65 MB95 MB
Age rating4+4+
DeveloperNix, Inc.Flexible Marketing Media Inc

Customer experience

Nix Solo

All ratings61 ratings
Positive93.4%
Neutral3.3%
Negative3.3%
Written reviews21 reviews
Positive14.3%
Neutral14.3%
Negative71.4%

Dynamic Triathlete

All ratings52 ratings
Positive94.2%
Neutral1.9%
Negative3.8%
Written reviews49 reviews
Positive87.8%
Neutral6.1%
Negative6.1%

Bugs and requests

Nix Solo

Not enough reviews yet to summarise bugs or requests.

Dynamic Triathlete

Reported bugs

8 issues
  • Some prehab sessions don’t show up in overview
  • App performance is very poor, slow loading
  • App is unstable, crashes
  • Lost saved programming and progress
  • App sticks and doesn’t always bring up where you left off
Show 3 more
  • Repeated purchase requests at each access
  • Frequent problems with the app
  • Unclear how to use app features (e.g., adding programs to calendar)

Requested features

4 requests
  • Option to turn off background music
  • Easier way to tell the app where it hurts and get suggestions
  • More easily track progress
  • Option to change language

In-app purchases

None

Nix Solo

No in-app purchases

2 purchases

Dynamic Triathlete

Subscriptions2
  • Dynamic Triathlete7 Days trial$9.991 Month
  • Dynamic Triathlete7 Days trial$84.991 Year

Questions

Is Nix Solo free?
Nix Solo is free to download, with no in-app purchases.
Is Dynamic Triathlete free?
Dynamic Triathlete is free to download, with in-app purchases available.
Which has better reviews, Nix Solo or Dynamic Triathlete?
Nix Solo is rated higher. Nix Solo averages 4.8 out of 5 from 69 ratings, while Dynamic Triathlete averages 4.8 from 56 ratings.
Do Nix Solo or Dynamic Triathlete have ads?
Neither Nix Solo nor Dynamic Triathlete shows ads.
Which is updated more often, Nix Solo or Dynamic Triathlete?
Nix Solo ships an update every 10 days, and Dynamic Triathlete every 4 months. Most recently, Nix Solo was updated on November 7, 2026 and Dynamic Triathlete on November 3, 2026.

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