# Nix Solo vs Dynamic Triathlete

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.

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.

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.

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.

## The numbers

| Metric | Nix Solo | Dynamic Triathlete |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (69 ratings)](https://appshunter.io/ios/app/nix-solo/id1632680170/reviews)** | [4.8 (56 ratings)](https://appshunter.io/ios/app/dynamic-triathlete/id6449952738/reviews) |
| Number of ratings | **69** | 56 |
| Positive reviews | 14.3% of reviews | **87.8% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 4 months |
| Monetization | **Free** | Subscription |
| Size | 65 MB | 95 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nix, Inc.](https://appshunter.io/developer/1625732872) | [Flexible Marketing Media Inc](https://appshunter.io/developer/1615447023) |

## What reviewers say

### Nix Solo

[App page](https://appshunter.io/ios/app/nix-solo/id1632680170)

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:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### Dynamic Triathlete

[App page](https://appshunter.io/ios/app/dynamic-triathlete/id6449952738)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Dynamic Triathlete | $9.99 | per month |
| Dynamic Triathlete | $84.99 | per year |

**What reviewers like**

- 💪 Keeps body flexible and strong
- 🧘‍♀️ Effective strength and mobility programs
- 🏃‍♂️ Excellent for triathletes
- 🩹 Aids in injury prevention and recovery
- 👍 Simple, effective, and straight to the point

**What reviewers complain about**

- 🐛 Some prehab sessions not showing in overview
- 🐌 App performance is poor, slow loading
- 🎶 Cannot turn off background music
- ❓ Difficulty finding specific exercises for pain points
- 📉 App is unstable, crashes, loses progress

**Reported bugs**

- 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

**Requested features**

- 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


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*