# Triathlon vs Atomic Metrix

The clearest difference is price: Atomic Metrix at Free against Triathlon's $0.99. Atomic Metrix also leads on update cadence (weekly vs every 8 months) and iOS requirement (17.0 vs 26.0). On ads, in-app purchases and device support there is nothing between them.

Atomic Metrix is free to download; Triathlon costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Triathlon ships an update every 8 months, Atomic Metrix weekly. The most recent releases landed on October 9, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Triathlon | Atomic Metrix |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/atomic-metrix/id6764720596/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Weekly** |
| Monetization | — | Free |
| Size | 6 MB | 8 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 17+ |
| Developer | [Frank Kalhoj](https://appshunter.io/developer/1102879894) | [Changjie Lu](https://appshunter.io/developer/1877039500) |

## What reviewers say

### Triathlon

[App page](https://appshunter.io/ios/app/triathlon-calc/id1104662504)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Atomic Metrix

[App page](https://appshunter.io/ios/app/atomic-metrix/id6764720596)

This app consolidates your sports data, including rides, runs, and health metrics, into a single platform. It analyzes your activities, tracks training load, and provides insights into performance changes. Plan routes and workouts, and receive readiness signals to optimize your athletic performance.

**Highlights:** Unified sports data consolidation, Activity analysis and trend comparison, Training load and performance insights, Readiness signals from health data, Route and workout planning, Apple Health integration

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

**In-app purchases:** none


## Frequently asked questions

### Is Triathlon free?

Triathlon costs $0.99, with no in-app purchases.

### Is Atomic Metrix free?

Atomic Metrix is free to download, with no in-app purchases.

### Do Triathlon or Atomic Metrix have ads?

Neither Triathlon nor Atomic Metrix shows ads.

### Which is updated more often, Triathlon or Atomic Metrix?

Triathlon ships an update every 8 months, and Atomic Metrix weekly. Most recently, Triathlon was updated on October 9, 2026 and Atomic Metrix on October 11, 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.*