# ErgData vs BFX Athlete

The clearest difference is device support: ErgData at 3 against BFX Athlete's 1. On price, update cadence, ads and in-app purchases there is nothing between them.

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

ErgData ships an update fortnightly, BFX Athlete every 10 days. The most recent releases landed on November 13, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | ErgData | BFX Athlete |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (6.5K ratings)](https://appshunter.io/ios/app/ergdata/id561716382/reviews)** | — |
| Number of ratings | **6.5K** | — |
| Positive reviews | 47.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 10 days** |
| Monetization | Free | — |
| Size | 76 MB | 55 MB |
| Requires iOS | **16.0** | 16.4 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Concept2, Inc.](https://appshunter.io/developer/446481798) | [BodyfusionX](https://appshunter.io/developer/6830226082) |

## What reviewers say

### ErgData

[App page](https://appshunter.io/ios/app/ergdata/id561716382)

This training partner app allows you to set up and customize workouts, view real-time stats, and track your progress. It syncs with a popular online logbook and offers detailed post-workout analysis. Compatible with various devices, it enhances your fitness journey with data-driven insights.

**Highlights:** Customizable workout setup, Real-time workout stats, Progress tracking, Syncs with Concept2 Logbook, Post-workout analysis, Workout of the Day feature, Voice guidance

**Features:** Apple Watch app

**In-app purchases:** none

**What reviewers like**

- 🚀 Great app
- 👍 Excellent stats
- 👍 Easy to use
- 👍 Seamless sync with Concept2 logbook
- 👍 Customizable heart rate zones

**What reviewers complain about**

- 🐛 Connection issues with PM5
- 🐛 Unreliable heart rate monitoring
- 🐛 Sync issues with Apple Health
- 🐛 Crashes and data loss
- 🐛 Frequent disconnections

**Reported bugs**

- Workout data not saving
- Heart rate data freezing
- Disconnects during workouts
- Sync issues with Apple Health and Strava
- Login issues and frequent logouts

**Requested features**

- Add friend mode
- Integrate Apple Watch support
- Add manual workout entry
- Implement landscape mode for iPad
- Integrate pace calculator


### BFX Athlete

[App page](https://appshunter.io/ios/app/bfx-athlete/id6818253386)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ErgData free?

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

### Is BFX Athlete free?

BFX Athlete is free to download, with no in-app purchases.

### Do ErgData or BFX Athlete have ads?

Neither ErgData nor BFX Athlete shows ads.

### Which is updated more often, ErgData or BFX Athlete?

ErgData ships an update fortnightly, and BFX Athlete every 10 days. Most recently, ErgData was updated on November 13, 2026 and BFX Athlete on November 10, 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.*