# BIGG vs ATHRIX

The clearest difference is update cadence: ATHRIX at every 5 days against BIGG's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

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

BIGG ships an update every 3 weeks, ATHRIX every 5 days. The most recent releases landed on October 5, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | BIGG | ATHRIX |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (332 ratings)](https://appshunter.io/ios/app/bigg/id1503408706/reviews)** | — |
| Number of ratings | **332** | — |
| Positive reviews | 51.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Monetization | Ad-supported | — |
| Size | 125 MB | 43 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Bigg Fit LLC](https://appshunter.io/developer/1541039977) | [Alexis Valin](https://appshunter.io/developer/1891341756) |

## What reviewers say

### BIGG

[App page](https://appshunter.io/ios/app/bigg/id1503408706)

Manage your fitness journey with this app designed for members of BIGG. Book classes, view daily schedules, set training goals, and access home workouts. Explore various training modalities and equipment-based programs.

**Highlights:** Book classes, View daily schedule, Set training goals, Access home workouts, Equipment-based programming, Multiple training modalities

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

**In-app purchases:** none


### ATHRIX

[App page](https://appshunter.io/ios/app/athrix/id6761764972)

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

**In-app purchases:** none


## Frequently asked questions

### Is BIGG free?

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

### Is ATHRIX free?

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

### Do BIGG or ATHRIX have ads?

Neither BIGG nor ATHRIX shows ads.

### Which is updated more often, BIGG or ATHRIX?

BIGG ships an update every 3 weeks, and ATHRIX every 5 days. Most recently, BIGG was updated on October 5, 2026 and ATHRIX on October 4, 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.*