# Flex Fusion Studios vs Sweat 408

The clearest difference is ads: Flex Fusion Studios at none against Sweat 408's shown. Sweat 408's advantage is update cadence (fortnightly vs every 6 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

Flex Fusion Studios ships an update every 6 months, Sweat 408 fortnightly. The most recent releases landed on October 24, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Flex Fusion Studios | Sweat 408 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (16 ratings)](https://appshunter.io/ios/app/sweat-408/id6763643096/reviews)** |
| Number of ratings | — | **16** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | **Fortnightly** |
| Monetization | — | Free with in-app purchases |
| Size | 121 MB | 37 MB |
| Requires iOS | 16.4 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Sutra Fitness, Inc.](https://appshunter.io/developer/914371834) | [Sweat Wellness Group LLC](https://appshunter.io/developer/1895414198) |

## What reviewers say

### Flex Fusion Studios

[App page](https://appshunter.io/ios/app/flex-fusion-studios/id6752585491)

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

**In-app purchases:** none


### Sweat 408

[App page](https://appshunter.io/ios/app/sweat-408/id6763643096)

Browse and book fitness classes, manage your schedule, and purchase class packs or memberships. Filter classes by type to find the perfect workout for your routine and stay committed to your fitness goals.

**Highlights:** Purchase class packs and memberships, Browse class schedule, Filter classes by type, Manage class reservations, Track upcoming classes

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Flex Fusion Studios free?

Flex Fusion Studios is free to download, with no in-app purchases.

### Is Sweat 408 free?

Sweat 408 is free to download, with no in-app purchases.

### Do Flex Fusion Studios or Sweat 408 have ads?

Sweat 408 shows ads; Flex Fusion Studios does not.

### Which is updated more often, Flex Fusion Studios or Sweat 408?

Flex Fusion Studios ships an update every 6 months, and Sweat 408 fortnightly. Most recently, Flex Fusion Studios was updated on October 24, 2026 and Sweat 408 on November 5, 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.*