# FireFlow vs Rayvolution

The clearest difference is ads: FireFlow at none against Rayvolution's shown. Rayvolution's advantage is device support (3 vs 1) and iOS requirement (14.0 vs 16.0). On price, update cadence 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.

FireFlow ships an update every 3 weeks, Rayvolution fortnightly. The most recent releases landed on October 10, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | FireFlow | Rayvolution |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (67 ratings)](https://appshunter.io/ios/app/fireflow/id6746819275/reviews)** | — |
| Number of ratings | **67** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Ad-supported | — |
| Size | 38 MB | 123 MB |
| Requires iOS | 16.0 | **14.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Leafy Lotus LLC](https://appshunter.io/developer/1818676088) | [Rayvolution, LLC](https://appshunter.io/developer/1774029664) |

## What reviewers say

### FireFlow

[App page](https://appshunter.io/ios/app/fireflow/id6746819275)

Browse and purchase class packs or memberships. View and filter the class schedule to find the perfect fit for your routine. Manage your reservations and keep track of upcoming classes to stay organized and committed to your fitness goals.

**Highlights:** Purchase class packs and memberships, Browse and filter class schedule, Manage class reservations, Track upcoming classes, Stay organized for fitness goals

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### Rayvolution

[App page](https://appshunter.io/ios/app/rayvolution/id6747745557)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is FireFlow free?

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

### Is Rayvolution free?

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

### Do FireFlow or Rayvolution have ads?

Rayvolution shows ads; FireFlow does not.

### Which is updated more often, FireFlow or Rayvolution?

FireFlow ships an update every 3 weeks, and Rayvolution fortnightly. Most recently, FireFlow was updated on October 10, 2026 and Rayvolution 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.*