# FlöFuel vs Interval

The clearest difference is in-app purchases: FlöFuel at none against Interval's 1. FlöFuel also leads on update cadence (every 2 days vs every 10 days). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Interval sells 1 one-off in-app purchase. FlöFuel asks for nothing beyond the download.

FlöFuel ships an update every 2 days, Interval every 10 days. The most recent releases landed on October 6, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | FlöFuel | Interval |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (1 ratings)](https://appshunter.io/ios/app/flofuel/id6759410434/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 10 days |
| Monetization | Free | — |
| Size | 15 MB | 38 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Eric Bowman](https://appshunter.io/developer/1865787106) | [OLEG KLIMAKOV](https://appshunter.io/developer/1702248098) |

## What reviewers say

### FlöFuel

[App page](https://appshunter.io/ios/app/flofuel/id6759410434)

This cycling nutrition planner calculates optimal food, drink, and hydration based on ride intensity, duration, and body weight. It offers abstract targets or pantry mode with specific product scheduling, adapting to weather conditions and providing alerts.

**Highlights:** Adaptive cycling nutrition planning, Abstract targets or pantry mode, Weather-based hydration adjustments, Apple Watch companion app, Ride nutrition timeline preview, Intensity-scaled fueling, Live Activities on lock screen

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

**In-app purchases:** none


### Interval

[App page](https://appshunter.io/ios/app/interval-hiit-and-tabata-timer/id6780563425)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Interval Pro | $6.99 | one-time |


## Frequently asked questions

### Is FlöFuel free?

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

### Is Interval free?

Interval is free to download, with in-app purchases available.

### Do FlöFuel or Interval have ads?

Neither FlöFuel nor Interval shows ads.

### Which is updated more often, FlöFuel or Interval?

FlöFuel ships an update every 2 days, and Interval every 10 days. Most recently, FlöFuel was updated on October 6, 2026 and Interval on October 16, 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.*