# FuelFlow vs Tairoku

The clearest difference is in-app purchases: Tairoku at none against FuelFlow's 2. Tairoku also leads on iOS requirement (17.0 vs 26.0). FuelFlow's advantage is ads (none vs shown). On price, update cadence and device support there is nothing between them.

Both are free to download. FuelFlow sells 2 in-app purchases, starting at $1.99 per month. Tairoku asks for nothing beyond the download.

FuelFlow ships an update fortnightly, Tairoku every 4 weeks. The most recent releases landed on October 14, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | FuelFlow | Tairoku |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/fuelflow/id6755150914/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Fortnightly** | Every 4 weeks |
| Monetization | Freemium | — |
| Size | 109 MB | 9 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone, Apple Watch | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [TheVSG LLC](https://appshunter.io/developer/1852256392) | [Daisuke Minami](https://appshunter.io/developer/1762826742) |

## What reviewers say

### FuelFlow

[App page](https://appshunter.io/ios/app/fuelflow/id6755150914)

This app helps endurance athletes optimize their nutrition and hydration during long activities. It provides real-time tracking, personalized fueling targets based on course and pace, and aids for crew and pacers. Features include offline functionality and Apple Watch integration for easy logging.

**Highlights:** Real-time nutrition and hydration tracking, Course-aware fueling targets, Adaptive UI for deep activity stages, Crew and pacer support, Offline plan functionality, Apple Watch standalone app, Audio coaching reminders

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FuelFlow Premium | $1.99 | per month |
| FuelFlow Premium | $14.99 | per year |


### Tairoku

[App page](https://appshunter.io/ios/app/tairoku-weight-tracker/id6793710172)

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

**In-app purchases:** none


## Frequently asked questions

### Is FuelFlow free?

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

### Is Tairoku free?

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

### Do FuelFlow or Tairoku have ads?

Tairoku shows ads; FuelFlow does not.

### Which is updated more often, FuelFlow or Tairoku?

FuelFlow ships an update fortnightly, and Tairoku every 4 weeks. Most recently, FuelFlow was updated on October 14, 2026 and Tairoku on October 7, 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.*