# InFuel vs KetOne

The clearest difference is in-app purchases: InFuel at none against KetOne's 2. KetOne's advantage is update cadence (every 2 months vs every 10 months) and device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. KetOne sells 2 in-app purchases, starting at $19.99 per 3 months. InFuel asks for nothing beyond the download.

InFuel ships an update every 10 months, KetOne every 2 months. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | InFuel | KetOne |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ketone-fasting-tracker-easy/id6753320512/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 2 months** |
| Monetization | — | Free with in-app purchases |
| Size | 2 MB | 73 MB |
| Requires iOS | **18.0** | 18.2 |
| Devices | iPhone | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Fishybear LLC](https://appshunter.io/developer/386484263) | [Oriana Isabel Leal Ramos](https://appshunter.io/developer/1843461781) |

## What reviewers say

### InFuel

[App page](https://appshunter.io/ios/app/infuel/id6743775122)

**Features:** macOS Compatibility

**In-app purchases:** none


### KetOne

[App page](https://appshunter.io/ios/app/ketone-fasting-tracker-easy/id6753320512)

This app helps users plan and track intermittent fasting schedules, monitor activity, and organize nutrition. It offers a comprehensive system for long-term consistency, reducing the need for multiple health apps.

**Highlights:** Intermittent fasting timer, Custom fasting schedules, Activity and workout tracking, AI-assisted meal suggestions, Calorie and macro tracking, Hydration reminders, Apple Health integration

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Reset Cycle | $19.99 | per 3 months |
| Mastery Cycle | $44.99 | per year |


## Frequently asked questions

### Is InFuel free?

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

### Is KetOne free?

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

### Do InFuel or KetOne have ads?

Neither InFuel nor KetOne shows ads.

### Which is updated more often, InFuel or KetOne?

InFuel ships an update every 10 months, and KetOne every 2 months. Most recently, InFuel was updated on October 25, 2026 and KetOne on October 28, 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.*