# Fastable vs ONE

The clearest difference is ads: ONE at none against Fastable's shown. Fastable's advantage is update cadence (every 2 weeks vs every 4 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Fastable sells 3 in-app purchases, starting at $2.99 per month and ONE sells 6 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Fastable ships an update every 2 weeks, ONE every 4 weeks. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Fastable | ONE |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/oneintermittent-fasting/id6759722688/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 4 weeks |
| Monetization | — | Freemium |
| Size | 55 MB | 49 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 17+ |
| Developer | [Islambek Abdykarim Uulu](https://appshunter.io/developer/1866532694) | [Create Rush](https://appshunter.io/developer/1880351509) |

## What reviewers say

### Fastable

[App page](https://appshunter.io/ios/app/fastable-intermittent-fasting/id6758980783)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fastable Pro (1 Month) | $2.99 | per month |
| Fastable Pro (1 Year) | $11.99 | per year |
| Fastable Pro (Lifetime) | $29.99 | one-time |


### ONE

[App page](https://appshunter.io/ios/app/oneintermittent-fasting/id6759722688)

This app simplifies intermittent fasting with a one-tap timer and progress tracker. It guides users through fasting stages, offers various plans, and provides insights into body changes. The focus is on building consistent habits without unnecessary complexity.

**Highlights:** One-tap fasting timer, Live fasting stage tracking, Multiple fasting plan options, Daily streak tracking, Weight and water tracking, AI-powered progress summaries, Offline functionality

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Standard Weekly | $2.99 | per 7 days |
| Premium Weekly | $4.99 | per 7 days |
| Standard Monthly | $4.99 | per month |
| Premium Monthly | $9.99 | per month |
| Standard Yearly | $49.99 | per year |
| Premium Yearly | $99.99 | per year |


## Frequently asked questions

### Is Fastable free?

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

### Is ONE free?

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

### Do Fastable or ONE have ads?

Fastable shows ads; ONE does not.

### Which is updated more often, Fastable or ONE?

Fastable ships an update every 2 weeks, and ONE every 4 weeks. Most recently, Fastable was updated on November 9, 2026 and ONE on October 31, 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.*