# FastTempo vs ChronoFast AI

The clearest difference is rating: ChronoFast AI at 5.0 against FastTempo's 1.0. ChronoFast AI also leads on update cadence (every 2 weeks vs every 2 months) and iOS requirement (17.0 vs 26.0). FastTempo's advantage is ads (none vs shown). On price, ratings volume, in-app purchases and monetization model there is nothing between them.

Both are free to download. FastTempo sells 1 in-app purchase, starting at $19.99 per year and ChronoFast AI sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ChronoFast AI holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

FastTempo ships an update every 2 months, ChronoFast AI every 2 weeks. The most recent releases landed on October 24, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | FastTempo | ChronoFast AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/fasttempo-fasting-timer/id6757407552/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/chronofast-ai/id6759078045/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 14 MB | 121 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone, Apple Watch | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Andrew Ford](https://appshunter.io/developer/1853471183) | [Soundarya Srinivas](https://appshunter.io/developer/1896661055) |

## What reviewers say

### FastTempo

[App page](https://appshunter.io/ios/app/fasttempo-fasting-timer/id6757407552)

This app provides a straightforward timer to help users maintain consistent eating and fasting windows. It focuses solely on timing, offering a clean visual display and seamless integration with smartwatches. Features include flexible streak tolerance and gradual fasting adjustments for beginners.

**Highlights:** 24-Hour Visual Timer, Apple Watch Integration, Flexible Streak Tolerance, Gradual Fasting Adjustments, Smart Reminders, Automatic Schedule Following, Fasting Pause Functionality

**Features:** Family Sharing, Apple Watch app

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FastTempo Premium | $19.99 | per year |


### ChronoFast AI

[App page](https://appshunter.io/ios/app/chronofast-ai/id6759078045)

This app acts as an AI coach for intermittent fasting, helping users understand if their food intake breaks their fast. It provides detailed metabolic insights, tracks progress, and offers social features for fasting with friends.

**Highlights:** AI-powered 'Did I Break My Fast?' analysis, Live Activity and Dynamic Island integration, Detailed metabolic stage tracking, Apple Health integration for activity and sleep, AI meal scan and barcode scanning, Social fasting features and leaderboards

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ChronoFast-AI-Monthly-Yearly | $4.99 | per month |
| ChronoFast-AI-Monthly-Yearly | $39.99 | per year |


## Frequently asked questions

### Is FastTempo free?

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

### Is ChronoFast AI free?

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

### Which has better reviews, FastTempo or ChronoFast AI?

ChronoFast AI is rated higher. FastTempo averages 1.0 out of 5 from 1 ratings, while ChronoFast AI averages 5.0 from 1 ratings.

### Do FastTempo or ChronoFast AI have ads?

ChronoFast AI shows ads; FastTempo does not.

### Which is updated more often, FastTempo or ChronoFast AI?

FastTempo ships an update every 2 months, and ChronoFast AI every 2 weeks. Most recently, FastTempo was updated on October 24, 2026 and ChronoFast AI 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.*