# Fasty vs KetoBM

The clearest difference is in-app purchases: KetoBM at none against Fasty's 3. KetoBM also leads on update cadence (fortnightly vs every 9 months) and rating (5.0 vs 4.7). Fasty's advantage is ratings volume (1.6K vs 2). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Fasty sells 3 in-app purchases, starting at $9.99 per 7 days. KetoBM asks for nothing beyond the download.

KetoBM holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Fasty has 1.6K ratings behind it against 2, so its average is the more settled of the two.

Fasty ships an update every 9 months, KetoBM fortnightly. The most recent releases landed on November 5, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Fasty | KetoBM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (1.6K ratings)](https://appshunter.io/ios/app/fasty-intermittent-fasting/id6744280079/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/ketobm/id6755744287/reviews)** |
| Number of ratings | **1.6K** | 2 |
| Positive reviews | 7.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 9 months | **Fortnightly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 5 MB | 69 MB |
| Requires iOS | 16.5 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Gabe Rogers](https://appshunter.io/developer/1584630702) | [KetoBM](https://appshunter.io/developer/1856037970) |

## What reviewers say

### Fasty

[App page](https://appshunter.io/ios/app/fasty-intermittent-fasting/id6744280079)

This app offers a straightforward and privacy-focused way to track intermittent fasting. It provides tools for timing fasts, monitoring weight and BMI, and maintaining progress streaks without requiring sign-up or displaying ads.

**Highlights:** One-tap fasting timer, Multiple fasting programs, Custom fast durations, Weight tracking, BMI tracking, Progress and streak tracking, Ad-free experience

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $9.99 | per 7 days |
| Monthly | $24.99 | per month |
| Annual | $34.99 | per year |


### KetoBM

[App page](https://appshunter.io/ios/app/ketobm/id6755744287)

This app works with a connected device to precisely track and analyze your blood glucose and ketone levels. It offers seamless integration, real-time measurements, and clear data visualization to help you understand your metabolic health and make informed decisions.

**Highlights:** Seamless device integration via Bluetooth, Accurate real-time glucose & ketone readings, Detailed trend and history analysis, Comprehensive metabolic statistics, Easy-to-use logbook for biomarker data, Clean and intuitive user interface

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Fasty free?

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

### Is KetoBM free?

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

### Which has better reviews, Fasty or KetoBM?

KetoBM is rated higher. Fasty averages 4.7 out of 5 from 1.6K ratings, while KetoBM averages 5.0 from 2 ratings.

### Do Fasty or KetoBM have ads?

Neither Fasty nor KetoBM shows ads.

### Which is updated more often, Fasty or KetoBM?

Fasty ships an update every 9 months, and KetoBM fortnightly. Most recently, Fasty was updated on November 5, 2026 and KetoBM on October 30, 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.*