# BActivate vs Just Fast

The clearest difference is device support: Just Fast at 3 against BActivate's —. Just Fast also leads on iOS requirement (14.0 vs 16.0). On price and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | BActivate | Just Fast |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (7 ratings)](https://appshunter.io/ios/app/just-fast-fasting-timer/id6752963711/reviews)** |
| Number of ratings | — | **7** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | — | Yes |
| Update frequency | — | Every 3 weeks |
| Monetization | — | Ad-supported |
| Size | 117 MB | 47 MB |
| Requires iOS | 16.0 | **14.0** |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Margot Paul](https://appshunter.io/developer/1660312505) | [Adrian Cabala](https://appshunter.io/developer/1841708643) |

## What reviewers say

### BActivate

[App page](https://appshunter.io/ios/app/bactivate/id6450705838)

**In-app purchases:** none


### Just Fast

[App page](https://appshunter.io/ios/app/just-fast-fasting-timer/id6752963711)

This app tracks both your fasting periods and your eating windows, offering a unique dual-countdown feature. It visualizes metabolic phases like fat burning and ketosis, supports various fasting methods, and provides insights into your progress. It's designed to be user-friendly and privacy-conscious, working entirely offline.

**Highlights:** Eating window countdown, Fasting phases visualization, Support for multiple fasting methods, Streak tracking with grace periods, Pattern insights, Weight and BMI tracking, Smart notifications, 100% offline functionality

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

**In-app purchases:** none


## Frequently asked questions

### Is BActivate free?

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

### Is Just Fast free?

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

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*