# Time to fast! vs ZEROBODY

The clearest difference is review sentiment: Time to fast! at 71% against ZEROBODY's 33%. Time to fast! also leads on update cadence (every 3 days vs every 3 months). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Time to fast! ships an update every 3 days, ZEROBODY every 3 months. The most recent releases landed on June 1, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | Time to fast! | ZEROBODY |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **71.4% of reviews** | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 3 months |
| Monetization | Free | Free |
| Size | 13 MB | 66 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Eunbee Kang](https://appshunter.io/developer/1640984912) | [주식회사 엘디유오](https://appshunter.io/developer/1813138419) |

## What reviewers say

### Time to fast!

[App page](https://appshunter.io/ios/app/time-to-fast/id6470159635)

Easily monitor your intermittent fasting schedule with a visual 24-hour timeline. Adjust plans, track progress, and receive timely notifications for fasting and eating periods. Save your results and review past fasting records to stay on track with your health goals.

**Highlights:** Circular 24-hour timeline, Adjustable fasting plans, Save and edit fasting results, Past fasting records review, Fasting start/end notifications, Pre-set fasting plans

**Features:** macOS Compatibility

**In-app purchases:** none


### ZEROBODY

[App page](https://appshunter.io/ios/app/zerobody/id6745605993)

This app connects to your HeavenStepper via Bluetooth to track your workouts in real-time. Set fitness goals, monitor your progress, and manage multiple user profiles for a smarter fitness routine. It also allows you to log and track your weight changes.

**Highlights:** Real-time workout data tracking, Goal setting and progress monitoring, Workout history and record management, Multi-user profile support, Weight logging and tracking

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

**In-app purchases:** none


## Frequently asked questions

### Is Time to fast! free?

Time to fast! is free to download, with no in-app purchases.

### Is ZEROBODY free?

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

### Do Time to fast! or ZEROBODY have ads?

Neither Time to fast! nor ZEROBODY shows ads.

### Which is updated more often, Time to fast! or ZEROBODY?

Time to fast! ships an update every 3 days, and ZEROBODY every 3 months. Most recently, Time to fast! was updated on June 1, 2026 and ZEROBODY on September 13, 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.*