# ZeFit⁴

> Activity tracker app for steps, sleep, notifications, and remote control. (iPhone/iPad app by Kronoz LLC.)

- Source: https://appshunter.io/ios/app/zefit/id1254313578 (this page in markdown: same URL + `.md`)
- Developer: [Kronoz LLC](https://appshunter.io/developer/873887504)
- Category: Health & Fitness, Lifestyle
- Price: Free
- Rating: 4.30/5 from 74 App Store ratings · 50 written reviews indexed
- Age rating: 4+
- Requires: iOS 9.0 · 41 MB
- Languages: American English, Danish, Dutch, French (France), German (Germany), Hebrew, Italian, Japanese, Polish, European Portuguese and 7 more
- Released: 2017-08-25
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/zefit/id1254313578/reviews.md

## What is ZeFit⁴?

** THIS APP REQUIRES ZeFit4 or ZeFit4HR ACTIVITY TRACKER TO BE USED **

ZeFit4 is a stylish activity tracker with color touchscreen that tells the time, tracks steps, distance, calories burned and sleep quality.

From ZeFit4 free mobile app, you can choose a watch face from a variety of designs, set daily goals and reminders but also monitor your results on a daily basis. The app helps you to set-up a fitness routine, giving you the possibility to adjust your goals and check your results on a daily basis.

Suffering from a lack of motivation? If you have been inactive for too long, ZeFit4 “Inactivity Alert” encourages you to move about throughout the day with a gentle vibrating reminder.

When synced to a smartphone via Bluetooth, ZeFit4 shows notifications of calls, SMS, emails, calendar events and social media activity. 

ZeFit4 gives you the ability to control your music and take pictures from your watch, without having to look at your phone. 

In addition, ZeFit4 features an Anti-theft alarm that alerts you when your paired device is too far away and a “Find my phone” function that helps you to track it down. 

Staying connected has never been easier.


*  FEATURES *

- Keep track of your daily activity
- Monitor your sleep
- Check your performance level and analyze your progress with the activity dashboard

- Get notified on your wrist (SMS, emails, calendar event, social media)
- Set up daily goals

- Set daily reminders
- Anti-lost alert

- Find your phone

- Take pictures remotely
- Music control
- Watch faces selection
- Wireless synch

- Integrate with the Health app

To learn more about ZeFit4 and ZeFit4 HR: www.mykronoz.com


System requirements: 
iOS 8+, iPhone 4s, iPhone 5, 5c, 5s, 6, 6 Plus, 6s, 6s Plus, iPhone SE, iPhone 7 
iPad Mini, iPad 3, iPad 4, iPad Air, iPad Pro, iPod Touch 5th generation

## Key features

- Track daily activity (steps, distance, calories)
- Monitor sleep quality
- Receive smartphone notifications (calls, SMS, emails, social media)
- Set daily goals and reminders
- Inactivity alerts
- Remote music control and camera shutter
- Anti-lost and find my phone functions

## Recent user reviews (10 of 50)

All indexed reviews: https://appshunter.io/ios/app/zefit/id1254313578/reviews.md

### 5/5 — 👍

*2021-11-08, version 1.17*

This is really good meanings I’ve had it for two years and it still works

### 2/5 — The App closes suddenly

*2020-09-06*

App needs to be checked because every time I open to see my information it closes suddenly!

### 4/5 — good

*2020-07-10, version 1.17*

法庭t r f j h g he

### 4/5 — ZeFit4

*2020-05-13, version 1.17*

Perfect fit, long battery life, easy to set up..

### 4/5 — Works well!

*2020-02-06, version 1.17*

It’s a great smart watch for good prize!

### 1/5 — App is shutting down. Please fix

*2019-12-26, version 1.17*

App is shutting down as you try to get settings done. Might stay open 12 seconds then it will just shut down. Tried going out of app and reopening no difference, also tried shutting down app and reloading , and tried to restart phone. .. keeps doing the same.

### 5/5 — Good

*2019-12-21, version 1.17*

Very good easy to use love the sleep tracker

### 5/5 — Perfect for all my needs!

*2019-12-04, version 1.17*

I needed to keep an eye on my heartbeat and this does the job perfectly with numerous extra functions.

### 1/5 — App is crashing

*2019-11-16, version 1.17*

App is crashing. Stays on for no longer than 10-15 seconds. 

For developer:
 I can send you a video if you want to see how it happens. Please fix and let me know to complete set up on my phone.

### 5/5 — Best reminder

*2019-11-06, version 1.16*

This helped me when I forgot my phone silent so when someone calls this watch it reminds you that that person called me

## Frequently asked questions about ZeFit⁴

### What does the ZeFit4 app do?

The ZeFit4 app syncs with the ZeFit4 and ZeFit4HR activity trackers to help you monitor your daily activity like steps, distance, calories burned, and sleep quality. It also allows you to set daily goals, receive inactivity alerts, and view smartphone notifications on your wrist.

### What are the main features of the ZeFit4 app?

Key features include tracking daily activity and sleep, setting personalized goals and reminders, receiving notifications for calls, SMS, emails, and social media, controlling music playback, taking pictures remotely, and utilizing anti-lost and find my phone functions.

### Is the ZeFit4 app free to use?

Yes, the ZeFit4 app is free to download and use. It requires the purchase of a ZeFit4 or ZeFit4HR activity tracker to function.

### What devices are compatible with the ZeFit4 app?

The ZeFit4 app is compatible with iOS devices running iOS 8 or later, including various iPhone models from iPhone 4s to iPhone 7, as well as iPads and iPod Touch (5th generation).

### How does the inactivity alert work?

The 'Inactivity Alert' feature is designed to encourage movement. If you have been inactive for too long, the ZeFit4 tracker will provide a gentle vibrating reminder to prompt you to get up and move.

## Version history (last 5 releases)

### 1.17 — 2019-11-12

Improve stability and usability of the app.

### 1.16 — 2019-09-23

Improve stability and usability of the app

### 1.15 — 2019-07-15

- Miscelanious bugs fixing

### 1.14 — 2019-06-16

- Support MyKronoz app data migration

### 1.13 — 2019-01-25

- Fixed weather not working issue
- Fixed various minor bugs

## Apps similar to ZeFit⁴

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## More apps by Kronoz LLC

- [ZeFit](https://appshunter.io/ios/app/zefit/id873887501)
- [ZeWatch](https://appshunter.io/ios/app/zewatch/id906609572)
- [ZeBracelet²](https://appshunter.io/ios/app/zebracelet/id910041713)
- [ZeClock](https://appshunter.io/ios/app/zeclock/id933688537)
- [ZeCircle](https://appshunter.io/ios/app/zecircle/id961601713)
- [ZeFit²](https://appshunter.io/ios/app/zefit/id1012864175)

All apps by Kronoz LLC: https://appshunter.io/developer/873887504

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*