# ZeFit²

> Smart wristband companion app for activity, sleep, and smartphone notifications. (iPhone/iPad app by Kronoz LLC.)

- Source: https://appshunter.io/ios/app/zefit/id1012864175 (this page in markdown: same URL + `.md`)
- Developer: [Kronoz LLC](https://appshunter.io/developer/873887504)
- Category: Health & Fitness, Sports
- Price: Free
- Rating: 2.11/5 from 9 App Store ratings · 12 written reviews indexed
- Age rating: 4+
- Requires: iOS 7.0 · 15 MB
- Languages: Dutch, English, French, German, Italian, Japanese, Polish, Portuguese, Russian, Chinese and 2 more
- Released: 2015-07-16
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/zefit/id1012864175/reviews.md

## What is ZeFit²?

** REQUIRES MyKronoz ZeFit² or ZeFit² Pulse TO USE THIS APP **
Wear ZeFit² and Get the App to stay fit and connected to your phone 24/7

ZeFit² & ZeFit² Pulse are IP67 water-resistant smart wristbands with touchscreen that track your daily activity and sleep quality. When synced to a smartphone via Bluetooth 4.0, ZeFit² shows notifications of calls, SMS, emails, calendar events and social media activity.

- TRACK YOUR STEPS, DISTANCE AND CALORIES
- MEASURE YOUR HEART RATE (ZeFit² Pulse only)
- MONITOR YOUR SLEEP TIME AND QUALITY
- SYNC YOUR DATA WIRELESSLY
- SET DAILY GOALS AND REMINDERS
- ANALYZE YOUR PROGRESS
- VIEW INCOMING CALLS
- GET NOTIFIED ON YOUR WRIST


* ZeFit² will help you stay fit and connected throughout the day*


Learn more about ZeFit² Collection at http://www.mykronoz.com/collections/ZeFit²/ & http://www.mykronoz.com/collections/ZeFit2pulse/

System requirements: iOS 7+, iPhone 4 S, iPhone 5, 5c, 5s, 6, 6 Plus, 6s, 6s Plus

iPad Mini, iPad 3, iPad 4, iPad Air, iPod Touch 5th Generation

## Key features

- Track steps, distance, and calories
- Monitor sleep time and quality
- Measure heart rate (Pulse model)
- Sync data wirelessly
- Set daily goals and reminders
- View incoming calls and notifications

## Recent user reviews (10 of 12)

All indexed reviews: https://appshunter.io/ios/app/zefit/id1012864175/reviews.md

### 1/5 — UPDATE YOUR SOFTWARE

*2018-09-05, version 1.0.9*

Not compatible with iPhone 6. Please please please update your software. If things don’t work why should I buy it

### 1/5 — No longer linking to my iPhone 7+

*2017-07-10, version 1.0.9*

My ZeFit will no longer link with my iPhone 7+. I've tried turning my Bluetooth off and on. Powering my phone down, and also running the battery down on my ZeFit and recharging it. Nothing has worked.
Please advise.

### 2/5 — Won't connect to server

*2017-07-02, version 1.0.9*

The tracker suddenly stopped linking to the server and updating stats on app. It'll endlessly loop "Loading" and never gets anywhere...

### 3/5 — Syncing Issues

*2017-04-18, version 1.0.9*

I loved this watch when I had my iPhone 5. Now I have a 7 & I can't get it to pair! Please let me know when you have an update!

### 3/5 — Stopped working all of a sudden...

*2016-12-08, version 1.0.9*

Just stopped syncing all of a sudden. Tries to sync and "Failed" every time! I don't think it's intended for the 7S plus yet... Please update!

### 3/5 — Great when it actually pairs with it

*2016-11-06, version 1.0.9*

Love this thing but half the time the connection fails and end up re-setting it or just not deal with syncing it to your phone. They need to update the software and connection with the Bluetooth. I have an iPhone 7 and it's not very compatible with it

### 5/5 — its good

*2016-03-22, version 1.0.7*

perfect and relleability

### 1/5 — No funciona en iphone6 ios9.2

*2016-02-18, version 1.0.5*

Solución: borrar e instalar de nuevo la app.

Solution: Delete and Install app again
--------------------
--------------------

Con la ultima actualización de Enero del 2016, se cierra y no funciona!!!! 😔

Iphone 6 con ios 9.2
Ayuda!!!! Help!!!!

### 1/5 — Does not work

*2016-02-16, version 1.0.5*

Worst app and product ever. Rarely works and now it won't even connect to the application. I would suggest to get a different product don't waste your time with this one. I regret it.

### 3/5 — A problem

*2016-02-01, version 1.0.5*

I still can't access the app since the latest update. Please fix it! Thx! (:

## Frequently asked questions about ZeFit²

### What devices are compatible with ZeFit²?

ZeFit² requires a MyKronoz ZeFit² or ZeFit² Pulse smart wristband to function. The app itself is compatible with iOS 7+ devices, including iPhone 4S and later, iPad Mini, iPad 3, iPad 4, iPad Air, and iPod Touch 5th Generation.

### Does ZeFit² track heart rate?

The ZeFit² app can measure heart rate, but this feature is exclusive to the ZeFit² Pulse model of the smart wristband. The standard ZeFit² model does not have heart rate monitoring capabilities.

### How often is ZeFit² updated?

The latest version of ZeFit² is 1.0.9, which was last updated on May 3, 2016. This indicates the app has not received updates in several years.

### What is the user sentiment for ZeFit²?

Based on the provided data, ZeFit² has a rating of 2.1 stars from 9 ratings. This suggests a generally negative user sentiment and potential dissatisfaction with the app's performance or features.

### Can ZeFit² be used offline?

While the app syncs data wirelessly, the core functionality of tracking activity and sleep relies on the connected ZeFit² or ZeFit² Pulse wristband. To view synced data and notifications, a Bluetooth connection to a smartphone is required.

### What kind of notifications does ZeFit² provide?

When synced to a smartphone, ZeFit² displays notifications for incoming calls, SMS messages, emails, calendar events, and social media activity directly on the wristband's touchscreen.

### What are the age requirements for ZeFit²?

ZeFit² has an age rating of 4+, making it suitable for children and adults. However, it requires a compatible MyKronoz smart wristband to be used.

## Version history (last 1 release)

### 1.0.9 — 2016-05-03

This app has been updated by Apple to display the Apple Watch app icon.

- Enhances stability with ZeFit2 Pulse
- Miscellaneous bug fixing

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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)

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.*