# Zeroner Fit vs ZDfit

The clearest difference is rating: Zeroner Fit at 3.7 against ZDfit's 3.0. Zeroner Fit also leads on review sentiment (45% vs 19%) and iOS requirement (10.0 vs 12.0). On price, ratings volume, update cadence and ads there is nothing between them.

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

Zeroner Fit holds the better App Store score, 3.7 against 3.0. Both are backed by a comparable volume of ratings — 26 and 72 respectively. Written reviews point the same way: 45% of Zeroner Fit's written reviews are positive against 19% of ZDfit's.

Zeroner Fit ships an update every 6 weeks, ZDfit monthly. The most recent releases landed on September 23, 2026 and July 25, 2026 respectively.

## The numbers

| Metric | Zeroner Fit | ZDfit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (26 ratings)](https://appshunter.io/ios/app/zeroner-fit/id1519147675/reviews)** | [3.0 (72 ratings)](https://appshunter.io/ios/app/zdfit/id1669208807/reviews) |
| Number of ratings | 26 | **72** |
| Positive reviews | **45.0% of reviews** | 19.1% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Monthly** |
| Monetization | Free | Free |
| Size | 116 MB | 250 MB |
| Requires iOS | **10.0** | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [红甲 祝](https://appshunter.io/developer/906614498) | [Shenzhen Zhongdong Technology Co.Ltd](https://appshunter.io/developer/1669208809) |

## What reviewers say

### Zeroner Fit

[App page](https://appshunter.io/ios/app/zeroner-fit/id1519147675)

This app syncs with smartwatches to track various health metrics like activity, heart rate, and sleep. It also enables convenient message and call notifications on your watch and offers GPS tracking for outdoor activities. Users can set reminders and share data with Apple Health.

**Highlights:** Activity and heart rate monitoring, Blood pressure and sleep tracking, Message and call notifications on watch, GPS sports tracking, Alarm and sedentary reminders, Apple Health data sharing

**Features:** macOS Compatibility

**In-app purchases:** none


### ZDfit

[App page](https://appshunter.io/ios/app/zdfit/id1669208807)

This app pairs with a smartwatch to provide real-time fitness tracking, including steps, distance, and calories. It also monitors sleep quality and displays notifications from your smartphone, all while integrating with Apple Health.

**Highlights:** Real-time sports performance monitoring, Step, distance, and calorie tracking, Sleep quality monitoring, Smartphone notifications (SMS, calls), Multi-sport activity tracking, Apple Health integration

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Zeroner Fit free?

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

### Is ZDfit free?

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

### Which has better reviews, Zeroner Fit or ZDfit?

Zeroner Fit is rated higher. Zeroner Fit averages 3.7 out of 5 from 26 ratings, while ZDfit averages 3.0 from 72 ratings.

### Do Zeroner Fit or ZDfit have ads?

Neither Zeroner Fit nor ZDfit shows ads.

### Which is updated more often, Zeroner Fit or ZDfit?

Zeroner Fit ships an update every 6 weeks, and ZDfit monthly. Most recently, Zeroner Fit was updated on September 23, 2026 and ZDfit on July 25, 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.*