# 도들 vs 0zone

The clearest difference is device support: 도들 at 3 against 0zone's 1. On price, update cadence, ads 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.

도들 ships an update every 6 days, 0zone every 3 days. The most recent releases landed on September 10, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | 도들 | 0zone |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 87.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 days | **Every 3 days** |
| Monetization | Free | — |
| Size | 12 MB | 4 MB |
| Requires iOS | 18.0 | 18.0 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [MissionFingers](https://appshunter.io/developer/1546717828) | [Sang Min Kim](https://appshunter.io/developer/1625895027) |

## What reviewers say

### 도들

[App page](https://appshunter.io/ios/app/id6599424502)

This app helps runners optimize their training by providing real-time alerts for heart rate and pace. It offers various modes for different training goals, including custom workouts and pacemaker simulations, all with voice guidance that doesn't interrupt music.

**Highlights:** Heart Rate Setting Mode with Apple Watch alerts, Pace Setting Mode with vibration notifications, Pacemaker Mode with real-time distance and pace comparison, Custom Workout Mode for interval training, Voice guidance for pace and workout sessions, Works with Apple Watch Series 4 and later

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### 0zone

[App page](https://appshunter.io/ios/app/0zone/id6739350281)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 도들 free?

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

### Is 0zone free?

0zone is free to download, with no in-app purchases.

### Do 도들 or 0zone have ads?

Neither 도들 nor 0zone shows ads.

### Which is updated more often, 도들 or 0zone?

도들 ships an update every 6 days, and 0zone every 3 days. Most recently, 도들 was updated on September 10, 2026 and 0zone on September 17, 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.*