# Exerchain vs 0zone

The clearest difference is update cadence: 0zone at every 3 days against Exerchain's monthly. Exerchain's advantage is iOS requirement (16.2 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Exerchain ships an update monthly, 0zone every 3 days. The most recent releases landed on July 26, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Exerchain | 0zone |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.7 (12 ratings)](https://appshunter.io/ios/app/exerchain/id6508167729/reviews)** | — |
| Number of ratings | **12** | — |
| Positive reviews | 27.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 days** |
| Monetization | Free | — |
| Size | 73 MB | 4 MB |
| Requires iOS | **16.2** | 18.0 |
| Devices | **iPhone, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Exerchain](https://appshunter.io/developer/1650318370) | [Sang Min Kim](https://appshunter.io/developer/1625895027) |

## What reviewers say

### Exerchain

[App page](https://appshunter.io/ios/app/exerchain/id6508167729)

This health app uses AI to forecast your weight 1, 3, and 6 months into the future. It automatically logs activity, sleep, and body composition from supported devices, and allows manual meal entry for accurate predictions. Gain insights and personalized routines based on your unique data.

**Highlights:** AI-powered weight prediction (1, 3, 6 months), Automatic activity, sleep, and body composition logging, Manual meal entry for accurate forecasting, AI insights and personalized routines, Syncs with ExerRing, ExerScale, and popular smartwatches

**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 Exerchain free?

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

### Is 0zone free?

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

### Do Exerchain or 0zone have ads?

Neither Exerchain nor 0zone shows ads.

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

Exerchain ships an update monthly, and 0zone every 3 days. Most recently, Exerchain was updated on July 26, 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.*