# Z vs Dooinwell Link

The clearest difference is in-app purchases: Z at none against Dooinwell Link's 2. Z also leads on iOS requirement (7.0 vs 15.0). Dooinwell Link's advantage is update cadence (every 4 weeks vs every 3 months) and device support (4 vs 2). On price and ads there is nothing between them.

Both are free to download. Dooinwell Link sells 2 in-app purchases, starting at $6.49 per month. Z asks for nothing beyond the download.

Z ships an update every 3 months, Dooinwell Link every 4 weeks. The most recent releases landed on September 8, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Z | Dooinwell Link |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 4 weeks** |
| Size | 26 MB | 23 MB |
| Requires iOS | **7.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Heiman Technology Co., Ltd.](https://appshunter.io/developer/1060327146) | [Dooinwell](https://appshunter.io/developer/1515363425) |

## What reviewers say

### Z

[App page](https://appshunter.io/ios/app/z-smart/id1102302983)

**Features:** macOS Compatibility

**In-app purchases:** none


### Dooinwell Link

[App page](https://appshunter.io/ios/app/dooinwell-link/id1523282931)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 older adult coverage | $6.49 | per month |
| 1 older adult coverage | $52.99 | per year |


## Frequently asked questions

### Is Z free?

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

### Is Dooinwell Link free?

Dooinwell Link is free to download, with in-app purchases available.

### Do Z or Dooinwell Link have ads?

Neither Z nor Dooinwell Link shows ads.

### Which is updated more often, Z or Dooinwell Link?

Z ships an update every 3 months, and Dooinwell Link every 4 weeks. Most recently, Z was updated on September 8, 2026 and Dooinwell Link on September 24, 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.*