# Health Assistant Link vs Hydro Dots

The clearest difference is ads: Health Assistant Link at none against Hydro Dots's shown. Health Assistant Link also leads on iOS requirement (17.6 vs 26.0). Hydro Dots's advantage is update cadence (daily vs every 3 weeks). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Health Assistant Link sells 2 in-app purchases, starting at $1.99 per month and Hydro Dots sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Health Assistant Link ships an update every 3 weeks, Hydro Dots daily. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Health Assistant Link | Hydro Dots |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.4 (5 ratings)](https://appshunter.io/ios/app/health-assistant-link/id6745420767/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Daily** |
| Monetization | Subscription | — |
| Size | 11 MB | 43 MB |
| Requires iOS | **17.6** | 26.0 |
| Devices | iPhone, Apple Watch | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Greg Thomas](https://appshunter.io/developer/1812155127) | [Kengo Tate](https://appshunter.io/developer/1458012620) |

## What reviewers say

### Health Assistant Link

[App page](https://appshunter.io/ios/app/health-assistant-link/id6745420767)

This app securely syncs your health data directly from your iPhone to your Home Assistant instance. It offers background synchronization and integrates with iOS Shortcuts for custom automations. Enjoy private health data management without relying on third-party cloud services.

**Highlights:** Background health data sync, Direct iPhone to Home Assistant sync, No cloud or third-party storage, iOS Shortcuts integration, Private health data management

**Features:** Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $1.99 | per month |
| Yearly Subscription | $19.99 | per year |


### Hydro Dots

[App page](https://appshunter.io/ios/app/hydro-dots/id6794577673)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| A drop | $0.99 | one-time |
| A glass | $2.99 | one-time |
| A bottle | $5.99 | one-time |
| Pro — Founding Member | $5.99 | one-time |


## Frequently asked questions

### Is Health Assistant Link free?

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

### Is Hydro Dots free?

Hydro Dots is free to download, with in-app purchases available.

### Do Health Assistant Link or Hydro Dots have ads?

Hydro Dots shows ads; Health Assistant Link does not.

### Which is updated more often, Health Assistant Link or Hydro Dots?

Health Assistant Link ships an update every 3 weeks, and Hydro Dots daily. Most recently, Health Assistant Link was updated on November 5, 2026 and Hydro Dots on October 31, 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.*