# HydraIQ vs むくみ予報

The clearest difference is ads: むくみ予報 at none against HydraIQ's shown. HydraIQ's advantage is update cadence (every 5 days vs every 5 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. HydraIQ sells 2 in-app purchases, starting at $1.99 per month and むくみ予報 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

HydraIQ ships an update every 5 days, むくみ予報 every 5 weeks. The most recent releases landed on October 6, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | HydraIQ | むくみ予報 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 5 days** | Every 5 weeks |
| Size | 10 MB | 6 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone, Apple Watch | iPhone, Apple Watch |
| Age rating | 12+ | 12+ |
| Developer | [Maddisys Limited](https://appshunter.io/developer/399854564) | [kazunari aoki](https://appshunter.io/developer/6774180811) |

## What reviewers say

### HydraIQ

[App page](https://appshunter.io/ios/app/hydraiq-smart-hydration/id6761833957)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HydraIQ Pro Monthly | $1.99 | per month |
| HydraIQ Pro Annual | $14.99 | per year |


### むくみ予報

[App page](https://appshunter.io/ios/app/id6796861479)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Puffiness Forecast Pro | $9.99 | one-time |


## Frequently asked questions

### Is HydraIQ free?

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

### Is むくみ予報 free?

むくみ予報 is free to download, with in-app purchases available.

### Do HydraIQ or むくみ予報 have ads?

HydraIQ shows ads; むくみ予報 does not.

### Which is updated more often, HydraIQ or むくみ予報?

HydraIQ ships an update every 5 days, and むくみ予報 every 5 weeks. Most recently, HydraIQ was updated on October 6, 2026 and むくみ予報 on October 11, 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.*