# Heatwise Studio vs Hydro AI

The clearest difference is in-app purchases: Heatwise Studio at none against Hydro AI's 2. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Hydro AI sells 2 in-app purchases, starting at $6.99 per month. Heatwise Studio asks for nothing beyond the download.

## The numbers

| Metric | Heatwise Studio | Hydro AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (703 ratings)](https://appshunter.io/ios/app/heatwise-studio/id1504908056/reviews)** | — |
| Number of ratings | **703** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 weeks | — |
| Monetization | Free with in-app purchases | — |
| Size | 38 MB | 67 MB |
| Requires iOS | **16.0** | 16.4 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Heatwise](https://appshunter.io/developer/1472501563) | [Xuan Hieu Le](https://appshunter.io/developer/1877543184) |

## What reviewers say

### Heatwise Studio

[App page](https://appshunter.io/ios/app/heatwise-studio/id1504908056)

Book your next sauna session with this app. Browse studio locations, view class schedules, and manage your reservations. Purchase classes and workshops, and update your account details all in one place.

**Highlights:** Find and book sauna sessions, View studio locations, Check class schedules, Review existing reservations, Purchase classes and workshops, Manage your account

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

**In-app purchases:** none


### Hydro AI

[App page](https://appshunter.io/ios/app/hydro-ai-water-tracker/id6785374266)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hydro AI Premium Monthly | $6.99 | per month |
| Hydro AI Premium Yearly | $39.99 | per year |


## Frequently asked questions

### Is Heatwise Studio free?

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

### Is Hydro AI free?

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

### Do Heatwise Studio or Hydro AI have ads?

Neither Heatwise Studio nor Hydro AI shows ads.

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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.*