# Heatwise Studio vs TBMT

The clearest difference is iOS requirement: TBMT at 13.0 against Heatwise Studio's 16.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Heatwise Studio ships an update every 4 weeks, TBMT every 5 weeks. The most recent releases landed on October 16, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Heatwise Studio | TBMT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (693 ratings)](https://appshunter.io/ios/app/heatwise-studio/id1504908056/reviews)** | — |
| Number of ratings | **693** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 5 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 38 MB | 40 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Heatwise](https://appshunter.io/developer/1472501563) | [Two Bridges Muay Thai, LLC](https://appshunter.io/developer/1800039543) |

## 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


### TBMT

[App page](https://appshunter.io/ios/app/tbmt/id6742798975)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Heatwise Studio free?

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

### Is TBMT free?

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

### Do Heatwise Studio or TBMT have ads?

Neither Heatwise Studio nor TBMT shows ads.

### Which is updated more often, Heatwise Studio or TBMT?

Heatwise Studio ships an update every 4 weeks, and TBMT every 5 weeks. Most recently, Heatwise Studio was updated on October 16, 2026 and TBMT on October 4, 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.*