# Heatwise Studio vs POWERED on Bond

The clearest difference is update cadence: POWERED on Bond at every 4 days against Heatwise Studio's every 4 weeks. On price, ads, in-app purchases and device support 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, POWERED on Bond every 4 days. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Heatwise Studio | POWERED on Bond |
| --- | --- | --- |
| 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 | No |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 38 MB | 122 MB |
| Requires iOS | **16.0** | 16.4 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 17+ |
| Developer | [Heatwise](https://appshunter.io/developer/1472501563) | [Sutra Fitness, Inc.](https://appshunter.io/developer/914371834) |

## 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


### POWERED on Bond

[App page](https://appshunter.io/ios/app/powered-on-bond/id6802449897)

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

**In-app purchases:** none


## Frequently asked questions

### Is Heatwise Studio free?

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

### Is POWERED on Bond free?

POWERED on Bond is free to download, with no in-app purchases.

### Do Heatwise Studio or POWERED on Bond have ads?

Neither Heatwise Studio nor POWERED on Bond shows ads.

### Which is updated more often, Heatwise Studio or POWERED on Bond?

Heatwise Studio ships an update every 4 weeks, and POWERED on Bond every 4 days. Most recently, Heatwise Studio was updated on October 29, 2026 and POWERED on Bond on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*