# Heartcore vs KAI Studio

The clearest difference is ratings volume: KAI Studio at 16 against Heartcore's 4. Heartcore's advantage is device support (3 vs 1) and iOS requirement (14.0 vs 16.0). On price, rating, review sentiment and update cadence there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Heartcore against 4.9 for KAI Studio. Both are backed by a comparable volume of ratings — 4 and 16 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Heartcore ships an update every 6 weeks, KAI Studio monthly. The most recent releases landed on June 25, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Heartcore | KAI Studio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/heartcore-ca/id1190437292/reviews)** | [4.9 (16 ratings)](https://appshunter.io/ios/app/kai-studio/id6747728663/reviews) |
| Number of ratings | 4 | **16** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 6 weeks | **Monthly** |
| Monetization | Ad-supported | Ad-supported |
| Size | 154 MB | 37 MB |
| Requires iOS | **14.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [THE HEARTCORE COMPANY LLC](https://appshunter.io/developer/1451107423) | [Kai Studio Concepts LLC](https://appshunter.io/developer/1822641636) |

## What reviewers say

### Heartcore

[App page](https://appshunter.io/ios/app/heartcore-ca/id1190437292)

This app simplifies booking Megaformer classes, offering access to schedules, exclusive promotions, and last-minute openings. It provides a convenient way to manage your fitness journey and stay connected with the community.

**Highlights:** Book Megaformer classes, View class schedules, Access exclusive promotions, Get last-minute openings, View Instagram feed

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### KAI Studio

[App page](https://appshunter.io/ios/app/kai-studio/id6747728663)

Easily browse and purchase class packs or membership options. View the schedule, filter classes by type, and manage your reservations to stay organized and committed to your fitness goals.

**Highlights:** Purchase class packs and memberships, Browse class schedules, Filter classes by type, Manage class reservations, Stay organized with fitness goals

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

**In-app purchases:** none


## Frequently asked questions

### Is Heartcore free?

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

### Is KAI Studio free?

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

### Which has better reviews, Heartcore or KAI Studio?

Heartcore is rated higher. Heartcore averages 5.0 out of 5 from 4 ratings, while KAI Studio averages 4.9 from 16 ratings.

### Do Heartcore or KAI Studio have ads?

Both Heartcore and KAI Studio show ads.

### Which is updated more often, Heartcore or KAI Studio?

Heartcore ships an update every 6 weeks, and KAI Studio monthly. Most recently, Heartcore was updated on June 25, 2026 and KAI Studio on September 24, 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.*