# STRONGKIDDO vs Core Harmony

The clearest difference is ads: STRONGKIDDO at none against Core Harmony's shown. Core Harmony's advantage is iOS requirement (14.0 vs 16.0). On price, update cadence, 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.

STRONGKIDDO ships an update every 2 months, Core Harmony every 3 months. Both last shipped on October 30, 2026.

## The numbers

| Metric | STRONGKIDDO | Core Harmony |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 3 months |
| Size | 190 MB | 123 MB |
| Requires iOS | 16.0 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [FREELYKICK (THAILAND) COMPANY LIMITED](https://appshunter.io/developer/1780494665) | [CHM PILATES COMPANY LIMITED](https://appshunter.io/developer/1804094295) |

## What reviewers say

### STRONGKIDDO

[App page](https://appshunter.io/ios/app/strongkiddo/id6738378581)

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

**In-app purchases:** none


### Core Harmony

[App page](https://appshunter.io/ios/app/core-harmony/id6743706197)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is STRONGKIDDO free?

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

### Is Core Harmony free?

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

### Do STRONGKIDDO or Core Harmony have ads?

Core Harmony shows ads; STRONGKIDDO does not.

### Which is updated more often, STRONGKIDDO or Core Harmony?

STRONGKIDDO ships an update every 2 months, and Core Harmony every 3 months. Most recently, STRONGKIDDO was updated on October 30, 2026 and Core Harmony on October 30, 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.*