# StellKey vs Transform40 Coaching

The clearest difference is update cadence: StellKey at fortnightly against Transform40 Coaching's every 3 months. Transform40 Coaching's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. StellKey sells 6 in-app purchases, starting at $9.99 per month and Transform40 Coaching sells 1 in-app purchase, starting at $99.99 per month. Whichever you choose, the download price is not the number that matters.

StellKey ships an update fortnightly, Transform40 Coaching every 3 months. The most recent releases landed on October 8, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | StellKey | Transform40 Coaching |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (1 ratings)](https://appshunter.io/ios/app/stellkey-chores-tracker/id1591228817/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 months |
| Monetization | Subscription | — |
| Size | 125 MB | 52 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Vaqstar](https://appshunter.io/developer/1591228819) | [BODIES BY TJ PTY LTD](https://appshunter.io/developer/1415151504) |

## What reviewers say

### StellKey

[App page](https://appshunter.io/ios/app/stellkey-chores-tracker/id1591228817)

This app helps children build healthy habits and routines through engaging, customizable programs. It offers motivational rewards and real-time progress tracking, developed with insights from child psychologists and educators.

**Highlights:** Customizable routines, Interactive rewards system, Real-time progress tracking, Expert-approved methods, Virtual friend motivation

**Features:** Family Sharing

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly base subscription | $9.99 | per month |
| Yearly bases subscription | $69.99 | per year |
| 1 Month Subscription | $4.99 | one-time |
| 12 Month Subscriptions | $39.99 | one-time |
| Lifetime Subscriptions | $59.99 | one-time |
| Lifetime Subscription | $89.99 | one-time |


### Transform40 Coaching

[App page](https://appshunter.io/ios/app/transform40-coaching/id6451001631)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Coaching | $99.99 | per month |


## Frequently asked questions

### Is StellKey free?

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

### Is Transform40 Coaching free?

Transform40 Coaching is free to download, with in-app purchases available.

### Do StellKey or Transform40 Coaching have ads?

Neither StellKey nor Transform40 Coaching shows ads.

### Which is updated more often, StellKey or Transform40 Coaching?

StellKey ships an update fortnightly, and Transform40 Coaching every 3 months. Most recently, StellKey was updated on October 8, 2026 and Transform40 Coaching on October 2, 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.*