# STSK9 vs DIYK9

The clearest difference is in-app purchases: DIYK9 at none against STSK9's 1. On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. STSK9 sells 1 one-off in-app purchase. DIYK9 asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for STSK9 against 5.0 for DIYK9. Both are backed by a comparable volume of ratings — 8 and 4 respectively.

STSK9 ships an update every 2 weeks, DIYK9 fortnightly. The most recent releases landed on September 12, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | STSK9 | DIYK9 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (8 ratings)](https://appshunter.io/ios/app/stsk9/id6468565276/reviews) | [5.0 (4 ratings)](https://appshunter.io/ios/app/diyk9/id6743503490/reviews) |
| Number of ratings | **8** | 4 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Fortnightly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 49 MB | 49 MB |
| Requires iOS | 16.6 | 16.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [STSK9](https://appshunter.io/developer/1710109116) | [DIYK9](https://appshunter.io/developer/1803242363) |

## What reviewers say

### STSK9

[App page](https://appshunter.io/ios/app/stsk9/id6468565276)

Access specialized online dog training courses and all your training videos in one convenient app. Receive updates and easily find your favorite content.

**Highlights:** Online dog training courses, Access all training videos, Push notifications for updates, Password-free video access, Save favorite posts

**Features:** Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Puppy University Program | $299.00 | one-time |


### DIYK9

[App page](https://appshunter.io/ios/app/diyk9/id6743503490)

Access all your training videos in one convenient app. Receive updates and save your favorites for quick retrieval. Enjoy a seamless experience without needing to remember passwords.

**Highlights:** Access all videos in one app, Receive push notifications, Password-free video access, Save favorite posts, Track training progress

**In-app purchases:** none


## Frequently asked questions

### Is STSK9 free?

STSK9 is free to download, with in-app purchases available.

### Is DIYK9 free?

DIYK9 is free to download, with no in-app purchases.

### Which has better reviews, STSK9 or DIYK9?

STSK9 and DIYK9 are both rated 5.0 out of 5 on the App Store, from 8 and 4 ratings respectively.

### Do STSK9 or DIYK9 have ads?

Neither STSK9 nor DIYK9 shows ads.

### Which is updated more often, STSK9 or DIYK9?

STSK9 ships an update every 2 weeks, and DIYK9 fortnightly. Most recently, STSK9 was updated on September 12, 2026 and DIYK9 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.*