# Echo Dogs Training vs ReefKG

The clearest difference is in-app purchases: Echo Dogs Training at none against ReefKG's 2. ReefKG's advantage is update cadence (fortnightly vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. ReefKG sells 2 in-app purchases, starting at $12.99 per month. Echo Dogs Training asks for nothing beyond the download.

Echo Dogs Training ships an update every 2 months, ReefKG fortnightly. The most recent releases landed on October 16, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Echo Dogs Training | ReefKG |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Size | 20 MB | 58 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Echo Dogs Training](https://appshunter.io/developer/1778183909) | [Reefkg corporation](https://appshunter.io/developer/1881519744) |

## What reviewers say

### Echo Dogs Training

[App page](https://appshunter.io/ios/app/echo-dogs-training/id6737822859)

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

**In-app purchases:** none


### ReefKG

[App page](https://appshunter.io/ios/app/reefkg/id6759900642)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly Plan | $12.99 | per month |
| Premium Yearly Plan | $95.90 | per year |


## Frequently asked questions

### Is Echo Dogs Training free?

Echo Dogs Training is free to download, with no in-app purchases.

### Is ReefKG free?

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

### Do Echo Dogs Training or ReefKG have ads?

Neither Echo Dogs Training nor ReefKG shows ads.

### Which is updated more often, Echo Dogs Training or ReefKG?

Echo Dogs Training ships an update every 2 months, and ReefKG fortnightly. Most recently, Echo Dogs Training was updated on October 16, 2026 and ReefKG on October 10, 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.*