# Moonlight Logic vs ECHO

The clearest difference is in-app purchases: ECHO at none against Moonlight Logic's 1. ECHO also leads on ads (none vs shown). Moonlight Logic's advantage is iOS requirement (13.0 vs 15.0). On price and device support there is nothing between them.

Both are free to download. Moonlight Logic sells 1 one-off in-app purchase. ECHO asks for nothing beyond the download.

## The numbers

| Metric | Moonlight Logic | ECHO |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Daily | — |
| Size | 61 MB | 101 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Stanley Lam](https://appshunter.io/developer/453164363) | [wapon Inc.](https://appshunter.io/developer/563984006) |

## What reviewers say

### Moonlight Logic

[App page](https://appshunter.io/ios/app/moonlight-logic/id6741709513)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Version | $2.99 | one-time |


### ECHO

[App page](https://appshunter.io/ios/app/echo-grids-number-puzzle/id6791798318)

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

**In-app purchases:** none


## Frequently asked questions

### Is Moonlight Logic free?

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

### Is ECHO free?

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

### Do Moonlight Logic or ECHO have ads?

Moonlight Logic shows ads; ECHO does not.

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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.*