# Ripple Effect vs Moon

The clearest difference is in-app purchases: Moon at none against Ripple Effect's 1. Moon also leads on ads (none vs shown) and update cadence (every 3 weeks vs every 5 months). On price and device support there is nothing between them.

Both are free to download. Ripple Effect sells 1 one-off in-app purchase. Moon asks for nothing beyond the download.

Ripple Effect ships an update every 5 months, Moon every 3 weeks. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | Ripple Effect | Moon |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/ripple-effect-logic-puzzle/id627813217/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 80.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 12 MB | 14 MB |
| Requires iOS | 15.0 | **8.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Stanley Lam](https://appshunter.io/developer/453164363) | [Yuki Fujimoto](https://appshunter.io/developer/467085185) |

## What reviewers say

### Ripple Effect

[App page](https://appshunter.io/ios/app/ripple-effect-logic-puzzle/id627813217)

A logic puzzle game where you fill rooms with numbers according to specific row and column separation rules. It offers over 500 levels across various sizes and difficulties, with features like automatic error highlighting and progress saving.

**Highlights:** Over 500 levels, 5 board sizes, 5 difficulty levels, Automatic wrong number highlighting, Autosave progress, Best completion time recording, Game Center Achievements

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade to Full Version | $0.99 | one-time |


### Moon

[App page](https://appshunter.io/ios/app/moon-or-sun/id1175901385)

This is a logic puzzle game where players draw a single loop following specific rules within a grid of rooms. The loop must visit each room once, passing through all moon cells or all sun cells within a room, and alternating between moon and sun rooms.

**Highlights:** Draw a single loop, Follow room entry rules, Complete moon/sun cell objectives, Over 10000 puzzles, Play all puzzles for free

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Ripple Effect free?

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

### Is Moon free?

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

### Do Ripple Effect or Moon have ads?

Ripple Effect shows ads; Moon does not.

### Which is updated more often, Ripple Effect or Moon?

Ripple Effect ships an update every 5 months, and Moon every 3 weeks. Most recently, Ripple Effect was updated on November 1, 2026 and Moon on November 2, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*