Ripple Effect vs Moon
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Ripple Effect
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.
- Over 500 levels
- 5 board sizes
- 5 difficulty levels
- Automatic wrong number highlighting
- Autosave progress
- Best completion time recording
- Game Center Achievements
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Ripple Effect is a logic puzzle with simple rules. The puzzle consists of a rectangular board divided into "rooms". Each room must be filled with each of the numbers from 1 to the number of cells in the room. If two identical numbers appear in the same row or column, at least that many cells with other numbers must separate them. For example, if two 4s appear in the same row, then they must be separated by at least 4 cells. **** Ripple Effect features **** # Content - 5 different sizes of board - 5 difficulty levels - more than 500 levels # Features - Highlight wrong number automatically - Autosave the process of unfinished levels - Record best completion time for each level # Challenge - Game Center Achievements - Try to complete as many levels as possible
Moon
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.
- Draw a single loop
- Follow room entry rules
- Complete moon/sun cell objectives
- Over 10000 puzzles
- Play all puzzles for free
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Moon-or-Sun is logical puzzle game. Draw a line to make a single loop following the rules. 1. A rectangle, bordered by bold lines, is called a "room". The loop goes through each room only one time. Once the loop leaves a room, it cannot return to enter this room. 2. In each room, the loop goes through all of the moon cells or all of the sun cells. The loop cannot pass through both moon cells and sun cells in one room. 3. After the loop goes through the moons in one room it has to go through all the suns in the next room it enters and visa versa. We prepared more than 10000 puzzles in this app. Of course, you can play the all puzzles without the payment.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Ripple Effect | Moon |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (4 ratings) — better | — |
| Positive reviews | 80.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 4 — better | — |
| Update frequency | Every 5 months | Every 3 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 8.0 — better |
| Further details — not scored | ||
| Size | 12 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | Stanley Lam | Yuki Fujimoto |
Customer experience
Ripple Effect
Moon
In-app purchases
Ripple Effect
- Upgrade to Full Version$0.99
Moon
No in-app purchases









