Six Sides vs SoundEcho
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Six Sides
A minimalist hex-grid puzzle game where you arrange numbered tokens to match their neighbor count. Solve handcrafted levels or enjoy endless procedurally generated challenges with a calm, pressure-free experience.
- Minimalist hex-grid design
- Numbered token logic puzzles
- 42 handcrafted levels
- Endless procedurally generated mode
- Real-time color feedback
- No timers or pressure
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Six Sides is a minimalist hex-grid puzzle game built on one elegant rule: every numbered token must touch exactly that many neighbors. Place, drag, and rearrange pieces on the board until every token turns green. Simple to learn, deeply satisfying to master. Work through 42 handcrafted levels that introduce new constraints step by step, then unlock Endless Mode for unlimited, randomly generated challenges that never repeat. Whether you have two minutes or two hours, Six Sides fits your pace. FEATURES - 42 hand-designed logic puzzles with increasing complexity - Endless Mode: infinite auto-generated levels - Real-time color feedback as you solve (yellow, red, green) - Locked tokens that add extra constraints - Clean, minimal design with smooth animations - No timers, no pressure, no clutter - Accessible for beginners, rewarding for experts HOW TO PLAY Each token shows a number. That number tells you how many adjacent tokens it needs. Too few neighbors and the token turns yellow. Too many and it turns red. When a token has exactly the right count, it turns green. Solve the puzzle by turning every token green. Tap, drag, and rearrange until everything clicks into place. FOR PUZZLE LOVERS If you enjoy Sudoku, nonograms, tangrams, or spatial reasoning games, Six Sides offers the same calm focus with a fresh mechanic. Logic, spatial planning, and pattern recognition come together in a system that is easy to understand but hard to put down.
SoundEcho
A fun and accessible memory game using sound cues. Players match pairs of buttons that produce the same sound to clear the board. Supports multiple sound themes and player counts, with Game Center integration.
- Sound-based memory matching
- VoiceOver accessibility
- Animal and computer sound themes
- Multiple difficulty levels (10, 15, 20 sounds)
- 2-4 player real-time multiplayer
- Game Center integration
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SoundEcho is a memory game with sounds that is easy to play and fully accessible with VoiceOver. SoundEcho is enjoyable for blind, low vision and sighted players alike. The gameplay is simple. Buttons showing a letter, number or smiley are spread across the screen. Tap a button to hear a sound. If two different buttons produce the same sound, they disappear. Find all matching sounds as quickly as possible with as few taps as you can. Choose from 4 sound categories: the classic animal and computer sounds, or the alternative traffic and musical instrument sounds. Each game contains 10, 15 or 20 sound pairs. SoundEcho integrates Game Center so you can compare scores, track achievements and play real-time matches with 2 to 4 players. SoundEcho was nominated for the 2023 Golden Apple Awards by the AppleVis website. Try SoundEcho for free today.
Screenshots
Verdict
The clearest difference is price: SoundEcho at Free against Six Sides's $0.99. SoundEcho also leads on review sentiment (100% vs 88%) and update cadence (every 5 weeks vs every 3 months). Six Sides's advantage is ratings volume (12 vs 3). On rating, ads, in-app purchases 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
SoundEcho is free to download; Six Sides costs $0.99 up front. Six Sides sells 1 one-off in-app purchase and SoundEcho sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.2 for Six Sides against 4.3 for SoundEcho. Both are backed by a comparable volume of ratings — 12 and 3 respectively. Written reviews are what separate them: 88% of Six Sides's written reviews are positive against 100% of SoundEcho's.
Six Sides ships an update every 3 months, SoundEcho every 5 weeks. The most recent releases landed on October 14, 2026 and September 25, 2026 respectively.
| Parameter | Six Sides | SoundEcho |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 4.2 (12 ratings) | 4.3 (3 ratings) — better |
| Positive reviews | 87.5% of reviews | 100.0% of reviews — better |
| Number of ratings | 12 — better | 3 |
| Update frequency | Every 3 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 26.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 11 MB | 7 MB |
| Age rating | 4+ | 12+ |
| Developer | MM&F Software LLC | Kristof Nijs |
Customer experience
Six Sides
SoundEcho
In-app purchases
Six Sides
- Six Sides PRO$0.99
SoundEcho
- Purchasing the app$4.49









