SoundEcho vs Nono Blocks Formula
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
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.
Nono Blocks Formula
This logic puzzle game challenges players to fill in grid cells based on numerical hints to reveal a hidden pattern. With over 100 levels of increasing difficulty, it sharpens problem-solving skills. Enjoy intuitive tap controls on mobile or mouse support on Mac.
- Over 100 logic puzzles
- Beginner to advanced difficulty
- Intuitive tap controls
- Mouse support for Mac
- VoiceOver accessibility
- Leaderboards for competition
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Nono Blocks Formula is a nonogram logic puzzle game. Use the number clues beside each row and above each column to determine which cells should be dark and which should be crossed out. Each number represents a group of consecutive dark cells. Fill every cell correctly to complete the puzzle. When a row or column matches its clues, the hint numbers turn green. On lower-density levels, the clues may allow more than one possible arrangement. Green means that a row or column fits its clues, but the full grid must still match the puzzle's solution. If all hints are green but the level is not complete, revisit places where more than one arrangement was possible and try a different one. More than 100 levels become progressively more challenging as you advance. Play with simple tap controls on iPhone and iPad, or use a mouse on Mac. Key Features: - Over 100 levels, from beginner to advanced difficulty. - Simple and intuitive controls. - Leaderboards to track your progress and compete with others. - Full VoiceOver support for accessible play. Whether you're new to nonograms or an experienced solver, Nono Blocks Formula offers increasingly challenging logic puzzles as you progress.
Screenshots
Verdict
The clearest difference is rating: Nono Blocks Formula at 5.0 against SoundEcho's 4.3. Nono Blocks Formula also leads on device support (4 vs 2) and iOS requirement (15.0 vs 17.0). SoundEcho's advantage is ads (none vs shown) and monetization model (free vs free with in-app purchases). On price, ratings volume, update cadence and in-app purchases 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. SoundEcho sells 1 one-off in-app purchase and Nono Blocks Formula sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Nono Blocks Formula holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 3 and 6 respectively. Written reviews complicate that: 100% of SoundEcho's written reviews are positive against 90% of Nono Blocks Formula's, so the app with the better star average is not the one people write more warmly about.
SoundEcho ships an update every 5 weeks, Nono Blocks Formula every 3 weeks. The most recent releases landed on August 16, 2026 and September 1, 2026 respectively.
| Parameter | SoundEcho | Nono Blocks Formula |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (3 ratings) | 5.0 (6 ratings) — better |
| Positive reviews | 100.0% of reviews — better | 90.0% of reviews |
| Number of ratings | 3 | 6 — better |
| Update frequency | Every 5 weeks | Every 3 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 7 MB | 9 MB |
| Age rating | 12+ | 4+ |
| Developer | Kristof Nijs | x2line.com LLC |
Customer experience
SoundEcho
Nono Blocks Formula
In-app purchases
SoundEcho
- Purchasing the app$4.49
Nono Blocks Formula
- Check Solution$0.99








