klang² vs Ray Relay
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
klang²
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20 sound squares turn your ears upside down. Which bird sings? Which composer sounds? Can you put proverbs together and recognize foreign languages? Place your smartphone with the klang² app open in the middle of the table, place a sound square on the reader and listen carefully: Off you go with your acoustic game collection! ATTENTION: This app only works together with 20 sound squares, which are available via klang2.com.
Ray Relay
A premium puzzle game where players route light beams through mirrored grids. Solve logic puzzles by rotating elements to align colorful paths, focusing on reflection and timing-free challenges.
- Light-path puzzles
- Mirrored grids
- Colorful beam paths
- Timing-free logic
- Hand-curated levels
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Ray Relay is a premium light-path puzzle game about routing beams through mirrored grids. Rotate your thinking around each board, line up the paths, and solve compact puzzles built around color, reflection, and timing-free logic. Features: - Light-path puzzles - Colorful beam paths - Hand-curated levels
Screenshots
Verdict
The clearest difference is iOS requirement: klang² at 15.6 against Ray Relay's 26.0. On price, update cadence, ads 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. klang² sells 10 one-off in-app purchases and Ray Relay sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
klang² ships an update every 2 months, Ray Relay every 4 weeks. Both last shipped on September 14, 2026.
| Parameter | klang² | Ray Relay |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Number of ratings | — | 2 — better |
| Update frequency | Every 2 months | Every 4 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 26.0 |
| Further details — not scored | ||
| Size | 89 MB | 95 MB |
| Age rating | 4+ | 4+ |
| Developer | Oberlin & Rennertz GmbH | Bogdan Balan |
In-app purchases
klang²
- Klang2 Pro Option 0Free
- Klang2 Pro Option 1$0.99
- Bundesländer und Hauptstädte$0.99
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- Klang2 Pro Option 2$1.99
- Klang2 Pro Option 3$3.99
- Volkslieder Premium$3.99
- Tierisch Menschlich$3.99
- Klang2 Pro Option 4$7.99
- Klang2 Pro Option 5$11.99
- Klang2 Pro Option 6$16.99
Ray Relay
- Focal Point Unlock$1.99
- Double Split Unlock$1.99
- Black Glass Unlock$1.99
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- Narrow Aperture Unlock$1.99
- Signal Bloom Unlock$1.99
- Blue Shift Unlock$1.99
- Prism Junction Unlock$1.99
- Silicon Mind Unlock$1.99
- Event Horizon Unlock$1.99
- Critical Angle Unlock$1.99
Questions
Is klang² free?
Is Ray Relay free?
Do klang² or Ray Relay have ads?
Which is updated more often, klang² or Ray Relay?
Other comparisons
