Lethe vs RAVON
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Lethe
Experience a theatrical music game with stunning artistic scenes and original music. Solve puzzles and uncover a fantasy story by interacting with musical scrolls and gathering elven energy. Immerse yourself in a unique world of magic, sound, and emotion.
- Theatrical music gameplay
- Artistic sand painting scrolls
- Original high-quality music
- Puzzle-solving mechanics
- Immersive fantasy story
- Unity 3D integrated system
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"This game has the best artistic quality and effects I've ever seen."- Japanese music master Onoken. "A brand new game experience. It will change music games forever!"- Taiwan's top musician Vanros Kloud. Lethe is a theatrical music game designed with beautifully artistic scenes, sand painting scrolls, and high quality music. Players can discover the lost memories of the "Lethe" continent by gathering elven energy and solving puzzles. The pictorial operations help you release the mysteries and riddles that bind and separate Taya and Omari. ---Game Features--- Brand new gameplay where you open a musical scroll and dive into a unique world of magic and sound. As you journey through this world, more and more music will be unlocked and an immersive world of adventure will open up to be discovered. Play to the tunes of original musicians from around the world, such as Onoken, Vanros Kloud, Sakuzyo, and celebrated newcomer Kage. Rise above traditional visual experiences through a perfectly developed Unity 3D integrated game system. Grants you a real sense of music performance. Every scene of this game is hand painted and fuelled by the mystical power of music and emotion. You will become immersed in an epic fantasy drama set in the style of a timeless fairy tale. ---Awards--- Indieplay Best Music Sound Effects Jinyuan Best Music Sound Effects Jinyuan Best Art Design CGDA Best Mobile Game Design & Innovation Award TIGA Best Game Nominations Very Big Indie Pitch - The Fourth Best Game (The only Asian product nominated) IMGA Highest Award Nomination IMGA Most Anticipated Game Award IMGA Best Audio Award Taipei Game Show Best Art Award
RAVON
Immerse yourself in a cosmic rhythm game experience with futuristic beats and interactive visuals. Challenge your skills across a wide range of difficulties and unlock new in-game content through missions. Enjoy a collection of soundtracks from talented artists worldwide.
- High-quality audio with interactive visuals
- Multiple difficulty levels
- Mission-based content unlocking
- Global soundtrack collection
- Futuristic space theme
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"Let's immerse in the melody of outer space" Have you imagined performing music in the vast universe? Have you been thinking of joining a DJ party and traveling around different stars? Join the space travel with RAVON! We will deliver a refreshing experience of rhythm game through the cosmic world and sounds of RAVON. YOU are the chosen one to join RAVON's crew. "Feel the futuristic beats with your fingers" [Game Features] • Hi-quality audio experience with interactive visual effects • Wide range of difficulties for you to practice and challenge your skills, even RAVON is your first rhythm game ever played • Mission for players to unlock items to unlock in-game content. • Collections of soundtracks made by a variety of talented artists from all around the world, including Hong Kong, Japan, Korea, America and more!!! [Award] 2019 Taipei Game Show Indie Game Award “Best Audio” Nominee [Language] English [Follow Us] Facebook:https://www.facebook.com/Ravon.synthnova/ Twitter:https://twitter.com/synthnova/ [Contact Us] Email: cs.synthnova@gmail.com
Screenshots
Verdict
The clearest difference is price: RAVON at Free against Lethe's $0.99. RAVON also leads on rating (4.8 vs 3.8) and ratings volume (84 vs 13). Lethe's advantage is chart position (#58 vs unranked) and update cadence (every 4 weeks vs every 2 months). On review sentiment, ads, in-app purchases and monetization model 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
RAVON is free to download; Lethe costs $0.99 up front. Lethe sells 1 one-off in-app purchase and RAVON sells 17 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
RAVON holds the better App Store score, 4.8 against 3.8. That said, the two scores are not equally well evidenced: RAVON has 84 ratings behind it against 13, so its average is the more settled of the two. Written reviews point the same way: 65% of Lethe's written reviews are positive against 67% of RAVON's.
Lethe ships an update every 4 weeks, RAVON every 2 months. Both last shipped on October 16, 2026.
| Parameter | Lethe | RAVON |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 3.8 (13 ratings) | 4.8 (84 ratings) — better |
| Positive reviews | 64.9% of reviews | 67.4% of reviews — better |
| Number of ratings | 13 | 84 — better |
| Update frequency | Every 4 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | #58 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 7.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 1.3 GB | 733 MB |
| Age rating | 4+ | 4+ |
| Developer | Changyou.com HK Limited | Jonathan Lam |
Customer experience
Lethe
RAVON
In-app purchases
Lethe
- Chapter "Wither"$2.99
RAVON
- 1 Q. Chip$0.99
- Dynamix UV Pack 2$3.99
- K@keru Records Pack 1$3.99
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- Lyrica Pack$3.99
- Dynamix Pack 1$3.99
- Dynamix Pack 2$3.99
- K@keru Records Pack 2$3.99
- 5 Q. Chips$4.99
- VI Virgo$4.99
- III Gemini$4.99
- I Aries$4.99
- II Taurus$4.99
- IV Cancer$4.99
- V Leo$4.99
- Cytus II Pack$4.99
- 10+1 Q. Chips$9.99
- Zodiac I$11.99







