Cytus II

Rayark International Limited
FREE iOS Android
4.1 ★
Rating
Free
Price
5.1.2
Version
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Reviewed on May 11, 2026
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Screenshots

Cytus II app screenshot 1 Cytus II app screenshot 2 Cytus II app screenshot 3 Cytus II app screenshot 4

My Experience with Cytus II

I picked up Cytus II after a buddy swore it was the best rhythm game on mobile. Three days in, I’m impressed by the sheer variety of tracks—electronic, rock, even some classical stuff—but I’m also already frustrated. Tuesday night, I was grinding through a song, and the game stuttered mid-swipe, costing me a perfect combo. That glitch bit me again on Thursday during a multiplayer match. For a paid app, I expect polished performance, not micro-stutters that mess with muscle memory. The story mode is a neat distraction, all futuristic and weird, but I’m here for the beat, not the lore. My iPhone 14 handled the visuals fine, but the battery dropped fast—30% in one session. I get it: this is for players who treat rhythm games like a sport. I’m that person. But the rough patches sting more when you’re paying upfront.

Features Worth Noting

Cytus II offers over 100 songs, and the genre range is legit—I found jazz fusion and heavy synth tracks I actually saved to my playlist. The difficulty levels are no joke: easy for casuals, hard for masochists like me. I spent an hour on a level 10 track, failing until my thumb ached. That’s the appeal. The customizable characters and decks let you tweak the visual style, which is cool for personalizing the experience, though I mostly keep defaults. Multiplayer mode works when the connection holds—I played three matches against a friend in Japan, and it synced well enough, but lag was brutal in one game. The interface is sleek, with notes flowing in a glowing cylinder that feels immersive. Regular updates promise new songs, but I haven’t seen one yet. The achievements system pushed me to replay songs for scores, which I actually liked. It respects your skill but doesn’t hold your hand.

What Needs Work

The biggest issue is performance stability. On my iPhone 14, I got frame drops three times in one session—never during a menu, only during dense note sections. That’s unacceptable for a rhythm game where timing is everything. I contacted support about it, got a generic reply after 18 hours suggesting I “clear cache,” which did nothing. Second, the battery drain is real. I played for 40 minutes, and my phone dropped from 80% to 45%. Third, the offline mode is limited—you need a connection for multiplayer and some story unlocks, which sucks if you’re on a subway. The in-app purchases for extra songs feel nickel-and-dimey when you already paid $6 for the base app. Beginners will find the default difficulty curve steep; there’s no tutorial beyond a basic swipe demo. The matchmaking in multiplayer matched me with a player who had 10x my score, so balance is off.

Pricing

Cytus II costs $5.99 upfront on the App Store, which is fair for the base content—around 100 songs and the story mode. But then songs are locked behind a currency you earn slowly, or you buy them outright in packs for $2–$5 each. I spent $7 extra on a sci-fi pack and got 10 decent tracks. That adds up fast. Compare to something like Beatstar, which is free, or Cytus II feels pricey for what you get unless you’re obsessed. The base game gave me about 15 hours before I hit the paywall hard. If you’re frugal, wait for a sale. I bought in because of the hype, and now I’m second-guessing.

Developer Notes

Rayark’s support response was slow and unhelpful. I sent a bug report Thursday at 7 PM—my frame drops and a sync issue—and got a canned reply Friday at 1 PM asking me to reinstall. No acknowledgment of the problem. Updates seem sporadic; the last one was two months ago, per the App Store. The dev team clearly built a passion project, but they’re not patching fast. I’d expect more from a company selling premium rhythm games. The art direction is top-tier, so someone cares, but the QA feels lacking. If they communicated better—say, a roadmap or known issues page—I’d be less annoyed.

Security & Privacy

The app asks for minimal permissions—no mic, no contacts, just internet access for multiplayer. That’s a plus. I checked the privacy policy: they collect crash data and game progress, but not personal info like location. No creepy ads popping up after I bought it. The sign-in system uses a generic Rayark account, not my Google or Apple ID directly, which feels safer. I didn’t notice any weird battery drain outside gameplay, so no background shenanigans. For a paid game, it’s a solid privacy stance.

Frequently asked questions
How does the multiplayer mode in Cytus II perform, especially when playing against someone in a different region?

Multiplayer can work well when the connection is stable—matches against a friend in Japan synced fine in most games. However, lag can be brutal in some sessions, and matchmaking may pair you with players who have vastly higher scores, so be prepared for uneven competition.

What are the difficulty levels like in Cytus II, and is there a tutorial for beginners?

Difficulty ranges from easy for casuals to very hard (level 10 tracks) for experienced players, with no hand-holding. There is no proper tutorial beyond a basic swipe demo, so the default difficulty curve can feel steep for newcomers.

Why does Cytus II stutter or drop frames during gameplay, and how can I fix it?

Frame drops occur during dense note sections, even on devices like the iPhone 14, and clearing cache (as support suggests) often doesn't help. This is a known performance issue that can ruin perfect combos, and there's no reliable fix yet beyond waiting for an update.

Why does Cytus II drain my battery so fast, and is there a way to reduce it?

The game can drain 30% or more of your battery in a single 30-40 minute session due to its intensive graphics and constant note processing. Lowering screen brightness and closing background apps may help slightly, but heavy battery usage is a common complaint with no official solution.

How does Cytus II compare to other paid rhythm games like Arcaea or Deemo in terms of content and value?

Cytus II offers over 100 songs across diverse genres (electronic, rock, jazz) for a $5.99 upfront cost, but many songs are locked behind slow-earned currency or paid packs ($2–$5 each), which can feel nickel-and-dimey. Unlike Arcaea's free-to-play model with a single paid expansion, Cytus II's base price plus extra purchases may offer less value for players who want all content without additional spending.

✓  Pros
✓ Over 100 diverse songs across multiple genres.
✓ Challenging difficulty levels that demand real skill.
✓ Stunning visual style and smooth interface design.
✓ Multiplayer mode works well with stable internet.
✓ Regular updates add new content and tracks.
✗  Cons
✗ Frequent frame drops ruin precise timing moments.
✗ Support replies are slow and lack real solutions.
✗ In-app purchases escalate cost beyond the base price.
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App information
DeveloperRayark International Limited
Version5.1.2
PriceFree
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