O2Jam is a nostalgic trip for anyone who played the original PC rhythm games in the early 2000s. This mobile version successfully translates that high-speed, multi-lane note-tapping to the touch screen. The song library is massive, covering everything from classical remixes to high-bpm K-Pop and electronic tracks. The 'Long Note' mechanics are particularly well-tuned, requiring a steady hand while other notes fly by.
While the UI feels a bit dated compared to modern rhythm games like Arcaea or Cytus, the core gameplay is rock solid. Itβs a pure skill test; there are no 'gacha' characters that boost your scoreβit's just you and the music. For rhythm game purists who want a traditional 4-key or 7-key experience, O2Jam remains a top-tier choice.
Available on: iPhone, iPad, iPod
Version 1.87Mon Feb 16 2026
β Fixes
Resolved an issue where the game would crash in certain languages.
- Perfect Single Play
We have focused on heightening the most important qualities of music games, by taking into consideration the feedback from game enthusiasts,
from sync to note angles, note size, note and background color, as well as types of categorized judgment criteria.
- Compete Against the Globally Renowned
There is not only a graph which enables you to view the playerβs skills in a glance, a social feature which gives you a chance to boast to your friends.
- New Skin System Full of Individuality
A strong customizing system is supported where separate skin patches can be fused or a completed set is available.
Enjoy 'O2Jam - Music & Game' on your own personalized play screen.
Don't miss out the fun changing appearances of each skin type as you level up 'Fever' stages.
- Offline Mode Where You Can Play Anywhere, Anytime
A feature where you can play freely disregarding the network connection has been added.
The best rhythm game available where you can play anywhere, anytime, such as the bus, subway, or even on the airplane.
- O2Jam Service 22nd Anniversary
O2Jam, which has been enjoyed by 50 million people around the world since the PC online era and has a variety of music sources of over 1,000 songs, is already celebrating its 22nd anniversary since its launch.
β» β» O2Jam - Music & Game Special Features β» β»
- Original sound best suited for rhythm games
- Prime songs in high quality 320kbps
- Level selection of Easy, Normal, Hard, 3Key, 4Key, 5Key play per song
- Short notes and long notes differentiated by light taps and prolonged touches respectively
- Touch & Drag features supported
- Judgment results: Perfect, Good, Miss
- Combo and 4 level fever system
- Result Rank Levels STAR, SSS, SS, S, A, B, C, D, E
- Multiplay ranking and song ranking available
- Customize the skin according to your taste
- Song sample available depending on user's selection
- Available in multiple languages
β» O2Jam Music β»
- Over Basic 100 songs
- Additional updated over 500 songs (Subscription needed)
- Prime Songs (Subscription needed)
β» O2Jam Subscription β»
The O2Jam subscription service offers unlimited access to over 100 basic songs, over 500 additional updated songs, Prime songs, and all future songs and [My Music]'s Bag1 ~ Bag8. for $0.99 per month.
- Price and period: $0.99 / month
Subscription Terms: Payment is charged to your iTunes Account.
Subscription is automatically renews unless turned off in Account Setting at least 24h before current period ends.
You can cancel and manage your subscription in your iTunes Account Setting.
@ Terms of O2Jam Service : https://cs.o2jam.com/policies/policy_o2jam.php?lang=en&type=terms
@ Privacy for O2Jam : https://cs.o2jam.com/policies/policy_o2jam.php?lang=en&type=privacy
@ O2Jam Ranking Site : https://rank.o2jam.com
@ O2Jam Official Facebook : https://www.facebook.com/O2JAM
@ O2Jam Official Twitter : https://twitter.com/o2jam
Requires iOSΒ 13.0 or later. Compatible with iPhone, iPad, and iPodΒ touch.The heart of any rhythm game is the music itself.
O2Jam is a legendary rhythm game series loved by over 200 million players worldwide for the past 22 years.
It features 600+ high-quality original tracks created exclusively for rhythm gameplay, with new songs added every month β the only official O2Jam rhythm action game that continues this legacy.
If you're looking for a high-quality, ad-free rhythm game,
or enjoy titles like Piano Tiles, Cytus, osu!,
now is the perfect time to download O2Jam.
600+ Original Tracks from 112 Artists
- Enjoy masterpieces from world-renowned rhythm game composers such as Brandy, Warak, S.I.D Sound, BeautifulDay, Memme, SHK, and more β all completely free.
- Includes legendary O2Jam classics like V3, The Festival of Ghost, A Christmas Memory, and many others.
New Songs & Patterns Added Monthly
- Be the first to play new tracks from rising rhythm-game artists.
- Multiple key modes and difficulty levels (3~5 keys) for beginners to experts.
Global Ranking System β Total Mastery
- Compete with players around the world.
- Challenge global and country-based rankings to reach the top tier.
- Share your score with friends and show your skills.
22 Years of O2Jam History
- A rhythm game loved by over 200 million fans since the original PC online era.
- Featuring a massive music catalog of over 1,000 original tracks throughout its legacy.
- The rhythm continues β and the history of O2Jam keeps growing with you.
Recommended For Players Who
- Want a high-quality, ad-free rhythm gaming experience.
- Want to relive legendary classic rhythm-game tracks.
- Love rhythm games like Piano Tiles, Cytus, osu!, and more.
Customer Support
If you have any questions or suggestions while playing,
feel free to contact us at help@o2jam.com
Your feedback helps make O2Jam even better.
Subscription Information
- Subscriptions are available through in-app purchase and renew automatically every month from the initial billing date.
- Renewal occurs within 24 hours before the next billing date unless canceled.
- Subscription cancellation follows the policies of your deviceβs app store.
- Terms of Use: https://cs.o2jam.com/policies/policy_o2jam.php?lang=kr&type=terms
- Privacy Policy: https://cs.o2jam.com/policies/policy_o2jam.php?lang=kr&type=privacy
This game has been rated 3+ by the Indonesian Game Rating Authority (IGRS).
Β© O2Jam Company Ltd., All Rights Reserved.














O2Jam is the legendary rhythm game now optimized for mobile. Featuring a vast library of original tracks and classical masterpieces, players must tap and slide in sync with the rhythm. Choose between various key modes to suit your skill level and compete with players globally for the highest score. Itβs a perfect test of reflex and musicality.
Multiple key modes (2, 4, 5-key)
Vast library of original music
Real-time global rankings
Customizable skins and note styles
Offline play available for downloaded songs
If notes feel too cluttered, increase the 'Note Speed' in settings. While it looks faster, it spreads the notes out, making it easier to read complex patterns.
EMI Music Philippines, one of the leading music publishers, has partnered to localize Original Pilipino Music, or OPM, for O2Jam.
Philstar.com - Sun Oct 29 2006
If you've ever played a rhythm/music title on iOS you should be familiar with the gameplay in O2Jam U. Simply put, select one of the 16...
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The game developer's Twitter page that the O2JAM Rebirth S, based on the classic rhythm game, is coming to the Nintendo Switch soon.
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FileHippo - Wed Sep 29 2021
Use the practice feature to slow down difficult sections of a song. Mastering a 7-key song at 0.5x speed is the best way to build muscle memory.
Yes, every song has Easy, Normal, and Hard modes, plus the option to change the number of keys.