PocketJam: 音楽と作曲の録音DTM

Dev Cat

Contains adsIn-app purchases

About this app

PocketJam is the ultimate high-quality recording and composition support tool for musicians, creators, composers, and vocalists, transforming your smartphone into a full-fledged music production studio (DAW/DTM).

【A composition and recording app that never lets inspiration escape】
From melodies that pop into your head, to unexpected chord progressions, guitar riffs, piano phrases, or even humming or voice memos during your commute—record any musical idea instantly and clearly in high quality with a single tap. No equipment setup or complicated routing is required. Simply open the app and press the Rec button the moment inspiration strikes, and your personal recording studio is transformed.

【Smart Chord Pad and Intuitive Playability】
Even beginners with no music theory knowledge can use it with ease. Equipped with an innovative smart chord pad function, you can automatically play beautiful chord voicings like a professional pianist or keyboardist simply by tapping the screen. With just one finger, you can freely control not only diatonic chords, but also tension chords, sevenths, minor ninths, and other complex and emotional chord progressions. Your songwriting inspiration will flow endlessly.


[Powerful Beatmaking Function and Rhythm Tracks]
Built-in drum kits and high-quality rhythm patterns to support all genres, including hip hop, lo-fi, EDM, rock, and pop. From simple beats to replace a metronome, to swinging grooves and complex fills, you can instantly build the rhythm track that forms the foundation of your music. Using the drum machine, you can create professional-quality tracks even when you're on the go.


[High-Function Multi-Track MTR & Overdubbing]
Layer basslines over drum loops, create accompaniments with smart chords, and multi-track record acoustic guitar strokes or vocals (singing/rap) using the built-in microphone. PocketJam features intuitive and easy-to-use multi-track recorder (MTR) functionality. With volume adjustments for each track, panning (left/right positioning), and spatial effects such as reverb and delay, you can experience professional-level mixing with just your smartphone.

[From daily instrument practice support to session notes]
This app is ideal for recording daily instrument practice (guitar, bass, drums, piano, wind instruments, vocal training, etc.) for band members and session musicians. Listening objectively to your own playing allows you to check your rhythm and pitch, dramatically improving your progress. Furthermore, when combined with the iPhone's high-quality microphone, it delivers top performance as a recorder for band rehearsals and jam sessions in the studio.

【PocketJam's Main Features and Functions】
・Stress-free performance experience thanks to its ultra-low latency audio engine
・Intuitive user interface that allows you to start recording instantly with one tap
・Recording and exporting in high-quality WAV format (uncompressed waveform data)
・Magical smart chord pad UI that lets you produce a professional sound without needing music theory
・High-quality drum kit sound source and software synth usable for any genre
・Loop sequencer function with overdub (multi-track recording) support
・Metronome, quantize function, tempo (BPM) adjustment
・Spatial production with reverb (reverberation) effect
・Easily share your created original music data on social media and with friends

【This music app is recommended for people who:】
・Are beginners at musical instruments but want to create their own original songs (songwriting)
・Use DTM or DAW software (Logic, Cubase, For those who found GarageBand etc. too difficult and gave up:
- Professional composers and Vocaloid producers who want to save songwriting ideas anytime, anywhere using voice memos or recording apps.
- Musicians who want to record band studio practice or live performances in high quality.
- Those who want to easily record acoustic guitar or piano performances and upload them to social media.
- Rappers and hip-hop creators who want to create rap beats and backing tracks for freestyle.

Turn the music in your head into a real song right now. From idea sketches to full-fledged demo production, PocketJam is the perfect partner to strongly support your musical life and creative activities. Download it now and enjoy a new world of music production!

What’s new

Android版を公開しました。録音、コード、メロディ、ビート機能をiOS版と同じ内容で利用できます。