Sardine Apps have updated their 3 year old bass app for iPhone and iPad, with Audiobus support!

iJ Bass iTunes Description:

We proudly present iJBass. With fully customizable buttons on the side panel, you can play it easier even than a real bass. Place playable buttons to preset chords, scales, solo phrases even entire song! The fretboard can be moved by dragging it or tilting the device, accommodating players’ seamless performance.

Enjoy!

Features :

• New - Audiobus supported
• Authentic vintage bass look & feel
• Low latency, hi-quality sound samples from an original 1971 J-bass
• Fully customizable playable buttons, 10 user presets
• Movable fretboard, by dragging it or tilting the device
• Easy mute and velocity control
• Floating bar makes open strings accessible at any time
• Vibration or trill by shaking the device
• Supports left-handed mode
• Detailed settings including mute sustain, tilt sensitivity, vibration speed, button behavior, etc.

Buy iJ Bass SE on iTunes: $2.99 (iPhone)

Buy iJ Bass HD on iTunes: $3.99

The video quality on this 3 year old demo is pretty terrible, but the audio quality is excellent.