iFretless Bass is a professional virtual instrument that provides bass and guitar players with an expressive fretless playing surface. The layout is like an eight string bass guitar with the notes colored black and white like the keys of a piano. Although it looks different from a guitar neck, bass players will find it surprisingly easy to use.

The app's ability to measure the force of touches on the screen allows it to respond to dynamics and accented notes with a wide range of different tones for each instrument.

1) 13 deeply sampled bass sounds
2) MIDI input and output
3) Audio Unit 3 support
4) Audiobus support
5) Parametric Equalizer
6) MPE multi-channel MIDI support
7) Accurate touch force sensing, even on devices that don't support 3D touch

1) Fretless bass
2) Slap bass
3) Jazz bass
4) Acoustic upright bass
5) Pick bass
6) Muted Pick Bass
7) Hard Fingerstyle Bass
8) Electric upright bass
9) Saw wave analog synth bass
10) Chameleon synth bass
11) Snarling synth bass
12) FM synth bass
13) Wonder synth bass

What’s New

Version 4.4.9

Various fixes and improvements.

Ratings and Reviews

4.8 out of 5
6 Ratings
6 Ratings
JerryRO2 ,

Unusually playable instrument. Sets the gold standard.

I play the Bass in live performances using Bluetooth MIDI (puc+) and my EWI 5000 wirelessly. The expressiveness and sound quality rivals many desktop instruments, and this is a truly fun and capable instrument. The development team is also quick to address issues and customer support is highly responsive.
Love. This. App.

Piano7sound ,


Hello iFretless

I just wanted to say thank you so much for fixing the below problem so quickly. It means a lot and I appreciate it. IFretless and garageband, cubasis are my main iOS daws and I really this app with audio unit ext with iFretless to get songs done. Thanks for the perfect bass app for iOS. Please always support this a lot of people use it. Thanks again.

Old request below

Hello iFretless

This has the best bass sounds in the App Store. I need something fixed however. I noted recently that some of my songs in GarageBand that use iFretless audio units drops out the whole audio of the song while playing. When I delete the iFretless audio unit track the song play fine all the way through. Thank you for the great app but please fix this. I noticed garageband updated recently which might have messed up something. Thanks for ifretless

Developer Response ,

thanks! :)

apesma1 ,

Latest release - No sound

No sound generating from app on iPhone 6s plus ios 11.
Anyone else have this issue?

Developer Response ,

We fixed the issue. Thanks for reporting it.


Ngo Minh Ngoc
158.3 MB
Requires iOS 11.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© 2012 Blue Mangoo


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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