BIAS FX: Guitar Amp & effects

By Positive Grid Inc

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BIAS FX turns your iPad into a professional world-class, guitar amp-and-effects processor. It gives you an easy to use drag-and-drop interface that includes everything that a guitar player needs for massive tone, with a collection of insanely great-sounding guitar pedalboards, dual amps setup, ultra-high definition stereo rack effects, and dual signal chain.

Develop your custom pedalboard from scratch or access ToneCloud where you can find hundreds of pedalboard configurations for professional artists, producers, and engineers from all over the world

BIAS FX is fully integrated with BIAS AMP so you can easily import BIAS your favorite vintage, boutique or high gain amps to have em available into your pedalboard for studio or live performance.

Key features:

- Extremely intuitive operation
- Unrivalled, component-level simulation, analog-like sound quality
- 12 classic BIAS amps, import any amp models from BIAS AMP
- 25 high-quality effect pedals with brand new sound-processing algorithms
- 5 ultra-professional rack processors that sound like high-end analog gear
- Full integration with BIAS AMP gives you unprecedented control over designing your own fully customized amps
- Dual signal path and dual amp processing
- Brand new splitter switches between and combines dual signal paths, adjusting the level and frequency range for each path to give you more tone-shaping possibilities
- Live View mode lets you recall any preset with a single tap and toggle on/off any single effect or category of effects
- Pedalboard View shows all the effects and amps in the currently loaded preset at once
- Global Settings optimizes BIAS FX’s output to sound the best in any environment—including sending to a mixer, amp head or combo or stack power amp—by letting you EQ and selectively deactivate the app’s preamp, tone stack, power amp and cab separately for each destination.
- Full MIDI compatible


What's new in Version 1.5.12

Hi there,

In this update, we integrated the latest preset version with desktop BIAS FX, which allows you to play your preset seamlessly everywhere.

Rock on,
Team Positive Grid



iPad Screenshot
iPad Screenshot
iPad Screenshot
iPad Screenshot
iPad Screenshot

Customer Reviews

Outstanding Customer support

I experienced a real difficult issue with an in app purchase for Bias FX. Went around in circles with support and Apple Support but have to say that after a few days Positive Grid was able to get me a working solution. I know others mention poor support but I wanted to share while my issues were indeed frustrating the app developer did care and did get me a fix.

The App itself is fantastic. I also own Jam Up and Amplitude and each has its good and bad. I am more familiar with the Positive Grid stuff and like that we can share our creations.

Now that my technical issues have been fixed, TIME TO JAM !!!

One of the Best

I have had enough. 22 "updates" is 24 months and every time one thing is "fixed" at least one more is broken. I get an argument from support about what is and isn't stereo. A month later the stereo problem is fixed but the app crashes and won't restart without a reinstall. They are getting away with this and they shouldn't. Say what you will about Amplitube, Tone Stack, et al, at least they don't insult you with unfinished betas that you pay full price for. I'm done. I wish I could recover all the money I spent on PositiveGrid products. You want Amp modeling hardware? Get a Kemper product...well, worth the few extra dollars. Send a message to Bias and Positive Grid; clean up your act!


The app does not seem to work well with multi channel usb audio interfaces. Can’t select input or outputs. Furthermore I can’t see or hear the bias amp integrate with it. This is great as a casual level app but not a serious pro app. This should be easy but I can’t see or hear any difference with the bias amp purchase. Also was not working right with my usb audio interface. All I get is mono out even when hard panned and meters show sound only on 1 channel.

BIAS FX: Guitar Amp & effects
Download for Free 3 Archived versions available

This app is designed for iPad only
  • iTunes Price: $19.99
  • Category: Music
  • Updated: Dec 08, 2017
  • Version: 1.5.12
  • Size: 604 MB
  • Language: English, Japanese
  • Seller: Positive Grid Inc
Rated 4+

Requirements: Requires iOS 9.0 or later. Compatible with iPad.

Customer Ratings

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