BIAS FX Mobile turns your iOS device into an intuitive, portable and powerful guitar and bass effects processor. Take a massive collection of realistic sounding amps and effects to your next jam session, or to the stage. Plug-in and play anywhere you go!

Complete iOS Guitar Amps and Effects
- Hundreds of stunningly authentic amps and effects by Positive Grid
- LiveView turns your mobile device into a performance-ready processor
- Seamlessly open BIAS AMP models inside BIAS FX with one tap
- Download and share thousands of presets from ToneCloud™

BIAS FX Mobile turns your iOS device into an incredible sounding guitar amps and effects processor built on the backbone of our award-winning pro-level software. With an easy-to-use drag-and-drop interface, BIAS FX Mobile comes packed with a library of ultra-realistic boutique amps and a studio full of pro-level effects and the hottest guitar pedals.

The BIAS collection of advanced guitar hardware and software is built on the most robust amps-and-effects engine in the industry. BIAS FX Mobile works seamlessly with BIAS AMP 2 and BIAS Pedal apps to allow limitless customization of guitar amps and pedals.

With our penchant for perfection, BIAS FX is built on the backbone of our amazing, ultra-real BIAS AMP 2 tone engine. It’s a radically different approach to tone creation. We joined forces with the world’s top artists, engineers and recording studios to ensure our amplifier circuits are mind-blowingly authentic and best in class. The result? Plug-in for an extraordinary playing experience with realistic touch response and ultra-responsive dynamics.

The BIAS FX universal app includes incredibly versatile, high-quality effects from vintage pedal simulations to newly added high-end rack effects. Mix, match and tweak to enter new sonic territory and create fantastic sounds never heard before. All effects are designed to work with BIAS FX’s easy-to-use, photo-realistic, drag and drop interface to dial in tone just like on analog studio gear.

The BIAS FX mobile app also allows users to connect to our ToneCloud, where players can find thousands of amps and effects configurations created by artists, producers, and engineers from all over the world. You will never run out of inspiration, as the ToneCloud library grows daily. Settings can easily be downloaded and shared.

Key Features:
- Extremely intuitive operation
- Unrivaled, component-level simulation, analog-like sound quality
- Over 20 classic BIAS amps, import any amp models from BIAS AMP 2
- 81 high-quality effect pedals with brand new sound-processing algorithms
- 5 ultra-professional rack processors that sound like high-end analog gear
- 74 factory presets. Finding your tone is a no-brainer.
- Full integration with BIAS AMP 2 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
- LiveView 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
- Supports IAA (Inter-App Audio) to expand your sound creativities.

Supported Audio Interface: iRig (all series), Apogee Jam/Jam Plus, Focusrite iTrack Solo, Shure MVi, Korg plugKEY, iConnect AUDIO and all MFi or Class Compliant audio interfaces with Lightning to USB adapter.

What’s New

Version 1.9.11

Hi there,

This update is for fixing transfer issue with BIAS FX 2 Mobile.

Rock on,
The Positive Grid Team

Ratings and Reviews

4.7 out of 5
1.5K Ratings

1.5K Ratings

Mayormaynothavebeensmokin ,

Good god I love it

I can’t believe I still had my old 1st gen iRig. I got the ultimate license for $31 off of the website, there was a sale haha. It’s actually still going right now!
I’m a metal head.. I’m a tone chaser.. I am impressed.. also I don’t know the quality of the 1st gen iRig would work, but I tried it this morning and I haven’t stopped, and I got a pair of semi open back headphones.. I love Djent.. deathcore.. hardcore.. so I go for some specific tones. The fact that I found anything heavy enough to mimic Meshuggah or even THALL tones without any mud.. again very impressed 🙏🙏.

Update Aug 23, 2020

Been using this on my iPad with a MeloAudio floorboard/MIDI controller, and EXP-100 expression pedal of same brand, and it works amazingly. It’s of that I went searching how to get that working and the truth was even those in pros studios didn’t know how to control it. There is full a functioning midi brain in there. All I did was google how to understand midi controls. BAM. Been using the expression pedal for the WAH and the Whammy knock off pitch shifter. Love it all! On top of that I have multiple rigs on different channels. I’m still making new sound channels I have C and D left on page 2 right now.. so that’s 6 channels/setups/rigs/ with multiple amps in each one. I still haven’t upgraded to Bias FX mobile 2. No need to.

Tilden Thorne ,

BiasFX, Bias Amp, and Bias Pedal, just do it!

I am really enjoying this troika of tonal fun! It takes a little work to tweak each piece to fit your tastes but I have found the end result well worth a little effort. The X Drummer tie in is icing on the cake (great practice setup). I enjoy producing via a 12” iPad Pro more then a laptop these days, and this makes for the best of the modeling apps I have used. Add Amp and Pedal and it is off to the amusement park!

There is a surprising amount of touch sensitivity and breakup in the new version. You can easily dial in a gritty overdriven tone that cleans up as roll back the volume a lighten your attack. I hope the developers keep pushing the limits of this app, it is my go to for tone when recording via iOS.

NestorLeiva503 ,

we need an improvement for the live controls

I think the preset and effect controls were designed more for recordings than for live playing, I'm always playing the guitar live using a MIDI controller pedal and an audio interface and I feel it sounds great. but when I’m changing presets a cut in the sound occurs and the reverb and the delays stop working, that's frustrating. it would be excellent if they added a function similar to the snapshots in line6 Hilex to change predetermined effects in a single preset. in this way we avoid the sound cuts and the ambient effects can continue working, it is only a suggestion. I hope it makes sense and thanks.

In-App Purchases

BIAS FX - Ultimate License
Unlock all with 20 amps and 81 effect pedals
BIAS FX - Essential License
Essential pack with 12 amps and 30 pedals
BIAS FX - Starter License
Starter pack with 5 amps and 15 effect pedals


Positive Grid Inc
714.6 MB

Requires iOS 10.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, Japanese, Simplified Chinese, Traditional Chinese

Age Rating
In-App Purchases
  1. Analog Effects Pack $9.99
  2. Effect Powerhouse Pack $9.99
  3. BIAS FX - Ultimate License $64.99


  • Family Sharing

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

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