BIAS AMP 2 - for iPad 4+

Ultimate Virtual Amp Designer

Positive Grid Inc

    • 4.5 • 711 Ratings
    • Free
    • Offers In-App Purchases

iPad Screenshots


BIAS AMP 2 Mobile is a professional virtual amp designer that offers replications of 36 of the best vintage, modern and boutique amps in rock. The app gives you the power to create new sounds by designing your own dream amplifier, letting you swap out tubes, preamps, power amps, transformers, tone stacks, cab, and microphones, all via a powerful and intuitive interface designed for your iPad. Whether you’re a classic rocker, metalhead, jazz player, bluesman or singer-songwriter - and whether you understand how amplifier electronics work or not - you’ll be dialing in killer and exclusive tones in a heartbeat.

BIAS AMP 2 Mobile adds a host of new features, including a powerful new user interface, new preamp and power amp modules, tubes, tone stacks, Blues and Bass amp packs, new Dynamic Tone Control, new speaker cabinet module with multi-mic capability and open/closed back cabinet emulation and much more. In addition to all of these amazing new features, we’ve also partnered with legendary Celestion to create brand new custom multi-mic speaker cabs using their famed impulse responses! (Additional preamp, power amp and cab models are available via in-app purchase)

BIAS AMP 2 Mobile seamlessly integrates with Positive Grid’s ToneCloud®, which is far more than a simple storage tank for your own custom tones - it’s an active community where thousands of guitarists upload, share and discuss tones. The ToneCloud® gives you access to thousands of custom amps created by artists, recording studios and guitarists like you, so you’ll never lack for sonic inspiration.

To take your tones to the next level, there are 9 full-featured reverbs in BIAS AMP 2 Mobile. These aren’t just simple two-knob reverbs either - they range from lush halls and chambers to intimate rooms, and each reverb has control of decay time, mix level, high and low cut filters, damping and dwell.

BIAS AMP 2 Mobile integrates seamlessly with Positive Grid's BIAS FX and JamUp guitar multi-effects apps for iPad, expanding BIAS AMP 2 Mobile into a powerful and completely unified professional guitar system for live use, recording and jamming. Both JamUp and JamUp Pro include effects processors, Jam player, 8-track recorder and phrase sampler, tuner and metronome, effectively turning BIAS AMP 2 Mobile into a recording studio and top-of-the-line practice utility.

BIAS AMP 2 Mobile also works with GarageBand and other audio apps using iOS’s Inter-App Audio and Audiobus. Whether you’re recording, writing songs or honing your chops—at home or on the road—BIAS products place unequaled tone at your fingertips.


• Complete, accurate and versatile component-level amp modeling
• 36 amp models included with the introductory release, with thousands more available via the ToneCloud®
• Factory categories that allow you to organize amps by music genre and sonic impact (clean, blues, glassy, crunch, metal, acoustic, and bass)
• Fully customizable preamps, tone stacks, power amps, transformers, cabinets, and mic selection and placement - mix and match!
• Customize the look and feel of your amp panel by changing the name, tolex, front panel and knobs
• Ability to work the way guitarists think: Tweak gain and overdrive, swap out tubes and transformers, change the cabinet and mic position and shape the tone with different tone stacks and two 8-band equalizers
• Noise gate
• 9 lush and full-featured reverbs
• Create a virtually unlimited number of custom amps
• Preset to recall each of your 8 favorite settings
• Seamless integration with BIAS FX and JamUp; open and save your amp models inside BIAS FX and JamUp with one tap (available via in-app purchase)
• Works with GarageBand and other audio apps via Inter-App Audio and Audiobus

Also check out BIAS AMP 2 for desktop machines (AAX/VST/AU) at:

For more information, please visit:
Twitter: @PositiveGrid

What’s New

Version 2.1.15

- Fixed issue with inability to open using IAA.
- Minor bugs fixed.

Ratings and Reviews

4.5 out of 5
711 Ratings

711 Ratings

derrickguitar ,

Insanely Good

Update 2023: Unfortunately this app no longer works on my iPad since operating to iOS 16. Customer support said they were opening an investigation, but I have not heard back since. The app still opens and functions properly, but it won’t integrate with GarageBand or Auria, so I can’t use it for recording, just practicing along with songs.

Way way better than Line 6 for line in recording, though I haven’t tried out any of the Helix stuff. Right out of the box, the Marshall, Fender, and Orange amp sims sound really good, and I’ve owned a Fender Deluxe Reverb and an Orange Rockerverb and done recordings in professional studios with them. The mic placement setting works great too, which is pretty mind blowing since it tends not to work on other gear I’ve owned, and actually sounds like what would happen in real life. If you buy the full version, you can move the mic further away which allows you to really dial in the tone you want. I can’t say enough good things about this app; out of 5 stars, it deserves 10.

rcguitarguy ,

Amp sim sound good, but UI not scaled for 12.9” iPad Pro

This is my favorite amp sim especially when combined with Bias FX. That said, I am disappointed with the UI on the 12.9” iPad Pro (1st gen). It is scaled for a regular iPad and the screen is tiny. This is one of things holding me back from paying for the full version. It would also be nice to have a simple IR loader for the iPad version integrated into the app. Hoping the next update fixes the screen issue.

Update: With the screen issue fixed Bias Amp 2 is probably the best amp sim app out right now. Despite having to pay extra to unlock all the features, the app is a more versatile tool than ever before and conforms with standard mic placement practices (ex. 121 and 57 combo). I use this program with an older Apogee JAM and have not had any issues with sound or crackling. What I would like to see in the future is more 3rd party IR integration into the app. Overall, Bias Amp 2 a very useful tool for guitarists and a hell of a lot of fun to rock on.

Developer Response ,

Hi rcguitarguy, We are really sorry for the problem you are encountering. Right now we are focusing on the fix of the screensize and we hope to release a fixed update very soon!

NeedEQforVideos ,

One Huge App!

I Love the Control I get with Bias Amp 2, but there is something Major you should consider...When I go from Bias FX to Bias Amp 2 I just have the stripped down amp to work on with no effects except a Mono Reverb. Then when I link back over to Bias FX again, the amp sounds Totally Different than when I just worked on it in the Bias Amp 2 App due to what effects I use with it. It would be Much Better if you made it all One Big App so I can work on sounds as they will sound when finished in Bias FX. The Cabinets are over in Bias Amp 2 and can alter the sound Drastically. All the Amp adjustments would be much easier to work on if they were a part of the Amp adjustments in Bias FX instead of switching back and forth and having to Guess what it will sound like in BiasFX. Bias Pedal is easier to go back and forth, so that isn’t a big deal. If I could adjust all the Amp Settings over in Bias FX with the Effects I want to add, I could get a better result than guessing what it will sound like. You could just have in-app purchases instead of getting both apps.

App Privacy

The developer, Positive Grid Inc, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

More By This Developer

Spark: Chords, Backing Tracks
BIAS FX 2 - #1 Guitar Tone App
BIAS FX - Guitar Amp & Effects
BIAS AMP 2 - for iPhone
JamUp Pro

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