# BIAS AMP 2 - for iPad — Ultimate Virtual Amp Designer

> Professional virtual guitar amplifier designer and tone creation tool. (iPhone/iPad app by Positive Grid Inc.)

- Source: https://appshunter.io/ios/app/bias-amp-2-for-ipad/id711314889 (this page in markdown: same URL + `.md`)
- Developer: [Positive Grid Inc](https://appshunter.io/developer/751979910)
- Category: Music, Music, Entertainment
- Price: Free with in-app purchases
- Rating: 4.50/5 from 737 App Store ratings · 175 written reviews indexed
- Age rating: 4+
- Requires: iOS 11.0 · 636 MB
- Languages: English
- Released: 2013-11-13
- Data updated: 2026-08-07
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/bias-amp-2-for-ipad/id711314889/reviews.md

## What is BIAS AMP 2?

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.

Features: 

    • 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: www.positivegrid.com

For more information, please visit:
www.positivegrid.com
Twitter: @PositiveGrid
facebook.com/positivegrid

## Key features

- Component-level amp modeling
- 36 included amp models
- Customizable amp components
- ToneCloud community for sharing
- Integrated reverb effects
- Multi-mic speaker cabinet emulation

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Glassy Pack | $3.99 | one-time |
| Crunch Pack | $3.99 | one-time |
| Insane Pack | $3.99 | one-time |
| Blues Pack | $3.99 | one-time |
| Bass Pack | $3.99 | one-time |
| BIAS Amp 2.0 Features Pack | $5.99 | one-time |
| BIAS Amp 2.0 Features Pack | $7.99 | one-time |
| Celestion Modern Vintage Pack | $7.99 | one-time |
| Celestion Classic Pack | $7.99 | one-time |


## What do users think of BIAS AMP 2?

Overall sentiment: mixed

**Pros**

- 🎨 Excellent sound quality
- 🔧 Highly customizable amp models
- 🤖 Seamless integration with Bias FX
- 🎸 Realistic amp response and tone

**Cons**

- 🐛 Crashes and stability issues
- 🔀 Incompatibility with other apps
- 💰 Expensive in-app purchases
- 📺 UI not optimized for larger iPad screens

**Commonly reported bugs**

- Frequent crashes on iOS 14 and newer
- Issues with audio output when used with Bias FX
- Preset data loss after app updates
- Latency and popping/crackling noises

**Most requested features**

- Add support for Audio Unit extensions
- Improve preset management and sharing
- Implement background playback support
- Add more bass and acoustic amp models

## Recent user reviews (10 of 175)

All indexed reviews: https://appshunter.io/ios/app/bias-amp-2-for-ipad/id711314889/reviews.md

### 5/5 — great app

*2026-05-21, version 2.1.15*

i play pedal steel, fiddle, mandolin, and other stuff.  i have been a pro since 1973.   yep im old now..i I have had a real trouble using foot switches and stuff for all the instruments are playing getting a good sound but this baby works great and I love that I can change sex with my fingers American chain I have a big Bluetooth for the switch also have MIDI Guitar two so I can play keyboards_This app exceeds my expectations. I love it.

### 1/5 — Left to die while they only focus on only on Spark

*2025-08-10, version 2.1.15*

No updates in over two years.

### 4/5 — Actualizar

*2024-12-27, version 2.1.15*

Buena app y buenos sonidos…se agradecería una actualización y soporte AUv3 para el iPad!!

### 1/5 — Sooooooooo out of touch

*2024-11-13, version 2.1.15*

Ok…so it sounds good and has nice features….except the one that matters most to me….auv3 support. Tbh I barely even use this anymore since we have amp sim developers who understand the IPad music production landscape now. And now that we have Logic Pro for the IPad , Bias Amps is REALLY obsolete. You guys are still working on updating iaa, really….how out of touch is that??????? 😂😂😂 This would be an instant 5 star app for me if it were an audio unit…I’ve literally bought every in app purchase for this and Bias fx and barely use either because I don’t use iaa….this can’t even be used with Logic Pro for IPad…..how smart is that????

Edit. Sooooo the app just started crashing on launch, tried everything, offloading and reinstalling it to hopefully keep all my custom presets…still kept crashing and had no choice but to completely reinstall. The good news…it’s working again…..The bad news…..I lost ALL my custom presets…..years worth. So even though I’ve bought literally every in app purchase….im done using this outdated app. Positive Grid might still be a thing as far as hardware and desktop apps go…..but they are completely obsolete and outdated yesterdays news as far as the IPad platform goes.

### 1/5 — 使えなくなった

*2024-11-03, version 2.1.15*

iPad os 18.1では、起動しません。
対応をお願いします

### 1/5 — Bias amp 2 crashes and won’t open on iOS 17.7 been like this awhile

*2024-11-03, version 2.1.15*

Bias amp 2 crashes and won’t open on iOS 17.7 been like this awhile. Immediate crash upon opening comes up then crash’s. This app is great when it works but lately it has not been. Developers need to address this issue and quickly.

### 2/5 — Perfectionism

*2024-10-07*

What can I say. I wish all audio software was like it. Everything works 100%! I can only send a huge THANK YOU to the creators and developers (yes, two very different group of people indeed), for the Love and Care they applied bring this and Bias Fx 2 to life. If you play Guitar/Bass, do your self a favour and buy this, and its Plugins, it will change Everything for your journey.

### 3/5 — プリセットチェンジ時の音のフェードインをどうにかして欲しい

*2024-09-22, version 2.1.15*

表題の通りです。お願いします。。

### 1/5 — Highly unstable after buying IAP

*2024-08-22, version 2.1.15*

Worked great for the first few days…. As soon as I hit the buy button for the Glassy Amp IAP, the audio glitched causing a painfully loud screeching sound. Bias Amp 2 and Bias FX 2 has been highly unstable ever since.

Tried deleting app and re-installing which did not fix anything. Tried on a new M4 IPad as well as a 2018 IPad, and had similar issues on both. Adjusting amp setting in Bias Amp 2 will sometimes trigger a loud screeching audio glitch… If I leave Fx2 to adjust the amp in Bias Amp 2, when I return to Bias FX2 the audio no longer works ie. Won’t output sound. 

Be very careful if using headphones, those super loud audio glitches could cause hearing damage…. Super disappointed with this one, lots of potential but just doesn’t work properly. (also the UI isn’t scaled properly on 12.9-13” iPads).

### 5/5 — Awesome

*2024-02-28, version 2.1.15*

I read the comments before I bought the whole thing. I realized MOST of the comments were from people that didn’t know what they were doing lol. Do your homework you’ll be fine it’s a good product.

## Frequently asked questions about BIAS AMP 2

### What does BIAS AMP 2 do?

BIAS AMP 2 is a professional virtual amplifier designer for iPad. It allows you to replicate existing vintage, modern, and boutique amps, or design entirely new amplifier sounds by customizing individual components like tubes, preamps, and cabinets.

### What are the key features of BIAS AMP 2?

Key features include component-level amp modeling, 36 included amp models with thousands more available via ToneCloud, fully customizable preamps and tone stacks, multi-mic speaker cabinet emulation, and integrated reverb effects. It also seamlessly integrates with other Positive Grid apps and supports Inter-App Audio and Audiobus.

### How much does BIAS AMP 2 cost?

The app is free to download and use, but offers additional preamp, power amp, and cabinet models via in-app purchase. This allows users to expand their sonic palette beyond the included models.

### What kind of tones can I create with BIAS AMP 2?

You can create a vast range of tones suitable for any genre, from classic rock and blues to metal and jazz. The app's component-level customization allows for precise sound sculpting, and the ToneCloud community provides access to thousands of user-created amps for endless sonic inspiration.

### Can I use BIAS AMP 2 with other music apps?

Yes, BIAS AMP 2 integrates seamlessly with other Positive Grid apps like BIAS FX and JamUp, as well as GarageBand and other audio apps through iOS's Inter-App Audio and Audiobus. This allows it to function as part of a comprehensive guitar system for recording and jamming.

## Version history (last 5 releases)

### 2.1.15 — 2023-06-21

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

### 2.1.14 — 2022-11-04

Fixed the output clipping noise issue

### 2.1.13 — 2021-03-30

Hi there,


This update contains the following changes:

- Fixed an issue with Audiobus connection on iOS 14


Rock on,

The Positive Grid Team

### 2.1.12 — 2020-11-19

Hi there,

This update is for fixing the crash issue when opening the app from background mode

Rock on,
The Positive Grid Team

### 2.1.11 — 2020-05-20

Hi there,

This latest version includes the updates below:
- Update DSP engine to r2244
- BIAS FX 2 Mobile integration

Rock on,
The Positive Grid Team

## Apps similar to BIAS AMP 2

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [ToneStack PRO Guitar Amps & FX](https://appshunter.io/ios/app/tonestack-pro-guitar-amps-and-fx/id1529842791) | 4.3 (71) | $9.99 | Music |
| [Crunck V2 Guitar Amplifier](https://appshunter.io/ios/app/crunck-v2-guitar-amplifier/id1493297046) | 4.8 (43) | Free | Music |

## More apps by Positive Grid Inc

- [JamUp](https://appshunter.io/ios/app/jamup/id449820506)
- [JamUp Pro](https://appshunter.io/ios/app/jamup-pro/id454702113)
- [BIAS AMP 2 - for iPhone](https://appshunter.io/ios/app/bias-amp-2-for-iphone/id807996795)
- [BT Bluetooth MIDI Pedal Editor](https://appshunter.io/ios/app/bt-bluetooth-midi-pedal-editor/id911674129)
- [BIAS FX - Guitar Amp & Effects](https://appshunter.io/ios/app/bias-fx-guitar-amp-and-effects/id937685528)

All apps by Positive Grid Inc: https://appshunter.io/developer/751979910

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-07.*