BIAS AMP 2 vs PREAMP X7 PRO
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BIAS AMP 2
Design your dream amplifier with this virtual amp designer. Replicate classic and modern amps, or build new sounds by swapping components like tubes and cabinets. Access a vast community of shared tones for endless sonic inspiration.
- Component-level amp modeling
- Design custom amplifiers
- Swap tubes, preamps, and cabinets
- Access ToneCloud community
- Multi-mic speaker cabinet emulation
- Integrated reverb effects
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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 iPhone. 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 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 app, 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 • Seamless integration with BIAS FX, JamUp and JamUp Pro; 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
PREAMP X7 PRO
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◆此产品是具有音响处理器功能的卡拉OK效果器。每个部分都可独立调节。 ◆采用24Bit数据总线和32Bit双DSP处理器。 ◆音乐输入通道支持两路RCA(莲花头)立体声输入及蓝牙播放并设有7段均衡调节。 ◆麦克风通道设有压限、反馈抑制及15段均衡调节。 ◆主输出通道设有压限、通道延时、5段均衡调节和音乐、麦克风、效果音量调节。 ◆中置 后置输出设有压限、通道输出延时、3段均衡调节和音乐、麦克风、效果音量调节。 ◆超低音输出设有压缩、通道输出延时、高低通滤波器3段均衡调节和音乐、麦克风、效果音量调节。 ◆可以储存20种模式并支持电脑导入导出,多台机器同时使用同一模式文件。 ◆内设用户和管理者模式 ,用户模式在调节参数后提供临时保存。 ◆中英文显示切换。 ◆电脑软件控制精细参数。 ◆蓝牙手机播放及APP蓝牙手机控制参数。 ◆可以通过电脑软件“自动键盘锁功能”限制 。 ◆5.1声道环绕立体声。 ◆一键自动防啸叫功能让您“唱”通无阻。 ◆Complete microphone amplifier system ◆24 Bit data bus, 32 Bit dual DSP processor ◆Two individual audio inputs with Bluetooth and a 7-band EQ ◆Feedback function and 15-band EQ in Microphone input ◆Built-in compression, delay, 5-band EQ, 5-band EQ, audio leveler, and effects via microphone output. ◆20 preset slots. Allow users to import/export presets via computer software ◆Administrator mode and user mode ◆EN/CN UI available ◆Computer software editor and automatic lock function ◆Bluetooth audio playback. Controlling your PREAMP X7 via smart phone application ◆FL, FR, CEN, RL, RR, SW stereo output ◆One-touch feedback reduction button
Screenshots
Verdict
The clearest difference is in-app purchases: PREAMP X7 PRO at none against BIAS AMP 2's 9. PREAMP X7 PRO also leads on iOS requirement (9.0 vs 11.0). BIAS AMP 2's advantage is update cadence (monthly vs every 5 months). On price, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. BIAS AMP 2 sells 9 one-off in-app purchases. PREAMP X7 PRO asks for nothing beyond the download.
BIAS AMP 2 ships an update monthly, PREAMP X7 PRO every 5 months. The most recent releases landed on November 1, 2026 and October 25, 2026 respectively.
| Parameter | BIAS AMP 2 | PREAMP X7 PRO |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (651 ratings) — better | — |
| Positive reviews | 49.6% of reviews | — |
| Number of ratings | 651 — better | — |
| Update frequency | Monthly — better | Every 5 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 11.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 633 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | Positive Grid Inc | mooer |
Bugs and requests
BIAS AMP 2
Reported bugs
4 issues- Annoying static/feedback noises
- Amp match feature not working
- Unable to turn off cab simulation
- Wireless headphone connectivity issues
Requested features
5 requests- Add metronome
- Improve inter-app audio support
- Implement AUv3 support
- Allow restoring purchases across devices
- Increase interface size for iPhone
PREAMP X7 PRO
Not enough reviews yet to summarise bugs or requests.
In-app purchases
BIAS AMP 2
- GlassyPack$3.99
- CrunchPack$3.99
- MetalPack$3.99
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- Bass Pack$3.99
- Blues Pack$3.99
- BIAS Amp 2.0 Features Pack$6.99
- Celestion Modern Vintage Pack$7.99
- Celestion Classic Pack$7.99
- BIAS Amp 2.0 Features Pack$7.99
PREAMP X7 PRO
No in-app purchases
Questions
Is BIAS AMP 2 free?
Is PREAMP X7 PRO free?
Do BIAS AMP 2 or PREAMP X7 PRO have ads?
Which is updated more often, BIAS AMP 2 or PREAMP X7 PRO?
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