Comparison

JamUp Pro vs jAmp 8100

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

JamUp Pro

This app provides a powerful multi-effects processor for guitar and bass, offering a vast library of amp and effect models. Users can create custom signal chains, access a community of shared presets, and record their music.

Highlights
  • Multi-effects processor for guitar and bass
  • Access to 6 amps and 16 premium effects
  • Customizable signal chain with drag-and-drop interface
  • ToneCloud® for sharing and downloading presets
  • Jam Player with tempo and pitch adjustment
  • 8-track recorder and phrase sampler
  • Seamless integration with BIAS Amp
Read full description

JamUp is the #1 multi-effects processor for guitar and bass. Available for iPad and iPhone, JamUp gives you instant access to a ToneCloud® sharing community with over 10,000 presets from artists, user, and our own Positive Grid team. It’s designed to work seamlessly with BIAS Amp to create your ultimate guitar amp. With more than 3 million users worldwide, JamUp has been featured in Macworld, Premier Guitar, Guitar World, Guitar Player, and more. The original JamUp comes equipped with one amp and six effects. JamUp Pro gives you the power of six amps and 16 premium rack and stomp-box effects, including distortion, compression, tape delay, tremolo, and spring reverb. Both JamUp and JamUp Pro include jam player, phase sampler, tone sharing, preset manager, optional 8-track recorder, live view, tuner, and metronome. With its easy-to-use drag-and-drop interface, JamUp enables you to arrange a studio-quality collection of amps and effects models into your own custom signal chain. Get the optional expansion packs for access to a mind-boggling 52 amp channels and 50 classic effects. Each amp model has been developed using Positive Grid’s MESH multi-stage modeling technology, and has been meticulously measured and analyzed against actual hardware. With its dead-on accuracy and tube-like touch and feel JamUp delivers dramatically improved sonic performance over other digital amp modelers. Import songs from your iTunes library to jam along with using the Jam Player module. Adjust the tempo and pitch with the high-fidelity time-stretching engine. Easily record and layer looped parts with the sound-on-sound phrase sampler. With the built-in tuner and metronome, and optional 8-track recorder, JamUp delivers a complete, professional processing and recording solution. Join our worldwide community with JamUp’s ToneCloud® connectivity. Create, share, and download custom presets right inside JamUp. Check out presets from top artists, staff picks, or user-created tones from all over the world. JamUp now seamlessly integrates with Positive Grid’s BIAS Amp app, instantly expanding JamUp into a powerful and completely unified professional guitar system for live performance, recording, and jamming. Features: ● Real-time guitar/bass amp and multi-effects processor ● Seamless integration with BIAS Amp ● Simultaneously run seven amp and effects models ● Drag-and-drop signal path for easy tone creation ● Six amps and 16 premium effects ● Additional 48 amp channels and 40 effect models (via in-app purchase expansion packs) ● Complete 8-track recorder system (via in-app purchase) ● Phrase sampler with undo feature, start module selection, and synchronized metronome ● Access to your iTunes library with time stretching (pitch/speed) engine via Jam Player module ● Tone sharing, allowing you to download over 10,000 artist and user presets or share your own ● 128 slot preset manager ● Live view control page ● Built-in tuner/metronome ● MIDI learning and assignment ● Audio copy/paste ● Audiobus support in 3 slots ● And much more! For iPhone 7 users: You will need a Lightning interface with an output to use this Positive Grid app. For more information, please visit: https://help.positivegrid.com/hc/en-us/articles/115003558023-How-to-set-up-with-my-iPhone-iPad- For more information, please visit: www.positivegrid.com Twitter: @PositiveGrid facebook.com/positivegrid

About

jAmp 8100

This app digitally emulates a classic 90s solid-state guitar amplifier, offering authentic tones favored by metal bands. It functions as a standalone app or a plugin within DAWs, featuring a noise gate, compressor, and various effects.

Highlights
  • Marshall Valvestate 8100 emulation
  • Standalone and AUv3 plugin support
  • Noise gate and compressor
  • Ibanez Tube Screamer emulation
  • Impulse response (IR) loader
  • MIDI controller support
Features
Read full description

jAmp 8100 represents a digital emulation of the Marshall Valvestate 8100 amplifier, which stood out as one of the most impressive-sounding amplifiers of the 90s. Numerous metal bands showcased this amplifier in their albums, with particularly notable appearances in the works of bands such as Death, Prong, and Static-X. Features: - Standalone, or as a AUv3 plugin in GarageBand, Logic Pro, or other DAW. - Marshall Valvestate 8100 emulation - Noise gate - Compressor - Ibanez Tube Screamer emulation - Pre amp chorus - Five band post amp equalizer - Post amp stereo chorus - Impulse response (IR) loader - MIDI controller support with MIDI learn - Stereo effect - Integrated IRs by forward-audio.com and Valhallir.at The free version allows you to test jAmp 8100 completely, but every minute the amplifier will be silent for 3 seconds. To remove these limits there is a one time in-app purchase. You need an audio interface to connect your instrument to your mobile device. Known audio interface brands are for instance Focusrite or iRig. For iPad you might want to consider using a USB-C hub with power delivery to avoid draining your battery during your jam session, but this is optional. For iPhone you will need to use an adapter that can  1. connect via lightning port to your iPhone 2. connect to your phone charger with USB 3. connect to your audio interface with USB If you have a Focusrite Scarlett 2i2 or similar you can use the lighting to USB 3 camera adapter for this which is easily available in the market. Your iPhone cannot deliver enough power on its own to feed the audio interface, so this adapter with a connection to your phone charger is necessary. If you don't have an audio interface, you can still use the AUv3 plugin in a DAW such as GarageBand or Logic Pro. Any (guitar) sound you have recorded can be fed through the jAmp 8100 audio unit to add solid state distortion or any of the other included effects.

Screenshots

JamUp Pro4 screens
jAmp 81004 screens

Verdict

The call

The clearest difference is price: jAmp 8100 at Free against JamUp Pro's $7.99. jAmp 8100 also leads on rating (5.0 vs 4.6) and update cadence (every 3 weeks vs every 2 months). JamUp Pro's advantage is ratings volume (715 vs 6) and iOS requirement (10.0 vs 14.0). On review sentiment, ads, in-app purchases and monetization model 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

CostPrice · In-app purchases · Ads · Monetization

jAmp 8100 is free to download; JamUp Pro costs $7.99 up front. JamUp Pro sells 10 one-off in-app purchases and jAmp 8100 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

jAmp 8100 holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: JamUp Pro has 715 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 65% of JamUp Pro's written reviews are positive against 67% of jAmp 8100's.

UpkeepUpdate frequency

JamUp Pro ships an update every 2 months, jAmp 8100 every 3 weeks. The most recent releases landed on October 18, 2026 and September 27, 2026 respectively.

Scorecard5 real differences · 5 level
JamUp Pro versus jAmp 8100: the parameters behind the verdict, then further details
ParameterJamUp ProjAmp 8100
Price$7.99Free — better
Rating4.6 (715 ratings)5.0 (6 ratings) — better
Positive reviews64.9% of reviews66.7% of reviews — better
Number of ratings715 — better6
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS10.0 — better14.0
Further details — not scored
Size309 MB34 MB
Age rating4+4+
DeveloperPositive Grid IncJan Maes

Customer experience

JamUp Pro

All ratings715 ratings
Positive90.9%
Neutral2.4%
Negative6.7%
Written reviews362 reviews
Positive64.9%
Neutral9.1%
Negative26.0%

jAmp 8100

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

Bugs and requests

JamUp Pro

Reported bugs

4 issues
  • Jam/playback feature not working
  • Preset saving/loading issues
  • Incompatibility with newer iPhones
  • Frequent crashes and freezes

Requested features

5 requests
  • More customization options
  • Improved MIDI support
  • Better integration with DAWs
  • Stereo effects support
  • Ability to import custom IRs

jAmp 8100

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

JamUp Pro

One-time10
  • Whammy$3.99
  • 8-Track Recorder$4.99
  • Metal Expansion Pack$9.99
Show 7 more
  • Classic Expansion Pack$9.99
  • Effect Expansion Pack$9.99
  • Bass Expansion Pack$9.99
  • Boutique Expansion Pack$9.99
  • Metal Expansion Pack II$9.99
  • Acoustic Expansion Pack$9.99
  • All Access$24.99
1 purchases

jAmp 8100

One-time1
  • jAmp 8100 Activation$11.99

Questions

Is JamUp Pro free?
JamUp Pro costs $7.99, and also offers in-app purchases.
Is jAmp 8100 free?
jAmp 8100 is free to download, with in-app purchases available.
Which has better reviews, JamUp Pro or jAmp 8100?
jAmp 8100 is rated higher. JamUp Pro averages 4.6 out of 5 from 715 ratings, while jAmp 8100 averages 5.0 from 6 ratings.
Do JamUp Pro or jAmp 8100 have ads?
Neither JamUp Pro nor jAmp 8100 shows ads.
Which is updated more often, JamUp Pro or jAmp 8100?
JamUp Pro ships an update every 2 months, and jAmp 8100 every 3 weeks. Most recently, JamUp Pro was updated on October 18, 2026 and jAmp 8100 on September 27, 2026.

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