Comparison

VStomp Amp 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

VStomp Amp

This app provides realistic, studio-quality guitar and bass amplifier sounds on your mobile device. It uses advanced modeling technology to replicate legendary amps and cabinets, offering a simple interface for musicians to achieve great tones.

Highlights
  • Realistic amp and cab modeling
  • CDCM modeling system
  • Vintage and modern amp models
  • Classic cabinet models
  • Delay and reverb effects
  • IR loader
  • Smart noise gate
Features
Read full description

HEART POUNDING AMPLIFIERS ON THE GO The heart pounding VStomp Amp is now ready to go! Following the development of Hotone’s powerful and versatile XTOMP pedal and based on our proprietary CDCM system, VStomp Amp Mobile delivers organic, studio-grade sound quality and the exact character of legendary amplifiers – just the same as desktop version. PLAY REAL – POWERED BY CDCM SYSTEM Unlike mainstream modeling methods based on the characteristics of a certain “state” of the circuitry, which just “comes close” to the modeled sound, VStomp Amp Mobile employs a complex system based on dynamic feature modeling. In this matrix, every single circuit component is ALIVE and performs like its original. The realness of the amp and effects tones has amazed XTOMP users worldwide, and now you can experience it on the go! Behind VStomp Amp Mobile is Hotone’s CDCM (Comprehensive Dynamic Circuit Modeling) system. CDCM is built on an extremely complex dynamic variation matrix, able to realistically express every detailed change that occurs during the operational process of actual circuitry. This matrix will adjust its own modeling parameters and even framework based on the instrument input signal range, signal frequency, knob position, the instrument’s own impedance, and other variable parameters, all to achieve the closest possible characteristics of actual modeled circuitry. THE ESSENTIALS No complex signal chain. No confusing customization or combinations. You pick an amp model, pick a cab model, add some ambience – it’s that simple! The less you tweak, the more you enjoy: just pick out your rig and ROCK! FEATURES λ Grown out of next-gen XTOMP technology λ Simple-but-real guitar/bass amp simulator with easy-to-use UI λ Advanced CDCM modeling system ensures realistic playing experience λ Growing amp/cab library λ 23+ CDCM powered legendary vintage and modern amplifier models λ 20+ CDCM powered classic cabinet models λ Built-in delay and reverb effects with simple operation and huge ambience λ Built-in IR loader for applying your favorite cabs λ Built-in smart noise gate For more information: www.hotoneaudio.com

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

VStomp Amp4 screens
jAmp 81004 screens

Verdict

The call

The clearest difference is rating: jAmp 8100 at 5.0 against VStomp Amp's 4.5. jAmp 8100 also leads on update cadence (every 3 weeks vs every 2 months) and device support (4 vs 2). VStomp Amp's advantage is review sentiment (75% vs 67%) and iOS requirement (9.0 vs 14.0). On price, ratings volume, ads and in-app purchases 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

Both are free to download. VStomp Amp sells 14 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 4.5. Both are backed by a comparable volume of ratings — 10 and 6 respectively. Written reviews complicate that: 75% of VStomp Amp's written reviews are positive against 67% of jAmp 8100's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

VStomp Amp ships an update every 2 months, jAmp 8100 every 3 weeks. The most recent releases landed on July 28, 2026 and August 31, 2026 respectively.

Scorecard5 real differences · 5 level
VStomp Amp versus jAmp 8100: the parameters behind the verdict, then further details
ParameterVStomp AmpjAmp 8100
PriceFreeFree
Rating4.5 (10 ratings)5.0 (6 ratings) — better
Positive reviews75.0% of reviews — better66.7% of reviews
Number of ratings10 — better6
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod, Mac — better
Requires iOS9.0 — better14.0
Further details — not scored
Size172 MB34 MB
Age rating4+4+
DeveloperHotoneJan Maes

Customer experience

VStomp Amp

All ratings10 ratings
Positive90.0%
Neutral10.0%
Negative0.0%
Written reviews4 reviews
Positive75.0%
Neutral25.0%
Negative0.0%

jAmp 8100

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

In-app purchases

14 purchases

VStomp Amp

One-time14
  • Dizzle 4x12$0.99
  • Dizzle VH$0.99
  • Fryman HB$0.99
Show 11 more
  • Mark 2x10$0.99
  • Silver Twin 2x12$0.99
  • Marshell 900$0.99
  • Tangerine A30$0.99
  • BASS PACK$1.99
  • Eddie 51$1.99
  • Engle Saga$1.99
  • Rector Dual$1.99
  • ALL-CAB PACK$4.99
  • HIGH GAIN PACK$9.99
  • ALL-AMP PACK$29.99
1 purchases

jAmp 8100

One-time1
  • jAmp 8100 Activation$11.99

Questions

Is VStomp Amp free?
VStomp Amp is free to download, with in-app purchases available.
Is jAmp 8100 free?
jAmp 8100 is free to download, with in-app purchases available.
Which has better reviews, VStomp Amp or jAmp 8100?
jAmp 8100 is rated higher. VStomp Amp averages 4.5 out of 5 from 10 ratings, while jAmp 8100 averages 5.0 from 6 ratings.
Do VStomp Amp or jAmp 8100 have ads?
Neither VStomp Amp nor jAmp 8100 shows ads.
Which is updated more often, VStomp Amp or jAmp 8100?
VStomp Amp ships an update every 2 months, and jAmp 8100 every 3 weeks. Most recently, VStomp Amp was updated on July 28, 2026 and jAmp 8100 on August 31, 2026.

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