VStomp Amp vs jAmp 8100
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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
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.
- Marshall Valvestate 8100 emulation
- Standalone and AUv3 plugin support
- Noise gate and compressor
- Ibanez Tube Screamer emulation
- Impulse response (IR) loader
- MIDI controller support
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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
Verdict
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
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.
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.
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.
| Parameter | VStomp Amp | jAmp 8100 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (10 ratings) | 5.0 (6 ratings) — better |
| Positive reviews | 75.0% of reviews — better | 66.7% of reviews |
| Number of ratings | 10 — better | 6 |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 9.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 172 MB | 34 MB |
| Age rating | 4+ | 4+ |
| Developer | Hotone | Jan Maes |
Customer experience
VStomp Amp
jAmp 8100
In-app purchases
VStomp Amp
- Dizzle 4x12$0.99
- Dizzle VH$0.99
- Fryman HB$0.99
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- 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
jAmp 8100
- jAmp 8100 Activation$11.99









