# VStomp Amp HD vs Cali Axis Guitar Amplifier

The clearest difference is review sentiment: Cali Axis Guitar Amplifier at 100% against VStomp Amp HD's 33%. Cali Axis Guitar Amplifier also leads on rating (5.0 vs 4.2) and in-app purchases (none vs 10). VStomp Amp HD's advantage is price (Free vs $9.99) and update cadence (every 3 weeks vs every 38 months). On ratings volume and ads there is nothing between them.

VStomp Amp HD is free to download; Cali Axis Guitar Amplifier costs $9.99 up front. VStomp Amp HD sells 10 one-off in-app purchases. Cali Axis Guitar Amplifier asks for nothing beyond the download.

Cali Axis Guitar Amplifier holds the better App Store score, 5.0 against 4.2. Both are backed by a comparable volume of ratings — 10 and 7 respectively. Written reviews point the same way: 33% of VStomp Amp HD's written reviews are positive against 100% of Cali Axis Guitar Amplifier's.

VStomp Amp HD ships an update every 3 weeks, Cali Axis Guitar Amplifier every 38 months. The most recent releases landed on November 2, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | VStomp Amp HD | Cali Axis Guitar Amplifier |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | [4.2 (10 ratings)](https://appshunter.io/ios/app/vstomp-amp-hd/id1411210567/reviews) | **[5.0 (7 ratings)](https://appshunter.io/ios/app/cali-axis-guitar-amplifier/id6451101787/reviews)** |
| Number of ratings | **10** | 7 |
| Positive reviews | 33.3% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 38 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 114 MB | 29 MB |
| Requires iOS | **9.0** | 15 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | +4 |
| Developer | [Hotone](https://appshunter.io/developer/982536111) | [Nembrini Audio](https://appshunter.io/developer/1493296895) |

## What reviewers say

### VStomp Amp HD

[App page](https://appshunter.io/ios/app/vstomp-amp-hd/id1411210567)

Experience legendary amplifier tones on your mobile device. This app uses advanced modeling technology to deliver realistic guitar and bass amp simulations with built-in effects and a user-friendly interface.

**Highlights:** Advanced CDCM modeling system, 23+ legendary amplifier models, 20+ classic cabinet models, Built-in delay and reverb effects, Smart noise gate, Simple, intuitive UI

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fryman HB | $0.99 | one-time |
| Rector 4x12 | $0.99 | one-time |
| Rector Dual | $1.99 | one-time |
| BASS PACK | $1.99 | one-time |
| CRUNCH PACK | $2.99 | one-time |
| ALL-CAB PACK | $4.99 | one-time |
| SPECIAL LEAD PACK | $4.99 | one-time |
| HIGH GAIN PACK | $9.99 | one-time |
| ALL-AMP PACK | $29.99 | one-time |
| ALL-IN PACK | $29.99 | one-time |


### Cali Axis Guitar Amplifier

[App page](https://appshunter.io/ios/app/cali-axis-guitar-amplifier/id6451101787)

This app offers a versatile guitar amplifier simulation with multiple preamp modes, an FX section, and a power amp. It includes digital delay, analog modulations, ambient reverb, and a noise gate for shaping your sound. Works as a standalone app or with other audio applications.

**Highlights:** Multiple preamp modes, Adjustable FX section, Virtual EL34 power tubes, Digital delay with filter and offset, Analog Chorus or Tremolo, Ambient Hall reverb, Noise gate and studio compressor

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is VStomp Amp HD free?

VStomp Amp HD is free to download, with in-app purchases available.

### Is Cali Axis Guitar Amplifier free?

Cali Axis Guitar Amplifier costs $9.99, with no in-app purchases.

### Which has better reviews, VStomp Amp HD or Cali Axis Guitar Amplifier?

Cali Axis Guitar Amplifier is rated higher. VStomp Amp HD averages 4.2 out of 5 from 10 ratings, while Cali Axis Guitar Amplifier averages 5.0 from 7 ratings.

### Do VStomp Amp HD or Cali Axis Guitar Amplifier have ads?

Neither VStomp Amp HD nor Cali Axis Guitar Amplifier shows ads.

### Which is updated more often, VStomp Amp HD or Cali Axis Guitar Amplifier?

VStomp Amp HD ships an update every 3 weeks, and Cali Axis Guitar Amplifier every 38 months. Most recently, VStomp Amp HD was updated on November 2, 2026 and Cali Axis Guitar Amplifier on November 5, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*