# OX | Amp Top Box vs Decibel Display

The clearest difference is rating: Decibel Display at 4.3 against OX | Amp Top Box's 3.7. Decibel Display also leads on ads (none vs shown) and update cadence (monthly vs every 5 months). On price, review sentiment, ratings volume and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Decibel Display holds the better App Store score, 4.3 against 3.7. Both are backed by a comparable volume of ratings — 22 and 11 respectively. Written reviews point the same way: 38% of OX | Amp Top Box's written reviews are positive against 40% of Decibel Display's.

OX | Amp Top Box ships an update every 5 months, Decibel Display monthly. The most recent releases landed on November 1, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | OX | Amp Top Box | Decibel Display |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (22 ratings)](https://appshunter.io/ios/app/ox-amp-top-box/id980695701/reviews) | **[4.3 (11 ratings)](https://appshunter.io/ios/app/decibel-display/id1480358065/reviews)** |
| Number of ratings | **22** | 11 |
| Positive reviews | 37.5% of reviews | **40.0% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Monthly** |
| Monetization | Ad-supported | **Free** |
| Size | 71 MB | 12 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Universal Audio](https://appshunter.io/developer/980695700) | [Process Audio](https://appshunter.io/developer/1480358064) |

## What reviewers say

### OX | Amp Top Box

[App page](https://appshunter.io/ios/app/ox-amp-top-box/id980695701)

Control your tube amp's legendary tone from anywhere with this companion app. Access a virtual studio of speaker cabinets, microphones, and effects to craft album-quality guitar sounds. Store your custom presets directly to your hardware.

**Highlights:** Full Rig control via Wi-Fi, 120+ Rig presets, 22 classic speaker cabinets, Boutique mic combinations, Studio amp tone effects, Custom preset storage

**In-app purchases:** none


### Decibel Display

[App page](https://appshunter.io/ios/app/decibel-display/id1480358065)

This companion app displays audio metering data from its desktop counterpart on your smartphone or tablet. Design custom multi-meter presets with various meter types, colors, and shapes for real-time audio analysis.

**Highlights:** Real-time audio metering, Customizable meter presets, VU Meter, LUFS, RMS, Spectrum Analyzer, Phase-scope, Modular design

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is OX | Amp Top Box free?

OX | Amp Top Box is free to download, with no in-app purchases.

### Is Decibel Display free?

Decibel Display is free to download, with no in-app purchases.

### Which has better reviews, OX | Amp Top Box or Decibel Display?

Decibel Display is rated higher. OX | Amp Top Box averages 3.7 out of 5 from 22 ratings, while Decibel Display averages 4.3 from 11 ratings.

### Do OX | Amp Top Box or Decibel Display have ads?

OX | Amp Top Box shows ads; Decibel Display does not.

### Which is updated more often, OX | Amp Top Box or Decibel Display?

OX | Amp Top Box ships an update every 5 months, and Decibel Display monthly. Most recently, OX | Amp Top Box was updated on November 1, 2026 and Decibel Display on November 7, 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.*