# OX | Amp Top Box vs 5ths Machine

The clearest difference is price: OX | Amp Top Box at Free against 5ths Machine's $1.99. OX | Amp Top Box also leads on update cadence (every 5 months vs every 24 months) and ratings volume (22 vs 1). 5ths Machine's advantage is rating (5.0 vs 3.7) and ads (none vs shown). On in-app purchases and iOS requirement there is nothing between them.

OX | Amp Top Box is free to download; 5ths Machine costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

5ths Machine holds the better App Store score, 5.0 against 3.7. That said, the two scores are not equally well evidenced: OX | Amp Top Box has 22 ratings behind it against 1, so its average is the more settled of the two.

OX | Amp Top Box ships an update every 5 months, 5ths Machine every 24 months. The most recent releases landed on October 24, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | OX | Amp Top Box | 5ths Machine |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | [3.7 (22 ratings)](https://appshunter.io/ios/app/ox-amp-top-box/id980695701/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/5ths-machine/id1582877284/reviews)** |
| Number of ratings | **22** | 1 |
| Positive reviews | 37.5% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 5 months** | Every 24 months |
| Monetization | **Ad-supported** | Paid |
| Size | 71 MB | 18 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Universal Audio](https://appshunter.io/developer/980695700) | [Lucy Hudson](https://appshunter.io/developer/1179157812) |

## 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


### 5ths Machine

[App page](https://appshunter.io/ios/app/5ths-machine/id1582877284)

Explore the theoretical intricacies of key signatures with an interactive quiz. Learn about the 12-position equal temperament system and discover how to identify keys with an unusual number of sharps. Understand music theory through a unique perspective.

**Highlights:** Key signature quiz, Equal temperament system explanation, Theoretical key signature exploration, Background information on music theory, Quiz tips and strategies, Chronology of music theory concepts

**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 5ths Machine free?

5ths Machine costs $1.99, with no in-app purchases.

### Which has better reviews, OX | Amp Top Box or 5ths Machine?

5ths Machine is rated higher. OX | Amp Top Box averages 3.7 out of 5 from 22 ratings, while 5ths Machine averages 5.0 from 1 ratings.

### Do OX | Amp Top Box or 5ths Machine have ads?

OX | Amp Top Box shows ads; 5ths Machine does not.

### Which is updated more often, OX | Amp Top Box or 5ths Machine?

OX | Amp Top Box ships an update every 5 months, and 5ths Machine every 24 months. Most recently, OX | Amp Top Box was updated on October 24, 2026 and 5ths Machine on October 16, 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.*