# Qudelix vs EFNOTE Tools

The clearest difference is rating: Qudelix at 4.4 against EFNOTE Tools's 2.5. Qudelix also leads on update cadence (every 3 weeks vs every 22 months) and ratings volume (78 vs 2). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Qudelix holds the better App Store score, 4.4 against 2.5. That said, the two scores are not equally well evidenced: Qudelix has 78 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 69% of Qudelix's written reviews are positive against 50% of EFNOTE Tools's.

Qudelix ships an update every 3 weeks, EFNOTE Tools every 22 months. The most recent releases landed on October 4, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Qudelix | EFNOTE Tools |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (78 ratings)](https://appshunter.io/ios/app/qudelix/id1515641059/reviews)** | [2.5 (2 ratings)](https://appshunter.io/ios/app/efnote-tools/id1619444444/reviews) |
| Number of ratings | **78** | 2 |
| Positive reviews | **68.9% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 22 months |
| Monetization | Free | Free |
| Size | 27 MB | 27 MB |
| Requires iOS | 15.6 | **14.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Qudelix, Inc.](https://appshunter.io/developer/1515641058) | [Ef-Note Inc.](https://appshunter.io/developer/1619444446) |

## What reviewers say

### Qudelix

[App page](https://appshunter.io/ios/app/qudelix/id1515641059)

This app serves as an official remote controller for the Qudelix-5K Bluetooth DAC AMP. It allows users to manage various functions, including equalizer settings, volume, and firmware updates, all via a BLE connection.

**Highlights:** BLE control and monitoring, Equalizer adjustment, Battery level display, Firmware updates, Volume control, Bluetooth codec information

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Excellent app, works perfect
- 💡 Amazing EQ results
- 🚀 Super long term support
- 👍 NO bugs. Runs well.
- 👍 Great control app

**What reviewers complain about**

- 🐛 UI clearly created by engineers
- 🐛 Documentation not updated correctly
- 🐛 Unacceptable basic feature setup
- 🐛 Won't recognize Bluetooth devices
- 🐛 Useless if can't connect device

**Reported bugs**

- App needs work
- Documentation does not provide a coherent answer
- Wont recognize any Bluetooth devices
- App is useless if you can’t connect a device to it
- Doesn’t work on iPhone 15

**Requested features**

- How to set a preset for PEQ for each headphone
- Firefox or Safari extension
- Dark mode
- Live 20 band VU meter displayed in low opacity behind EQ curve
- Update autoeq list


### EFNOTE Tools

[App page](https://appshunter.io/ios/app/efnote-tools/id1619444444)

This app allows electronic drum users to customize and manage their drum kits, trigger settings, and bus settings. It provides access to a library of new drum kits, sound swapping, and remote control of pad levels and mixer settings. Firmware updates and product support are also available.

**Highlights:** Save/load customized drum kits, Save/load trigger and bus settings, Access online Kit Library, Swap sounds between pads, Remote pad level control, Firmware updates, Product support access

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Qudelix free?

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

### Is EFNOTE Tools free?

EFNOTE Tools is free to download, with no in-app purchases.

### Which has better reviews, Qudelix or EFNOTE Tools?

Qudelix is rated higher. Qudelix averages 4.4 out of 5 from 78 ratings, while EFNOTE Tools averages 2.5 from 2 ratings.

### Do Qudelix or EFNOTE Tools have ads?

Neither Qudelix nor EFNOTE Tools shows ads.

### Which is updated more often, Qudelix or EFNOTE Tools?

Qudelix ships an update every 3 weeks, and EFNOTE Tools every 22 months. Most recently, Qudelix was updated on October 4, 2026 and EFNOTE Tools on September 30, 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.*