# Spex Stereo EQ — The Hearing Test EQ

> The Hearing Test EQ (iPhone/iPad app by Justin Cohen.)

- Source: https://appshunter.io/ios/app/spex-stereo-eq/id6447770169 (this page in markdown: same URL + `.md`)
- Developer: [Justin Cohen](https://appshunter.io/developer/1046396597)
- Category: Music, Music
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 16.0 · 37 MB
- Languages: English
- Released: 2023-05-25
- Data updated: 2026-05-14
- User reviews in markdown: https://appshunter.io/ios/app/spex-stereo-eq/id6447770169/reviews.md

## What is Spex Stereo EQ?

Roughly 9 years ago, I supported a product on Indiegogo called, Aumeo. It was a device that gave you a hearing test and then tailored the sound of your music based on your unique hearing profile. I really liked the results and wished that someone would bake this technology into phones, negating the need for a separate device.

Spex was born out of this wish.

Spex will give you a hearing test and then build a parametric stereo EQ based on the results. If the EQ is not exactly how you like it, you can fine-tune it with intuitive controls. First, you can slide the intensity slider to find your sweet spot. If you're still not satisfied, you can manually adjust the 12-band stereo EQ.

The base version gives you unfettered access to create as many EQ profiles as you want. If you upgrade to Pro, you can also access a volume slider that will give you greater control over volume than is provided by the volume keys. Pro also gives you the ability to tweak the player interface and duplicate EQ's.

If you want to skip the hearing test, you can jump right in and tap the Fine-Tune button on the default flat EQ to make use of the 12-band stereo EQ.

Please note that the EQ can only be applied to non-encrypted tracks in your music library. This means EQ cannot be applied to subscription music tracks. If Apple provides a way to EQ encrypted tracks, I will update Spex.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Spex Pro | $9.99 | one-time |



## Version history (last 5 releases)

### 2.4 — 2024-05-06

Added a confetti animation that fires each time a band is completed during the hearing test.
Smoothed out audio transitions within the hearing test.

### 2.3 — 2024-05-05

Added a button to reset a tone during the hearing test.
Added a button to cancel the hearing test.
Updated the text explaining what to expect from the hearing test.
Removed the possibility of a popping sound that could sometimes occur when playing or stopping a tone during the hearing test.
Removed an errant alert that popped up on launch.

### 2.2 — 2024-03-05

There is now a welcome message that guides users to the Profiles tab to create their first EQ.

### 2.1 — 2024-02-25

The base version now provides access to an 8-band stereo hearing test with 12 bands that can be fine-tuned.
The pro upgrade provides access to a subtle volume slider that gives greater volume control than is available through the volume keys, as well as options to change the player interface and duplicate EQ profiles.

### 2.0 — 2024-02-07

Many words removed. 
Streamlined experience. 
4-band and 10-band EQ options now complement the pre-existing 8-band EQ.
Option to jump right into your music without first taking a hearing test.

I want to make this awesome for you so send me your requests through the app.

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## More apps by Justin Cohen

- [Sleep Show Piano Lullabies](https://appshunter.io/ios/app/sleep-show-piano-lullabies/id1046396598)

All apps by Justin Cohen: https://appshunter.io/developer/1046396597

## Related topics

[eqverifiers](https://appshunter.io/ios/topics/eqverifiers)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-14.*