# écoute vs Otterlocks

The clearest difference is iOS requirement: écoute at 12.0 against Otterlocks's 15.1. On price, update cadence, ads 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.

écoute ships an update every 3 months, Otterlocks every 2 months. The most recent releases landed on September 1, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | écoute | Otterlocks |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/ecoute/id6739830272/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 28 MB | 24 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ecoute Audio Inc.](https://appshunter.io/developer/1787247536) | [Otterlocks](https://appshunter.io/developer/1835934140) |

## What reviewers say

### écoute

[App page](https://appshunter.io/ios/app/ecoute/id6739830272)

Personalize your audio experience by fine-tuning headphone sound profiles. Adjust frequency response curves, manage settings, and update firmware for optimal performance. Create custom presets for a tailored listening journey.

**Highlights:** Personalized listening experience, Adjust frequency response curves, 7 genre-based presets, 5 custom preset slots, Manage headphone settings, Check battery level, Firmware updates

**Features:** macOS Compatibility

**In-app purchases:** none


### Otterlocks

[App page](https://appshunter.io/ios/app/otterlocks-safe-sync/id6751594201)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is écoute free?

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

### Is Otterlocks free?

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

### Do écoute or Otterlocks have ads?

Neither écoute nor Otterlocks shows ads.

### Which is updated more often, écoute or Otterlocks?

écoute ships an update every 3 months, and Otterlocks every 2 months. Most recently, écoute was updated on September 1, 2026 and Otterlocks on September 19, 2026.

---

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