# Sonaur vs IDUN Insights

The clearest difference is in-app purchases: IDUN Insights at none against Sonaur's 1. Sonaur's advantage is ratings volume (12 vs 1) and update cadence (every 9 days vs every 3 weeks). On price, rating, ads and device support there is nothing between them.

Both are free to download. Sonaur sells 1 one-off in-app purchase. IDUN Insights asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.9 for Sonaur against 5.0 for IDUN Insights. That said, the two scores are not equally well evidenced: Sonaur has 12 ratings behind it against 1, so its average is the more settled of the two.

Sonaur ships an update every 9 days, IDUN Insights every 3 weeks. Both last shipped on October 28, 2026.

## The numbers

| Metric | Sonaur | IDUN Insights |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (12 ratings)](https://appshunter.io/ios/app/sonaur/id6755934796/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/idun-insights/id6780687022/reviews)** |
| Number of ratings | **12** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 61 MB | 99 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Scott Kiekbusch](https://appshunter.io/developer/1857439513) | [IDUN Technologies](https://appshunter.io/developer/1688360769) |

## What reviewers say

### Sonaur

[App page](https://appshunter.io/ios/app/sonaur/id6755934796)

This app transforms real-time data, like weather or biometrics, into evolving ambient music. It offers unique, artist-composed soundscapes that adapt to your environment and personal rhythms, perfect for focus, relaxation, or sleep. Enjoy an uninterrupted, personalized listening experience.

**Highlights:** Real-time weather-driven music, Artist-composed sonic palettes, Biometric sound shaping (Apple Watch), Binaural beats for focus/sleep, Sleep timer, Lock screen playback

**Features:** Family Sharing, Apple Watch app

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sonaur Health Mode | $19.99 | one-time |


### IDUN Insights

[App page](https://appshunter.io/ios/app/idun-insights/id6780687022)

This app helps you understand and manage your mental energy using your earbuds. It provides a daily 'Brain Battery' score, guided sessions for focus and relaxation, and insights based on your calendar and check-ins to help you optimize your energy levels.

**Highlights:** Brain Battery score, Daily check-ins, Focus Sessions, Relaxation Sessions, Calendar integration, Weekly insights

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

**In-app purchases:** none


## Frequently asked questions

### Is Sonaur free?

Sonaur is free to download, with in-app purchases available.

### Is IDUN Insights free?

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

### Which has better reviews, Sonaur or IDUN Insights?

IDUN Insights is rated higher. Sonaur averages 4.9 out of 5 from 12 ratings, while IDUN Insights averages 5.0 from 1 ratings.

### Do Sonaur or IDUN Insights have ads?

Neither Sonaur nor IDUN Insights shows ads.

### Which is updated more often, Sonaur or IDUN Insights?

Sonaur ships an update every 9 days, and IDUN Insights every 3 weeks. Most recently, Sonaur was updated on October 28, 2026 and IDUN Insights on October 28, 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.*