# NostEcho vs aud

The clearest difference is price: aud at Free against NostEcho's $5.99. aud also leads on device support (3 vs 1). NostEcho's advantage is in-app purchases (none vs 1) and iOS requirement (18.6 vs 26.5). On update cadence and ads there is nothing between them.

aud is free to download; NostEcho costs $5.99 up front. aud sells 1 one-off in-app purchase. NostEcho asks for nothing beyond the download.

NostEcho ships an update every 6 days, aud weekly. The most recent releases landed on October 2, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | NostEcho | aud |
| --- | --- | --- |
| Price | $5.99 | **Free** |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/aud-io/id6787083966/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Weekly |
| Monetization | — | Freemium |
| Size | 16 MB | 128 MB |
| Requires iOS | **18.6** | 26.5 |
| Devices | iPhone | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Ting-Yu Chang](https://appshunter.io/developer/1884770184) | [Sanjiv Sathiah](https://appshunter.io/developer/6775678094) |

## What reviewers say

### NostEcho

[App page](https://appshunter.io/ios/app/nostecho/id6760512110)

**In-app purchases:** none


### aud

[App page](https://appshunter.io/ios/app/aud-io/id6787083966)

This app combines your local music files with your Apple Music library into a single, beautifully organized interface. It offers advanced playback features and seamless import options from various sources, all while respecting your existing library structure.

**Highlights:** Combines local files and Apple Music, Organized library browsing, Multiple import methods, Supports various audio formats, Advanced playback controls, Offline functionality

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| aud-io Pro | $14.99 | one-time |


## Frequently asked questions

### Is NostEcho free?

NostEcho costs $5.99, with no in-app purchases.

### Is aud free?

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

### Do NostEcho or aud have ads?

Neither NostEcho nor aud shows ads.

### Which is updated more often, NostEcho or aud?

NostEcho ships an update every 6 days, and aud weekly. Most recently, NostEcho was updated on October 2, 2026 and aud on October 8, 2026.

---

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