# Delay Line — Standalone and AUv3 Delay Unit

> High-quality digital delay effect with smooth parameter interpolation for audio. (iPhone/iPad app by Callback Audio, LLC.)

- Source: https://appshunter.io/ios/app/delay-line/id6776276739 (this page in markdown: same URL + `.md`)
- Developer: [Callback Audio, LLC](https://appshunter.io/developer/1896220942)
- Category: Music
- Price: $1.99
- Rating: 5.00/5 from 2 App Store ratings
- Age rating: 4+
- Requires: iOS 17.0 · 7 MB
- Released: 2026-06-11
- Data updated: 2026-09-06
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/delay-line/id6776276739/reviews.md

## What is Delay Line?

A high-quality digital delay effect with smooth parameter interpolation and feedback control. This delay provides clean, musical echoes perfect for adding depth and space to your audio. The delay uses linear interpolation for smooth delay time changes and includes comprehensive parameter smoothing to eliminate zipper noise during real-time parameter adjustments.

## Key features

- High-quality digital delay
- Smooth parameter interpolation
- Feedback control
- Musical echoes
- Linear interpolation for delay time
- Comprehensive parameter smoothing


## Frequently asked questions about Delay Line

### What is Delay Line?

Delay Line is a standalone and AUv3 digital delay effect designed to add clean, musical echoes to your audio. It features smooth parameter interpolation and comprehensive smoothing to prevent zipper noise.

### What devices does Delay Line support?

Delay Line is available for iPhone and iPad, offering its high-quality delay effect across Apple's mobile platforms.

### How much does Delay Line cost?

Delay Line is a paid application, priced at $1.99. This one-time purchase grants you access to its full suite of delay features.

### Does Delay Line have ads?

No, Delay Line does not contain advertisements. As a paid application, it offers an uninterrupted audio processing experience.

### What makes Delay Line's parameter control unique?

Delay Line utilizes linear interpolation for smooth delay time changes and comprehensive parameter smoothing. This technology eliminates zipper noise during real-time adjustments, ensuring a clean audio output.

### What is the age rating for Delay Line?

Delay Line has an age rating of 4+, making it suitable for a wide range of users interested in audio manipulation.

### When was Delay Line last updated?

Delay Line was last updated on June 11, 2026, with version 1.0. This indicates it is a relatively new application.

### How does Delay Line compare to other delay plugins?

Delay Line offers high-quality digital delay with a focus on smooth parameter interpolation and feedback control, aiming for clean, musical echoes. Its integration as an AUv3 unit also provides flexibility for use within compatible iOS music production apps.

## Version history (last 1 release)

### 1.0 — 2026-06-11

No release notes.

## Apps similar to Delay Line

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Harmony Orbit](https://appshunter.io/ios/app/harmony-orbit/id6749810817) | 5.0 (2) | Free | Music |
| [LuliAria](https://appshunter.io/ios/app/luliaria/id6754223743) | 5.0 (6) | Free | Music |
| [LA Comp](https://appshunter.io/ios/app/la-comp/id6741395806) | 5.0 (4) | $9.99 | Music |
| [LOOPBAR](https://appshunter.io/ios/app/loopbar/id6751549888) | — | $0.99 | Music |
| [Multi-Tap Delay AUv3 Plugin](https://appshunter.io/ios/app/multi-tap-delay-auv3-plugin/id1444438070) | — | $4.99 | Music |
| [VAPolyMT](https://appshunter.io/ios/app/vapolymt/id6743886961) | 5.0 (4) | $14.99 | Music |

## More apps by Callback Audio, LLC

- [Raw Byte Audio Machine](https://appshunter.io/ios/app/raw-byte-audio-machine/id6766166760)
- [Multimode Ladder Filter](https://appshunter.io/ios/app/multimode-ladder-filter/id6769653852)
- [Bit Crusher](https://appshunter.io/ios/app/bit-crusher/id6770401698)
- [Wavefolder](https://appshunter.io/ios/app/wavefolder/id6772079543)
- [Callback Freeverb](https://appshunter.io/ios/app/callback-freeverb/id6775060495)

All apps by Callback Audio, LLC: https://appshunter.io/developer/1896220942

## Related topics

[auido delay](https://appshunter.io/ios/topics/auido-delay)

---

*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 2026-09-06.*