# TD-21 Tape Delay — AUv3 AudioUnit v3

> iPad AUv3 tape delay audio effect plugin with filtered feedback and reverb. (iPhone/iPad app by Paul Betowski.)

- Source: https://appshunter.io/ios/app/td-21-tape-delay/id1560526985 (this page in markdown: same URL + `.md`)
- Developer: [Paul Betowski](https://appshunter.io/developer/538476580)
- Category: Music, Music
- Price: $2.99
- Rating: 4.50/5 from 2 App Store ratings · 3 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 58 MB
- Languages: English
- Released: 2021-04-11
- Data updated: 2026-06-10
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/td-21-tape-delay/id1560526985/reviews.md

## What is TD?

This is an AudioUnit v3 plugin only. To be used in a 3rd party host app.

Tape style delay AUv3 effect plugin / app extension. 

Features:
– Non-linear feedback path
– Filtered feedback (low–pass, high–pass) Controllable 
– Basic Reverb

## Key features

- Tape-style delay effect
- Non-linear feedback path
- Filtered feedback (low-pass, high-pass)
- Basic reverb

## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/td-21-tape-delay/id1560526985/reviews.md

### 4/5 — Sync?

*2022-02-15*

I like it, it sounds really nice. Using it in Loopy Pro. Can you add an option to sync the delay time to the host? Thanks!

### 3/5 — Not bad

*2021-05-09*

Nothing new or exceptional here..sounds ok ....there are two wet/dry controls which is bit confusing  🙂

**Developer response:** Mix for reverb and mix for master.

### 5/5 — Unique delay

*2021-04-11*

Straightforward good sounding delay/reverb. Thanks Paul!

## Frequently asked questions about TD

### What is TD-21 Tape Delay?

TD-21 Tape Delay is an AudioUnit v3 plugin designed exclusively for iPad. It functions as an audio effect that emulates a tape-style delay.

### How do I use TD-21 Tape Delay?

This plugin must be used within a third-party host application that supports AudioUnit v3 extensions on your iPad.

### What kind of feedback does TD-21 Tape Delay offer?

It features a non-linear feedback path, allowing for more dynamic and interesting delay repetitions. The feedback can also be filtered using low-pass and high-pass controls.

### Does TD-21 Tape Delay include reverb?

Yes, TD-21 Tape Delay includes basic reverb functionality to add ambiance to your audio.

### What devices does TD-21 Tape Delay support?

TD-21 Tape Delay is exclusively supported on iPads, as indicated by its supported devices list.

### How much does TD-21 Tape Delay cost?

TD-21 Tape Delay is a paid application, priced at $2.99. It does not feature in-app purchases.

### Is TD-21 Tape Delay updated frequently?

The app was last updated on April 12, 2021, with version 1.0.1. Further update frequency is not specified.

### Does TD-21 Tape Delay have ads?

No, TD-21 Tape Delay does not contain advertisements. It is a paid application with no ads.

## Version history (last 2 releases)

### 1.0.1 — 2021-04-12

Bug fix – Dry signal was being amplified

### 1.0 — 2021-04-11

No release notes.

## Apps similar to TD

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [SlowMoFX](https://appshunter.io/ios/app/slowmofx/id1536139632) | 3.7 (13) | $9.99 | Music |
| [Tape Pro](https://appshunter.io/ios/app/tape-pro/id1527986817) | 4.8 (14) | $7.99 | Music |
| [DigiKeys AUv3 Sequencer Plugin](https://appshunter.io/ios/app/digikeys-auv3-sequencer-plugin/id1497678986) | 4.3 (18) | $9.99 | Music |
| [TalkWorks](https://appshunter.io/ios/app/talkworks/id1549626166) | 4.0 (6) | $9.99 | Music |
| [Beef](https://appshunter.io/ios/app/beef/id1559567363) | 4.6 (21) | $7.99 | Music |
| [Smoov AUv3](https://appshunter.io/ios/app/smoov-auv3/id1545474672) | 4.9 (7) | $4.99 | Music |

## More apps by Paul Betowski

- [DUBSTEP / Loops / Keyboard / Drums](https://appshunter.io/ios/app/dubstep-loops-keyboard-drums/id557267838)
- [E Theremin – Electro Theremin](https://appshunter.io/ios/app/e-theremin-electro-theremin/id591471950)
- [SynthDrum Pads](https://appshunter.io/ios/app/synthdrum-pads/id657577819)
- [DNB / Loops / Synth](https://appshunter.io/ios/app/dnb-loops-synth/id670737604)
- [E–Theremin MKII](https://appshunter.io/ios/app/etheremin-mkii/id905407070)
- [WubSynth](https://appshunter.io/ios/app/wubsynth/id1074423582)

All apps by Paul Betowski: https://appshunter.io/developer/538476580

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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 2026-06-10.*