This app uses delayed auditory feedback to make speaking difficult by playing your voice back through headphones with a slight delay. It's a tool for psychological experiments, allowing users to test the effects of DAF on their own speech.

250+ iOS apps curated and reviewed
Out of 250+ daf delayed auditory feedback apps on iOS, 18 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | 2.3★ (6) | Yes | No | Oct 2026 | ||
| 2 | Free | 4.3★ (34) | No | No | May 2026 | ||
| 3 | $5.99 | 4.5★ (97) | No | No | Nov 2026 | ||
| 4 | Free | 3.1★ (614) | Yes | No | Oct 2026 | ||
| 5 | Free | — | No | No | Aug 2026 | ||
| 6 | $1.99 | 4.8★ (5) | No | No | Nov 2026 | ||
| 7 | Free | 4.9★ (2.1K) | No | No | Nov 2026 | ||
| 8 | Free | — | No | Yes | Sep 2026 |

This app uses delayed auditory feedback to make speaking difficult by playing your voice back through headphones with a slight delay. It's a tool for psychological experiments, allowing users to test the effects of DAF on their own speech.

This application utilizes Delayed Auditory Feedback to assist individuals who stutter in achieving more fluent speech. By listening to their voice with a slight delay and pitch alteration through a headset, users can experience a 'choral effect' known to reduce stuttering.






This app uses delayed auditory feedback to help individuals who stutter or have Parkinson's speak more fluently. By hearing your voice with a slight delay, it naturally slows your speech rate, improving clarity and smoothness. It's designed for personal use and speech therapy sessions.