# DAF Delayed Auditory Feedback vs 超优智航

The clearest difference is ads: 超优智航 at none against DAF Delayed Auditory Feedback's shown. DAF Delayed Auditory Feedback's advantage is update cadence (every 6 months vs every 12 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

DAF Delayed Auditory Feedback ships an update every 6 months, 超优智航 every 12 months. The most recent releases landed on September 11, 2026 and August 16, 2026 respectively.

## The numbers

| Metric | DAF Delayed Auditory Feedback | 超优智航 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (6 ratings)](https://appshunter.io/ios/app/daf-delayed-auditory-feedback/id606979390/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 20.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 6 months** | Every 12 months |
| Monetization | Ad-supported | — |
| Size | 5 MB | 81 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Junichiro Seyama](https://appshunter.io/developer/537815782) | [Le Wei Technology(HK) Limited](https://appshunter.io/developer/492007961) |

## What reviewers say

### DAF Delayed Auditory Feedback

[App page](https://appshunter.io/ios/app/daf-delayed-auditory-feedback/id606979390)

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.

**Highlights:** Delayed auditory feedback simulation, Voice input via microphone, Audio output through headphones, Psychological experiment tool, Adjustable delay effects, Speech disruption testing

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

**In-app purchases:** none


### 超优智航

[App page](https://appshunter.io/ios/app/id1076259831)

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

**In-app purchases:** none


## Frequently asked questions

### Is DAF Delayed Auditory Feedback free?

DAF Delayed Auditory Feedback is free to download, with no in-app purchases.

### Is 超优智航 free?

超优智航 is free to download, with no in-app purchases.

### Do DAF Delayed Auditory Feedback or 超优智航 have ads?

DAF Delayed Auditory Feedback shows ads; 超优智航 does not.

### Which is updated more often, DAF Delayed Auditory Feedback or 超优智航?

DAF Delayed Auditory Feedback ships an update every 6 months, and 超优智航 every 12 months. Most recently, DAF Delayed Auditory Feedback was updated on September 11, 2026 and 超优智航 on August 16, 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.*