# DAF Delayed Auditory Feedback vs The Speech Jammer

The clearest difference is ads: The Speech Jammer at none against DAF Delayed Auditory Feedback's shown. The Speech Jammer also leads on update cadence (every 2 months vs every 6 months) and iOS requirement (11.0 vs 15.0). On price, in-app purchases and device support 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, The Speech Jammer every 2 months. Both last shipped on September 11, 2026.

## The numbers

| Metric | DAF Delayed Auditory Feedback | The Speech Jammer |
| --- | --- | --- |
| 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 2 months** |
| Monetization | Ad-supported | — |
| Size | 5 MB | 30 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Junichiro Seyama](https://appshunter.io/developer/537815782) | [CENK YILDIRIM](https://appshunter.io/developer/1584484979) |

## 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


### The Speech Jammer

[App page](https://appshunter.io/ios/app/the-speech-jammer/id6443668066)

**Features:** macOS Compatibility

**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 The Speech Jammer free?

The Speech Jammer is free to download, with no in-app purchases.

### Do DAF Delayed Auditory Feedback or The Speech Jammer have ads?

DAF Delayed Auditory Feedback shows ads; The Speech Jammer does not.

### Which is updated more often, DAF Delayed Auditory Feedback or The Speech Jammer?

DAF Delayed Auditory Feedback ships an update every 6 months, and The Speech Jammer every 2 months. Most recently, DAF Delayed Auditory Feedback was updated on September 11, 2026 and The Speech Jammer on September 11, 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.*