# DAF Delayed Auditory Feedback vs Speech Jammer

The clearest difference is rating: Speech Jammer at 4.7 against DAF Delayed Auditory Feedback's 2.3. Speech Jammer also leads on review sentiment (50% vs 20%) and update cadence (every 3 weeks vs every 6 months). DAF Delayed Auditory Feedback's advantage is in-app purchases (none vs 1). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Speech Jammer sells 1 in-app purchase, starting at $19.00 per year. DAF Delayed Auditory Feedback asks for nothing beyond the download.

Speech Jammer holds the better App Store score, 4.7 against 2.3. That said, the two scores are not equally well evidenced: Speech Jammer has 55 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 20% of DAF Delayed Auditory Feedback's written reviews are positive against 50% of Speech Jammer's.

DAF Delayed Auditory Feedback ships an update every 6 months, Speech Jammer every 3 weeks. The most recent releases landed on September 11, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | DAF Delayed Auditory Feedback | Speech Jammer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (6 ratings)](https://appshunter.io/ios/app/daf-delayed-auditory-feedback/id606979390/reviews) | **[4.7 (55 ratings)](https://appshunter.io/ios/app/speech-jammer-voice-delay-app/id6747054266/reviews)** |
| Number of ratings | 6 | **55** |
| Positive reviews | 20.0% of reviews | **50.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 6 months | **Every 3 weeks** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 5 MB | 25 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Junichiro Seyama](https://appshunter.io/developer/537815782) | [ryo mishima](https://appshunter.io/developer/1635107987) |

## 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


### Speech Jammer

[App page](https://appshunter.io/ios/app/speech-jammer-voice-delay-app/id6747054266)

This app creates an instant audio feedback loop by delaying your voice, making it difficult to speak fluently. It's a unique and hilarious experience perfect for pranks, brain challenges, and entertainment on the go.

**Highlights:** Instant audio feedback loop, Adjustable delay time (50-500ms), Control output volume, Fine-tune input sensitivity, Toggle headphone/speaker output, Hilarious pranks and challenges

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Plan (Yearly) | $19.00 | per year |


## Frequently asked questions

### Is DAF Delayed Auditory Feedback free?

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

### Is Speech Jammer free?

Speech Jammer is free to download, with in-app purchases available.

### Which has better reviews, DAF Delayed Auditory Feedback or Speech Jammer?

Speech Jammer is rated higher. DAF Delayed Auditory Feedback averages 2.3 out of 5 from 6 ratings, while Speech Jammer averages 4.7 from 55 ratings.

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

Both DAF Delayed Auditory Feedback and Speech Jammer show ads.

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

DAF Delayed Auditory Feedback ships an update every 6 months, and Speech Jammer every 3 weeks. Most recently, DAF Delayed Auditory Feedback was updated on September 11, 2026 and Speech Jammer on September 15, 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.*