# Speech Jammer vs ColdTrace

The clearest difference is ads: Speech Jammer at none against ColdTrace's shown. Speech Jammer also leads on rating (5.0 vs 4.8). ColdTrace's advantage is ratings volume (6.3K vs 1) and chart position (#144 vs unranked). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. Speech Jammer sells 1 one-off in-app purchase and ColdTrace sells 8 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Speech Jammer holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: ColdTrace has 6.3K ratings behind it against 1, so its average is the more settled of the two.

Speech Jammer ships an update every 5 days, ColdTrace every 4 days. The most recent releases landed on October 10, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Speech Jammer | ColdTrace |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/speech-jammer-mic-prank/id6760173960/reviews)** | [4.8 (6.3K ratings)](https://appshunter.io/ios/app/coldtrace-cold-case-mystery/id6762513021/reviews) |
| Number of ratings | 1 | **6.3K** |
| Positive reviews | — | 36.7% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 days | **Every 4 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | — | **#144** |
| Size | 14 MB | 184 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [Xiaohan Chen](https://appshunter.io/developer/1578383628) | [Saclic Studio](https://appshunter.io/developer/1764090240) |

## What reviewers say

### Speech Jammer

[App page](https://appshunter.io/ios/app/speech-jammer-mic-prank/id6760173960)

This app uses a delayed audio feedback trick to make it nearly impossible for users to speak normally, creating hilarious situations. It's perfect for parties and gatherings, offering adjustable delay settings and fun voice effects in its pro version.

**Highlights:** Delayed audio feedback for speech disruption, Adjustable delay from 50ms to 300ms, Real-time audio visualizer, Works with wired and Bluetooth headphones, Voice effects (Chipmunk, Robot, etc.), Auto-save recordings

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Speech Jammer Pro | $4.99 | one-time |


### ColdTrace

[App page](https://appshunter.io/ios/app/coldtrace-cold-case-mystery/id6762513021)

**Currently charting:** #144 Top Free · Entertainment, #173 Top Grossing · Entertainment (US App Store)

Step into a simulated phone to solve a fictional cold case. Explore messages, photos, and notes to piece together a layered narrative and uncover the truth behind a mysterious event. Your choices and pace shape the investigation.

**Highlights:** Simulated phone interface exploration, Uncover layered narrative, Piece together timeline, Investigate messages, photos, notes, Multiple investigation threads, Fictional true crime experience

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cold Trace | $6.99 | per 7 days |
| ColdTrace Yearly | $9.99 | per year |
| ColdTrace Weekly | $9.99 | per 7 days |
| ColdTrace Premium | $19.99 | per year |
| ColdTrace | $19.99 | per year |
| ColdTrace Yearly | $34.99 | per year |
| Yearly Trial | $34.99 | per year |
| TrueCrime Yearly 2 | $34.99 | per year |


## Frequently asked questions

### Is Speech Jammer free?

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

### Is ColdTrace free?

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

### Which has better reviews, Speech Jammer or ColdTrace?

Speech Jammer is rated higher. Speech Jammer averages 5.0 out of 5 from 1 ratings, while ColdTrace averages 4.8 from 6.3K ratings.

### Do Speech Jammer or ColdTrace have ads?

ColdTrace shows ads; Speech Jammer does not.

### Which is updated more often, Speech Jammer or ColdTrace?

Speech Jammer ships an update every 5 days, and ColdTrace every 4 days. Most recently, Speech Jammer was updated on October 10, 2026 and ColdTrace on October 27, 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.*