# SynthDet Viewer vs Stream HTTP Sniffer

The clearest difference is in-app purchases: SynthDet Viewer at none against Stream HTTP Sniffer's 4. SynthDet Viewer also leads on review sentiment (25% vs 11%) and update cadence (every 2 days vs every 5 days). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Stream HTTP Sniffer sells 4 one-off in-app purchases. SynthDet Viewer asks for nothing beyond the download.

SynthDet Viewer ships an update every 2 days, Stream HTTP Sniffer every 5 days. The most recent releases landed on October 8, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | SynthDet Viewer | Stream HTTP Sniffer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (2 ratings)](https://appshunter.io/ios/app/stream-http-sniffer/id6483685232/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | **25.0% of reviews** | 10.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 5 days |
| Monetization | **Free** | Free with in-app purchases |
| Size | 31 MB | 43 MB |
| Requires iOS | 13.4 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Unity Technologies ApS](https://appshunter.io/developer/305967445) | [Xiamen Yidong Network Technology Company Limited](https://appshunter.io/developer/1476811365) |

## What reviewers say

### SynthDet Viewer

[App page](https://appshunter.io/ios/app/synthdet-viewer/id1528361585)

Visualize object detection model results in augmented reality. This tool allows for real-world data analysis and COCO exporting for the SynthDet project.

**Highlights:** Augmented reality visualization, Object detection results display, COCO exporting, Real-world data analysis, SynthDet project integration

**In-app purchases:** none


### Stream HTTP Sniffer

[App page](https://appshunter.io/ios/app/stream-http-sniffer/id6483685232)

This tool captures and analyzes HTTP/HTTPS traffic directly on your device for network debugging. It allows developers and QA teams to inspect requests and responses, filter traffic, rewrite messages, and even block specific requests. HTTPS capture requires CA certificate configuration.

**Highlights:** HTTP/HTTPS packet capture, Request/response history, Domain filtering, Request rewriting, Request blocking, JavaScript scripting, Keyword search

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 个月 VIP | $2.99 | one-time |
| 3 个月 VIP | $4.99 | one-time |
| 1 年 VIP 会员 | $9.99 | one-time |
| 终身VIP | $12.99 | one-time |


## Frequently asked questions

### Is SynthDet Viewer free?

SynthDet Viewer is free to download, with no in-app purchases.

### Is Stream HTTP Sniffer free?

Stream HTTP Sniffer is free to download, with in-app purchases available.

### Do SynthDet Viewer or Stream HTTP Sniffer have ads?

Neither SynthDet Viewer nor Stream HTTP Sniffer shows ads.

### Which is updated more often, SynthDet Viewer or Stream HTTP Sniffer?

SynthDet Viewer ships an update every 2 days, and Stream HTTP Sniffer every 5 days. Most recently, SynthDet Viewer was updated on October 8, 2026 and Stream HTTP Sniffer on October 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.*