# u vs ByteSniffer

The clearest difference is in-app purchases: u at none against ByteSniffer's 4. u also leads on update cadence (every 2 days vs every 8 days) and iOS requirement (13.0 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. ByteSniffer sells 4 in-app purchases, starting at $1.99 per month. u asks for nothing beyond the download.

u ships an update every 2 days, ByteSniffer every 8 days. The most recent releases landed on September 22, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | u | ByteSniffer |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 8 days |
| Monetization | — | Freemium |
| Size | 39 MB | 22 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [u-blox Malmo AB](https://appshunter.io/developer/575523398) | [存龙 霍](https://appshunter.io/developer/1442030835) |

## What reviewers say

### u

[App page](https://appshunter.io/ios/app/u-connectxplorer/id6766648417)

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

**In-app purchases:** none


### ByteSniffer

[App page](https://appshunter.io/ios/app/bytesniffer/id6768570500)

This tool allows developers to capture, inspect, and modify network traffic on their mobile devices. It enables debugging, API testing, and troubleshooting by providing features like request rewriting, session history, and scripting.

**Highlights:** HTTP capture and session history, Request and response inspection, Request and response rewrite tools, JavaScript scripting support, HTTPS MITM debugging, API debugging and testing

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Continuous monthly subscription | $1.99 | per month |
| Continuous seasonal subscription | $3.99 | per 3 months |
| Continuous annual subscription | $12.99 | per year |
| Permanent Pember | $2.99 | one-time |


## Frequently asked questions

### Is u free?

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

### Is ByteSniffer free?

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

### Do u or ByteSniffer have ads?

Neither u nor ByteSniffer shows ads.

### Which is updated more often, u or ByteSniffer?

u ships an update every 2 days, and ByteSniffer every 8 days. Most recently, u was updated on September 22, 2026 and ByteSniffer on September 26, 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.*