# UDevice vs Blissum

The clearest difference is price: Blissum at Free against UDevice's $4.99. UDevice's advantage is chart position (#57 vs unranked) and update cadence (every 3 weeks vs every 2 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Blissum is free to download; UDevice costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UDevice ships an update every 3 weeks, Blissum every 2 months. The most recent releases landed on September 22, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | UDevice | Blissum |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[4.4 (36 ratings)](https://appshunter.io/ios/app/udevice-dev-assistant/id1608053878/reviews)** | — |
| Number of ratings | **36** | — |
| Positive reviews | 78.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free | — |
| Best chart rank | **#57** | — |
| Size | 159 MB | 27 MB |
| Requires iOS | **16.0** | 17.6 |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Gansu Zhenxian Network Technology Co., Ltd.](https://appshunter.io/developer/1616881226) | [Actondon](https://appshunter.io/developer/1705474078) |

## What reviewers say

### UDevice

[App page](https://appshunter.io/ios/app/udevice-dev-assistant/id1608053878)

**Currently charting:** #57 Top Paid · Developer Tools (US App Store)

This app offers a comprehensive suite of developer and testing tools. It includes network utilities like HTTP(s) capture and DNS parsing, alongside system information and file management capabilities. Ideal for development, testing, and device management.

**Highlights:** HTTP(s) Capture/Rewrite, SSH and Terminal access, Python3 interpreter, Cookie editing, Network utilities (Ping, DNS, Traceroute, Port Scan), File manager, Device fingerprinting and system info

**Features:** macOS Compatibility, Safari Extension, Apple Watch app, Vision Pro support

**In-app purchases:** none


### Blissum

[App page](https://appshunter.io/ios/app/blissum/id6464085978)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is UDevice free?

UDevice costs $4.99, with no in-app purchases.

### Is Blissum free?

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

### Do UDevice or Blissum have ads?

Neither UDevice nor Blissum shows ads.

### Which is updated more often, UDevice or Blissum?

UDevice ships an update every 3 weeks, and Blissum every 2 months. Most recently, UDevice was updated on September 22, 2026 and Blissum on September 9, 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.*