UDevice vs Blissum
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
UDevice
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.
- 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
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Make device debugging, network diagnostics, and security research more efficient. The app includes a rich set of professional tools covering network packet capture, request rewriting, SSH, local terminal, Python 3, file management, cookie editing, log analysis, JSON formatting, regular expressions, Ping, DNS lookup, Traceroute, port scanning, LAN scanning, and more. You can also view real-time device status and key system information, including CPU, system, network, memory, display, browser environment, and other device data, helping you quickly understand the current state of your device. Whether for development debugging, testing and troubleshooting, security research, or daily device management, everything can be done in one app.
Blissum
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Tools: - Line Prefix/Suffix Edit: Tired of editing line prefixes or suffixes one by one? Replace the recurring prefix or suffix in every line with what you prefer. Also add either a prefix or a suffix to each line. It works with whitespace with no problem. - Advanced Name Generator: Add a touch of creativity to name generation. Control the alternation between consonants and vowels and fine-tune the probability of each letter. The result? Unique names tailored to your preference. - Text Case Conversion: Where traditional tools see 'spaces,' we see opportunities. Convert seamlessly between camelCase, PascalCase, snake_case, and even Kebab-Case. Tailored for the modern developer, our converter recognizes patterns beyond mere space separators. - Unlock the full potential of server-side Swift development with the HTML to Swift converter. Effortlessly transform HTML code into type-safe Swift code, ready for use with domain-specific language libraries. Your server-side Swift application is protected from runtime errors and invalid HTML through DSL libraries. Ease of use: - Chain Transformations: Process your text, copy the output, and push it into another tool for further transformations—all through intuitive keyboard commands. No more copy-pasting—just pure efficiency. - Flexible Layout Control: Switch between horizontal and vertical layouts, or maximize your output view. Tailor your workspace to your preference, all without reaching for the mouse. Dive into a truly hands-on experience designed for those who think, code, and create at the speed of thought. Experience Blissum's keyboard-driven magic today.
Screenshots
Verdict
The clearest difference is price: Blissum at Free against UDevice's $4.99. UDevice's advantage is chart position (#53 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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | UDevice | Blissum |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | 4.4 (36 ratings) — better | — |
| Positive reviews | 78.1% of reviews | — |
| Number of ratings | 36 — better | — |
| Update frequency | Every 3 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Best chart rank | #53 — better | — |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Mac |
| Requires iOS | 16.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 159 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | Gansu Zhenxian Network Technology Co., Ltd. | Actondon |
In-app purchases
UDevice
No in-app purchases
Blissum
No in-app purchases









