Comparison

Dev Tool box vs Umbra

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Dev Tool box

Features
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DevToolbox is an essential collection of developer utilities designed to streamline your coding workflow. Whether you're debugging APIs, encoding data, or formatting JSON, DevToolbox provides the tools you need in a clean, native interface. KEY FEATURES: • JSON Formatter & Validator Format, validate, and beautify JSON with syntax highlighting. Tree view visualization for better structure understanding. Built-in search functionality to find text within large JSON files. • URL Encoder/Decoder Quickly encode or decode URLs for API testing and web development. RFC 3986 compliant encoding for maximum compatibility. • Base64 Encoder/Decoder Convert text to Base64 and vice versa. Supports URL-safe Base64 and auto-padding. Perfect for encoding credentials, tokens, and data URIs. • JWT Decoder Decode and inspect JSON Web Tokens without external services. View header, payload, and signature details instantly. Automatically handles "Bearer " prefix. • Text Case Converter Transform text between various cases: camelCase, PascalCase, snake_case, kebab-case, SCREAMING_SNAKE_CASE, dot.case, UPPERCASE, lowercase, and Title Case. Smart parsing for any input format. • Hash Generator Generate secure hashes using MD5, SHA-1, SHA-256, and SHA-512 algorithms. Essential for checksum verification and security testing. • Unix Timestamp Converter Convert between Unix timestamps and human-readable dates. Supports seconds and milliseconds. Multiple output formats including ISO 8601, UTC, and local time. • Number Base Converter Convert between Decimal, Binary, Octal, and Hexadecimal. Auto-detects input format with 0x, 0b, 0o prefix support. • String Escape/Unescape Escape special characters for JSON strings or unescape encoded text. Handles \n, \t, \", \\ and more. • Color Converter Convert HEX colors to RGB and HSL with live preview. Generates ready-to-use SwiftUI, UIKit, and CSS code snippets. WHY DEVTOOLBOX? • Native Performance: Built with SwiftUI for blazing-fast performance • Privacy First: All processing happens locally on your device • Universal App: Works seamlessly on iPhone, iPad, and Mac • Dark Mode Support: Easy on the eyes during late-night coding sessions • No Ads, No Tracking: Just pure functionality • Offline Ready: No internet connection required Perfect for mobile developers, web developers, API developers, QA engineers, security professionals, and students learning to code. DevToolbox is your pocket-sized development companion. Stop switching between websites and online tools - get everything you need in one native app.

About

Umbra

Features
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UMBRA — Know Your Network. Secure Your Home. Umbra is the modern network scanner built for clarity, security, and peace of mind. Discover every device on your Wi-Fi. Test your connection. Identify vulnerabilities. Understand your network like a pro — no technical experience required. Whether you’re troubleshooting slow Wi-Fi, checking who’s connected, or securing your smart home, Umbra gives you the tools to stay in control. DISCOVER WHAT’S ON YOUR NETWORK Get a clear, real-time view of every device on your Wi-Fi: • Phones, laptops, TVs • Consoles & tablets • Routers, boosters, access points • Smart home devices (cameras, bulbs, speakers, etc.) See device details, names, vendor info, and more — all in one simple dashboard. RUN POWERFUL DIAGNOSTICS Umbra includes pro-level tools made simple: • Ping • Traceroute • DNS resolver • mDNS discovery • Device latency & reachability tests • Local vulnerability insights (UPnP, open ports, weak configurations, etc.) Built for beginners. Trusted by power users. CHECK FOR RISKS & VULNERABILITIES Smart homes have never been more connected — or more exposed. Umbra highlights potential risks before they become issues: • Unknown devices • Insecure configurations • Weak endpoints • Open services you didn’t expect • Devices that behave unusually Stay safer with one glance. SEE YOUR NETWORK LIKE A GRAPH Visualise how every device connects to your router. Understand which devices are active, idle, or offline. Track your network’s health over time. Clean, intuitive, and designed for clarity. FAST. PRIVATE. LOCAL. Umbra runs entirely on-device. Your network data never leaves your phone. We do not: - Collect IP/MAC addresses from your scans - Store vulnerability results - Track your Wi-Fi networks - Sell or share your data Umbra respects your privacy — full stop. FREE TO USE — WITH OPTIONAL PRO TOOLS Start scanning instantly. No account required. Upgrade to Umbra Pro for: • Advanced diagnostics • Unlimited vulnerability checks • Faster scans • Priority updates • Future pro tools Terms of Use: https://www.cormeum.co.uk/terms-of-use Privacy Policy: https://www.cormeum.co.uk/privacy-policy

Screenshots

Dev Tool box2 screens
Umbra4 screens

Verdict

The call

The clearest difference is in-app purchases: Dev Tool box at none against Umbra's 2. Umbra's advantage is ads (none vs shown) and iOS requirement (15.1 vs 18.0). On price, update cadence and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Umbra sells 2 in-app purchases, starting at $2.99 per month. Dev Tool box asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 weeks. Both last shipped on October 4, 2026.

Scorecard3 real differences · 3 level
Dev Tool box versus Umbra: the parameters behind the verdict, then further details
ParameterDev Tool boxUmbra
PriceFreeFree
Update frequencyEvery 3 weeksEvery 3 weeks
AdsYesNo — better
In-app purchasesNo — betterYes
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS18.015.1 — better
Further details — not scored
Size4 MB31 MB
Age rating4+4+
DeveloperSeonggon SimCor Meum

In-app purchases

None

Dev Tool box

No in-app purchases

2 purchases

Umbra

Subscriptions2
  • Umbra Premium Monthly$2.991 Month
  • Umbra Premium Yearly$29.991 Year

Questions

Is Dev Tool box free?
Dev Tool box is free to download, with no in-app purchases.
Is Umbra free?
Umbra is free to download, with in-app purchases available.
Do Dev Tool box or Umbra have ads?
Dev Tool box shows ads; Umbra does not.
Which is updated more often, Dev Tool box or Umbra?
Dev Tool box ships an update every 3 weeks, and Umbra every 3 weeks. Most recently, Dev Tool box was updated on October 4, 2026 and Umbra on October 4, 2026.

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