Comparison

Dev Tool box vs Günther

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

Günther

Control your development server from your mobile device. Manage dashboards, terminals, GitHub, and AI agents with direct SSH connections. Offers customizable commands, real-time stats, and secure, private access.

Highlights
  • Customizable dashboard with 90+ command templates
  • GitHub issue and PR browsing
  • AI agent control with Claude Code integration
  • Interactive terminal with PTY support
  • Remote file explorer with SFTP upload
  • Secure direct SSH connection
  • Biometric app lock
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Your server's command center, from your pocket. Günther connects your iPad or iPhone to your dev machine over SSH and gives you a full command center — dashboard, terminal, GitHub, and AI agent control. No cloud relay, no middleman, no third-party servers. CUSTOMIZABLE DASHBOARD 90+ command templates across 16 categories: system stats, git, Docker, admin, services, logs, GitHub CLI, network, CLI launchers, Claude Code, tmux, deployment, SSL & cron, databases, CI/CD, and file operations. Add from the gallery, build with the guided "Bash Libs" command builder, or create your own. 9 output layouts (gauge, counter, table, log viewer, and more). Real-time polling for CPU, memory, and GPU. One-tap execution for everything else. GITHUB INTEGRATION Browse issues and PRs from your dashboard. Tap to expand, long-press to preview details — title, body, labels, comments, changed files. Send any issue straight to Claude Code with one tap. GitHub OAuth device flow for direct token setup, or use gh auth already configured on your server. Review and approve pull requests from a dedicated PR Approver card. AI AGENT CONTROL Günther reads Claude Code's output and renders it into a real mobile UI — plans, tool approvals, thinking steps, file diffs. A jobs panel tracks file edits, commands, and subagents in real time. Approve, deny, or session-approve tool calls. MCP tools display with server and tool name badges. Discover and invoke skills from the slash command menu. Choose between Sonnet, Opus, and Haiku models. TERMINAL & FILE EXPLORER Full interactive terminal with PTY support, 256-color output, and arrow keys. Browse remote directories with syntax-highlighted file preview. Upload photos and documents over SFTP. WHAT ELSE • Resume sessions exactly where you left off — even after closing the app • Full-screen reconnect overlay when returning from background • Time-sensitive push notifications that break through Focus modes • GitHub issues and PRs at a glance — send to Claude Code with one tap • Import existing SSH keys or generate new Ed25519 keys in-app • Biometric app lock with Face ID / Touch ID • iCloud sync for settings across devices • Light, Dark, and System themes BUILT FOR SECURITY • Direct SSH from device to server — nothing in between • Post-quantum key exchange (ML-KEM) — quantum-resistant encryption • Biometric app lock with Face ID / Touch ID • Built-in SSH key generation and import (Ed25519, RSA, ECDSA) • Keys stored in iOS encrypted keychain • No analytics. No tracking. No telemetry. BUILT FOR PERFORMANCE Flutter UI. Rust SSH engine with post-quantum cryptography. No JavaScript runtime, no Electron, no web views. Native ARM on both sides of the FFI bridge. REQUIRES Claude Code features require Claude Code installed on your server with an Anthropic API key or Claude Pro/Max subscription. Günther is the remote control — it does not include or replace a Claude Code subscription. GETTING STARTED Add a connection. Authenticate. Pick a project. You're running in under two minutes — Günther walks you through SSH key setup during onboarding. WORKS WITH • Mac (macOS) • Linux servers • Cloud VMs (AWS, GCP, DigitalOcean, etc.) • NVIDIA Jetson • Raspberry Pi Free 3-day trial. One-time purchase to unlock — $9.99 launch price ($14.99 after). No subscription. Günther is an independent project by Emberbright Studio, not affiliated with or endorsed by Anthropic, GitHub, Apple, Docker, or any other third party. Claude Code is a trademark of Anthropic, PBC. GitHub is a trademark of GitHub, Inc. Apple, iPhone, iPad, and App Store are trademarks of Apple Inc. All other trademarks are the property of their respective owners.

Screenshots

Dev Tool box2 screens

Verdict

The call

The clearest difference is in-app purchases: Dev Tool box at none against Günther's 1. Dev Tool box also leads on device support and iOS requirement (18.0 vs 26.0). On price 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. Günther sells 1 one-off in-app purchase. Dev Tool box asks for nothing beyond the download.

Scorecard3 real differences · 6 level
Dev Tool box versus Günther: the parameters behind the verdict, then further details
ParameterDev Tool boxGünther
PriceFreeFree
Rating—4.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 3 weeks—
AdsYes—
In-app purchasesNo — betterYes
Monetization—Free
DevicesiPhone, iPad, Mac — better—
Requires iOS18.0 — better26.0
Further details — not scored
Size4 MB50 MB
Age rating4+17+
DeveloperSeonggon SimEmberbright LLC

In-app purchases

None

Dev Tool box

No in-app purchases

1 purchases

Günther

One-time1
  • Lifetime Unlock$9.99

Questions

Is Dev Tool box free?
Dev Tool box is free to download, with no in-app purchases.
Is Günther free?
Günther is free to download, with in-app purchases available.

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