Comparison

Rubyist vs Günther

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

Head to head
About

Rubyist

Execute and automate Ruby scripts directly on your iPhone and iPad. This app utilizes the MRuby VM to run code, integrate with Shortcuts and Siri, and offers a robust editor with syntax highlighting and autocomplete.

Highlights
  • Run Ruby code on device
  • Editor with syntax highlighting
  • Code autocomplete
  • Shortcuts app integration
  • Siri command creation
  • Native alerts and inputs
  • HTTP requests
  • Clipboard access
Read full description

Rubyist allows you to run Ruby code on your iPhone and iPad using the MRuby VM. Run code directly in the app or via the Shortcuts app or Siri commands. Features: - Run Ruby code directly on your device - Built-in documentation viewer - Editor with ruby syntax highlighting - Code Autocomplete - Run Ruby directly in Shortcuts - Build your own Siri commands in Ruby. - Display native alerts and inputs using exclusive APIs - Make http requests from your code. - Write and read your clipboard from code

About

Günther

Read full description

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

Rubyist4 screens

Verdict

The call

The clearest difference is device support: Rubyist at 2 against Günther's —. Rubyist also leads on iOS requirement (17.0 vs 26.0). On price and in-app purchases 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. Rubyist sells 3 one-off in-app purchases and Günther sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Scorecard2 real differences · 8 level
Rubyist versus Günther: the parameters behind the verdict, then further details
ParameterRubyistGünther
PriceFreeFree
Rating4.6 (93 ratings) — better—
Positive reviews83.3% of reviews—
Number of ratings93 — better—
Update frequencyEvery 3 weeks—
AdsNo—
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad — better—
Requires iOS17.0 — better26.0
Further details — not scored
Size26 MB50 MB
Age rating4+17+
DeveloperTSUBASA TECHNOLOGIES LIMITED LIABILITY COMPANYEmberbright LLC

In-app purchases

3 purchases

Rubyist

One-time3
  • Small Tip$0.99
  • Medium Tip$4.99
  • Large Tip$9.99
1 purchases

Günther

One-time1
  • Lifetime Unlock$9.99

Questions

Is Rubyist free?
Rubyist is free to download, with in-app purchases available.
Is Günther free?
Günther is free to download, with in-app purchases available.

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