Signalstream

Quality Apps for Apple Platforms

Professional developer tools and utilities for iOS, iPadOS, and macOS

Apps

Building tools that help developers, sysadmins, and power users work more efficiently

Chmod Toolkit

Chmod Toolkit

Linux Permissions Made Easy

Available Now

Professional chmod calculator and security scanner for DevOps engineers, system administrators, and developers.

  • Interactive chmod calculator
  • Security scanner with 24 check categories
  • CSV export for audit reports
  • Universal Purchase (iPhone, iPad, Mac)
Learn More →
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Future App

Coming Soon

In Development

More professional tools for developers and system administrators are on the way. Stay tuned!

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Future App

Coming Soon

Planned

Building the next generation of productivity and developer tools for Apple platforms.

About Signalstream

Signalstream creates professional-grade tools for developers, system administrators, and power users who work with Apple platforms.

Every app is built with attention to detail, focusing on privacy, performance, and Mac-native experiences through Catalyst.

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Privacy First

On-device processing. No data collection. Your information stays yours.

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Performance

Fast, efficient, and responsive. Built with SwiftUI and native frameworks.

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Design

Beautiful, intuitive interfaces that follow Apple's Human Interface Guidelines.

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Mac-Native

True Mac Catalyst support with keyboard shortcuts, context menus, and desktop features.

Built by Robert Frederique

Independent developer focused on creating quality tools for professionals. Based on years of experience in DevOps, system administration, and software development.