Contagious Development

Building Tools That Inspire.

Atlas

Atlas offers a powerful writing and idea collection environment that brings structure to your work without getting in the way. Combining project organization, versatile canvases, and markdown support in one beautifully native app, Atlas is designed to foster creativity and creation.

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Available for macOS, iPad, and iPhone

A simple project manager for simple developers. Designed as a way to escape expensive and complicated management systems, Fox Issue Tracker strives to be an effective tool at keeping projects in order.

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Available for macOS, iPad, and iPhone

Track your Workouts

Benchmark is a fitness companion to support your workout journey. Log and automatically set rest times during sessions, create routines for frequent workouts, and dive into your workout history to witness your achievements and stay motivated as you stack weight and add time to your exercises.

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Recent Releases

1.6

Focus Mode, Typewriter Scrolling, and Customized Fonts

August 1, 2026

Several new writing features for the markdown editing and overall experience: Focus mode, typewriter scrolling during typing, and customizable editor fonts.

Atlas

4.1

Nested Tags, Editor Improvements, and Web Links

July 28, 2026

Nested tags, a unified tag menu across iOS and macOS, and a major Markdown Editor upgrade featuring Smart Paste, table copying, and a steadier editing experience.

Fox Issue Tracker

1.5.1

Continuous Document Browsing and Web Document Tuneups

July 26, 2026

Continuous document browsing to both iOS and macOS, a refined Web Document experience, and smarter tagging tools — along with Canvas refinements and key bug fixes.

Atlas

Contagious Development

Atlas

Fox Issue Tracker

Benchmark﻿iOS

Track your Workouts

Recent Releases

BenchmarkiOS