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

1.8

Rebuilt Canvas with Groups and Alignments, and Free Preview!

October 2, 2026

A rebuilt, faster, more functional, and better looking Canvas. Alignment, Distribution, Groups, Multi-Select, and so much more. Plus, an all new preview!

Atlas

1.7.5

Better Indenting for Paragraphs, Folder Inspector Stats, and Undo/Redo Reliability

September 17, 2026

New support for indented paragraphs and blockquotes, Folder and multi-select Inspector gains combined stats and heading outlines, and OS 27 user interface tweaks to fit in. Undo/redo and pasting reliability also dramatically improved, alongside various bug fixes, and many stability improvements.

Atlas

1.7.2-1.7.4

Templates Reorganization with Improved Dragging and Dropping in Editors, Reveal in Organizer

September 15, 2026

Reorganized Templates in the Organizer, improved drag and drop support in the editors, and several important bug fixes.

Atlas

Contagious Development

Atlas

Fox Issue Tracker

Benchmark﻿iOS

Track your Workouts

Recent Releases

BenchmarkiOS