Fitloop - Bodyweight fitness workouts for everyone

Google Docs - Create a new document and edit with others at the same time -- from your computer, phone or tablet. Get stuff done with or without an internet connection. Use Docs to edit Word files. Free from Google.

Fitbod - Personalized Strength-Training powered by Machine Learning

Airborn - Create and edit documents online without sacrificing your privacy

Hevy - Simple workout logging, insightful analytics, and a growing community of gym athletes.

Bit.ai - Bit is a smart real-time document collaboration platform for teams to create interactive documents, manage digital content and track document insights.