Fitbod - Personalized Strength-Training powered by Machine Learning
MySQL - The world's most popular open source database
JEFIT - Jefit is the #1 popular gym workout app for Android and iOS. Jefit allows you to manage your training routine and keep track of your workout progress easily.
PostgreSQL - PostgreSQL is a powerful, open source object-relational database system.
Hevy - Simple workout logging, insightful analytics, and a growing community of gym athletes.
SQLite - SQLite Home Page