Gainly

Gainly is a mobile fitness app for training, nutrition, progress tracking, and much more.

The app brings the most important features from products such as Hevy and Cal AI into one unified experience, so training, nutrition, and progress do not have to be split across multiple apps.

Its built-in AI agent provides a ChatGPT-like experience directly inside the app. Specific engineering work has gone into replicating and mirroring ChatGPT's UX behavior, making the interaction feel familiar and natural.

Unlike a regular chat, the agent has context about the user's own fitness data. It can take actions inside the app, create training programs, and provide informed answers based on the individual's training, nutrition, and progress.