Last Interval
Create, manage, and sync your training workouts to Garmin Connect
Get Started
Sign in with your Google account to start creating workouts and syncing them to your Garmin devices.
Workout Builder
Create structured interval workouts with customizable duration, pace, and target zones
Garmin Integration
Connect to Garmin Connect and upload workouts directly to your compatible devices
Type-Safe API
Built with TypeScript and Flask for reliable, type-safe API interactions
Built With Modern Technologies
Python 3.13
Flask 3.1
Next.js 15
React 19
PostgreSQL
Google OAuth
Garmin API
TypeScript 5.7