Just Run is a free fitness app designed to help beginners start running and achieve their fitness goals. The app offers two workout plans: Zero to 5K and 5K to 10K, with the promise of helping users reach their desired distance in just a matter of weeks.

The Zero to 5K plan is a 9-week program that includes three 30-minute workouts per week. The app is designed to encourage users to stick to the workout plan by setting target dates for each workout, calculated based on their progress and optimal exercise days. Just Run also offers multiple trainer voices to choose from, which tell users exactly when to run and walk.

Other features of the app include a lock screen notification that allows users to check their progress without unlocking their phone, compatibility with music, audiobook and podcast apps, and no ads. The app is also very lightweight (less than 3MB), which means it won't take up much space on the user's device.