Built on top of 1,200+ exercises.
Import the exercises and videos you already use, add more in bulk from YouTube or your own recordings, and let the AI fill the gaps.


Trusted by 1000+ coaches and teams
Create exercises in seconds
Type an exercise name. Autofill writes the tags, muscle groups, equipment, coaching notes and tracking fields, using the tags your library already has.
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Common questions
What can I import?
A CSV, XLSX or XLS export from a spreadsheet or another platform, up to 5,000 rows per file. Relay detects the columns automatically, and you confirm the ones it could not place before anything is created.
Can I import my exercise videos with the spreadsheet?
Yes. Drop the video files together with the spreadsheet and each file named like an exercise is linked to it automatically. Rows that already carry a YouTube link keep it.
Can I upload my own video files, or does it have to be a YouTube link?
Either. Drop your video files straight into the importer and Relay creates an exercise per file, named from the filename, so a folder of clips becomes a library in one pass. Rows that already carry a YouTube or Vimeo link keep it instead.
What does AI Autofill fill in?
Tags, primary and secondary muscle groups, equipment, coaching notes and tracking fields, from the exercise name alone. You can set your own instructions once, for example which tags to use and how to write notes, and Autofill follows them for every exercise.
Can I use my own tags?
Yes. Tags are free text and colour coded, so your library uses your categories. Apply or change tags on one exercise or on a whole selection at once, and Autofill suggests from the tags you already use.
What are tracking fields?
The columns an exercise shows in the workout builder and the athlete app: reps, load, RPE, RIR, tempo, rest, distance, duration, calories, heart rate, speed, force, power, height and effort. Set them per exercise, and the builder shows only what matters for that movement.
Do I have to build the library from scratch?
No. Relay comes with a public exercise library you can use straight away, and you can add your own tags, notes and video to any public exercise. Your own exercises sit alongside them.























