Weekly client check-in messages for trainers: AI assistant

Weekly check-ins keep clients going, but writing 20 individual messages takes a chunk of the weekend. At 6 minutes each, that's 120 minutes, 2 hours a week, about 8.6 hours a month (x 4.3).

Each week, jot a line per client, such as 'did 3 sessions, said work was busy, goal is 5k in May'. Use first names or initials only and no health details. Paste the notes into ChatGPT, Claude or Gemini and ask for a short, friendly check-in in your voice for each. Read each one, correct anything wrong, add the personal touch and send it yourself. The messages encourage; they don't give medical or nutrition advice. Anything about pain, injury or a medical condition you answer yourself or refer to the client's GP.

A personal trainer in Sheffield checks in with 20 clients every week by message, about 6 minutes each.

About 5.7 hours a month saved (80 minutes a week x 4.3), worth about £200 at £35 an hour. Free plans can do this; a paid plan is about £15 to £20 a month for one person.

1. 1Keep a one-line note per client during the week: sessions done, one detail about their life, current goal.
2. 2Paste the notes (first names or initials only, no health details) into ChatGPT, Claude or Gemini and ask for a short check-in per client in your tone.
3. 3Read each message, fix errors and add something only you would know.
4. 4Send them yourself from your usual messaging app.
5. 5Save the prompt that works best so each week takes minutes.

• Never paste client health information, photos or full names into a consumer assistant.
• Don't let the assistant answer questions about pain, injury, medication or diet for a medical condition. That is for you and the client's GP.
• Generic messages feel generic. Always add something personal.
• Don't send automated messages unchecked; a wrong detail loses trust.