How often should I check in with an online client?

Once a week is the most common rhythm: often enough to adjust, far enough apart for changes to show. In contest prep, many coaches move to more frequent check-ins in the final weeks.

Should I ask clients for progress photos?

Yes. Photos are often the clearest measure of progress, as long as they are taken under the same conditions (poses, lighting, place). Explain why you ask for them and who can see them: that is part of earning trust.

How many online clients can one coach handle?

It depends on how much time each client takes you per week (check-in, messages, adjustments). Measure it with your first clients: that number sets your capacity, and it should guide your price.

What should a weekly check-in form include?

Average bodyweight, measurements, photos, sleep, stress, hunger, energy, sessions completed, diet adherence and a free-text box for how the week felt. Keep the same questions every week so the answers can be compared.

Guides › Coaching clients online

How to coach clients online as a fitness coach

By Jérémy Altero · updated 31 October 2026 · 7 min read

Coaching a client online means giving them a clear plan each week (training, nutrition, goals), collecting what they actually did, and adjusting. Good online coaching rests on four things: a thorough onboarding questionnaire, a programme they can follow session by session, a weekly check-in done the same way every time, and clear rules for communication. Everything else is tooling to save you time.

Start with a thorough onboarding questionnaire

Your first exchange sets the quality of everything that follows. Online, you never watch your client move. Anything you do not ask at the start, you will find out too late.

Their goal, in concrete terms and with a date if possible (a show, an event, a target weight)
Their training history: how long, how often, which lifts and exercises
Injuries, niggles and medical history that matter for training
How much time they really have, and what equipment their gym has
Their eating habits and constraints (work hours, budget, preferences)
Starting measurements: bodyweight, waist, and front, side and back photos

A programme they can follow on their own

An online programme has to work on a phone, in the gym, with no one there to explain it. For each exercise: sets, reps, the load or effort you are after (for example reps in reserve), rest, and a coaching cue where needed.

Ask your client to log what they actually did, set by set. That is what lets you adjust loads the following week, and spot a plateau or a niggle before it becomes a problem.

Nutrition: aim for adherence, not perfection

Set calorie and macro targets that fit the goal, then turn them into meals your client will actually eat. Give them swaps: one missing food should not derail a whole day.

What counts is what your client eats over months, not over one perfect week. A plan followed most of the time for three months beats a perfect plan dropped after ten days.

The weekly check-in, always under the same conditions

The check-in is the heart of online coaching. To compare one week with the next, fix the day and keep the conditions identical.

Bodyweight taken in the morning, before food, and read as a weekly average rather than day by day
Measurements at the same points, with the same tape
Photos in the same poses, same lighting, same spot
Sleep, stress, hunger and energy
Sessions completed against sessions planned, and how closely they followed the diet
How the client feels, in their own words

Reply quickly, within clear boundaries

A remote client needs to know when they will hear back. Set a response time (for example within 24 or 48 hours for a check-in) and one channel, rather than messages scattered across several apps.

Your check-in reply should be short: what is going well, what changes for the coming week, and one priority. A voice note or a short video often builds more trust than a long block of text.

The numbers to watch

A handful of numbers tells you whether the coaching is working, as long as you look at them every week.

The bodyweight trend over several weeks, not one morning’s reading
Strength on the main lifts
Consistency: sessions done against sessions planned
Real adherence to the diet
Warning signs: worsening sleep, pain, dropping motivation, check-ins that arrive late

Which tools should you use?

Many coaches start with a spreadsheet, PDFs and WhatsApp. It works with a few clients, but information soon gets scattered: the programme in one file, the diet in another, check-ins buried in chats.

A coaching app keeps everything in one place and shows you what the client actually did. Choose one based on your clients (language, phone), what the price includes (nutrition, check-ins, messaging) and how easily you can bring in the programmes you already use.

With ALTERO

ALTERO brings these four things together: session-by-session programmes, a diet with food swaps and real tracking, a weekly check-in summarised for you, and replies by text, voice note or video. Free for up to 2 athletes, then €29 a month for up to 10 (ALTERO bills in euros).

See check-ins in ALTERO