The client has history
You are not evaluating one isolated day. The next check can focus on trend and change over time.
For trainers and nutritionists
A photo of a result sheet is not enough. The useful part is that the client has a portal, can return to the result and share it with you for follow-up work.

The client has their measurements, history and result context in one place. That is much more useful than a one-off screenshot.
Why it helps
You are not evaluating one isolated day. The next check can focus on trend and change over time.
The client does not need to rewrite values into chat or find old result photos. Sharing is built in.
The result is easier to connect with training, weight loss, gaining or regular progress checks.
In practice
The point is not only the measurement itself, but what can happen with the result afterwards.

The client can share the result directly from the portal, without rewriting values or sending an unreadable screenshot.

The client chooses what to share. You then work with the real result instead of incomplete values copied through chat.
How it can work
Instead of guessing from weight or photos, the client gets a clearer first body composition baseline.
The client can return to it between consultations and share it with you when needed.
A follow-up measurement shows whether fat, muscle and the main trend are really moving.
Value
The client does not get only a one-time printout. The result stays in their account and can be compared under similar conditions later.
Contact
A short message is enough. You do not need to fill in a long brief.

The biggest value appears when you work with change over time and want something better than a one-off printout.
Why here
If you guide clients over time and need a reliable baseline, portal history and sharing are exactly where the service becomes useful.