Delivery problems and drift problems are not the same problem
A delivery problem sounds like this: the client cannot find this week's session, the substitution is unclear, or the video came back and you have not reviewed it. Those are real, they cost you time every day, and a coach-first delivery platform exists to make them small.
A drift problem sounds different. The client has the program, understands it, and has done two sessions out of twelve in three weeks. Nothing in your delivery tool is broken. What is missing is a weekly question they actually answer and a number that shows the slide before month two ends.
Why a separate weekly form still gets answered
Reply rate is the whole game. A check-in that lives behind a login gets answered by the clients who are already doing well, which is exactly the wrong sample. The people you need to hear from are the ones avoiding the app because opening it means facing the sessions they skipped.
A short link by text or email, four to eight questions, ninety seconds, no login, changes who replies. It also lets you ask the awkward questions plainly: what got in the way this week, and what would make next week realistic. Answers to those two are worth more than another set of logged reps.
Running the pair together through a normal week
A workable rhythm for a coach with 30 to 40 clients: programs go out in your delivery tool on Sunday, check-ins fire Friday afternoon or Monday morning depending on the client, reminders handle themselves, and you sit down for fifteen minutes with the ranked list before your first session of the week.
The flagged names get a real reply, a shortened week, or a call. The rest get one line of acknowledgment. That split is the point: your attention goes where the retention risk is, and nobody gets ignored, which is a harder promise to keep when you are reading forty message threads by hand.