Each client has a weekly goal of workouts and cardio, right now there's nothing holding them a-countable to that except for me checking in on them each week. And with the client load I have, that is very difficult. It would be nice to set goals like the ones below.
3 workouts/week
3 cardio activity/week 20 mins each or 40 minutes total.

And in trainerize fashion, give them a congrats message when they've hit their goal, and when they've been consistent, or tell them how many weeks in a row they've reached their goal!

So I have been using another to the masses popular app (Hemsworths) as some market research.

The programs themselves are delivered neatly, what I like is in a week you have say 5 workouts (one of them is marked as a 'bonus' or 'optional') and then you do what you can in the week. Each workout closes the ring of that week a little more. After each workout it prompts a selfie with the 'congrats' message.

WHY do I like it and think clients would to?
- It provides a nice Weekly overview so if a client misses a day they feel they can still catch up / make it a great week.
- It still clearly provides the direction of what workouts should be completed each week.
- Clients get to send their sweaty selfie if they want declaring how hard they worked (and the option to share on social with friends = free promotion of the service)

This would give the client the freedom to schedule training days based on their own schedule but would still allow the trainer to see if they hit all their workouts by the end if the week. I.E. if there are 4 training days on a program I just want to see on my summary page that they hit all 4 days.

you can set goals based on Number of days your exercise and/or number of sessions you complete within a week. this should also have a set time fram on it so the goal expires on a set date/number of week/number of months. trainer and clients are notified when it expires and whether it was achieved or not. you can then set future goals based on current result

The ability to add workout days rather than actual workouts as clients attend different classes and my group fitness instruction

Ability to see a weekly total for number of workouts per week for each client.

It would be great to be able to set a client to do say any 5 workouts a week (or even better which 5 workouts), rather than be limited to setting a specific workout on a specific day.