One other thing, clients can see their training plan plus one program at a time. They need to switch subscriptions to see a different program. They always have their personal training plan visible.

The recent addition of programs was a much awaited and needed feature. Well done!

However, I find that it's usefulness is limited when I can't make individual tweaks to clients who are subscribed to the program, or have multiple programs.

Three situations this is useful in:
1. Small group training. Let's say I have one client who can do pull-ups but one who needs to do rows. I need to be able to change this individually between clients while still having them subscribed to a program.

2. A client 1 on 1 who is also doing group training. I want to be able to add whole workouts just to this kind of client.

3. A studio gym where clients can take several classes. When a client is taking a class, they can choose it from their list of subscribed programs. When they take a different class the next day, they can switch subscriptions.

Implementation: this could get messy, so here's how I see it implemented. Clients have a training plan and a list of subscribed programs to choose from. When they look at their training plan, subscribed workouts and measurements etc are included in addition to training plan workouts and measurements on the calendar. When I subscribe a client to a program, they get it and all changes to it as it is now. However, when I go edit or add a workout, that workout is moved to their training plan. If the program is unsubscribed from, they still have their training plan with individualized workouts.