[manuscreationis]

Off the cuff, I'd suggest something like #2

Charging per client will probably lead to people getting clever, and simply giving multiple clients the same login, that they themselves own and consider as the cost of the service.

Also, it seems like a per-client pricing directly "punishes" people who work on larger, multi client projects, whereas a flat rate for a tiered product encourages them to make the most of what they've been given.

Just my 2 cents, take it for what it's worth.

[vail130]

That definitely makes sense. Thank you!