Just an idea;
An option to select automatic monthly billing.
Charge for example €0.50 per device per month automatically.
If a unimus server holds 100 devices have a monthly bill of €47.5 (0.50 x 95) instead of €370.50 per year.
Making Unimus an extra €200 per year.
This helps bring customers on-board who don’t wish to invest a large chunk up front for 100’s of devices and also helps the smaller networks with tighter monthly budgets.
Plus it would be ace to have automatic billing (direct debit, PayPal etc..)