Module payment criteria yearly or onetime

Hi I was interested to buy Double Entery module for one of my client but it says $69 per year. I wanted to know that do I have to pay every year for renewal or this is one time.

<p>Hi I was interested to buy Double Entery module for one of my client but it says $69 per year. I wanted to know that do I have to pay every year for renewal or this is one time.</p>

There is an FAQ under the price of each app, check it out.

<p>There is an FAQ under the price of each app, check it out.</p>