Custom plan builder

Choose SMS volume and duration.

1. Screen structure

Pricing tiers on the left separate 1–30 days from 31 days or more, with message-volume ranges inside each. A calculation form sits on the right.

2. Controls and actions

Quantity and duration hints show minimums of ten and one; the purchase action is subdued before input.

3. User journey and value

Placing rules beside the form makes the available combinations easier to understand.