Aahat — the soft sound of footsteps approaching — lets you hear the end of your prepaid mobile, DTH or data validity well before it arrives. Quiet, calm, on time. You recharge with your operator, as always.
A faint aahat: a week of validity left.
Illustrative example
First reminder, a week out.
Second reminder, three days left.
Last reminder, ends tomorrow.
Free. Name and email only.