A monthly SMS plan is really just prepayment with an expiry date. You pay the fee up front, and any messages you don't use are gone at the end of the cycle. Auto top-up gives you the same set-and-forget convenience on prepaid. Your balance refills automatically before you run out, you only ever pay for what you send, and your credits never expire.
Worried that prepaid means more admin than a plan? With auto top-up it's the plan that needs the babysitting.
| Prepaid + Auto Top-Up | Typical Monthly Plan | |
|---|---|---|
| Set and forget | Yes | Yes |
| Monthly fee | None | Every month, used or not |
| Unused messages roll over | Always, no expiry | Usually expire monthly |
| Lock-in contract | Never | Often 12 months |
| Monthly sending cap | None | Common |
| Pay only for what you send | Yes | No |

No more manual top-ups or checking the balance before a big send. Your credits are simply always there.

No monthly fee and no sending cap. Credits never expire, so a top-up you haven't used yet is still yours next month.

Auto top-ups are priced exactly like manual purchases, from 4¢ down to 2¢ per SMS depending on volume. Using it costs nothing extra.

Change your trigger, amount or card any time, add a backup card, and get a receipt for every top-up. Turning it off takes one click.
Choose the balance that sets off a top-up. Pick a one-click preset or set your own, like topping up whenever you drop below 1,000 credits.
Decide how many credits each top-up buys, at the same volume rates as any other purchase. A 10,000 credit top-up is $300 at 3¢ per SMS.
Whenever your balance dips below your trigger, your card tops it up automatically and you get an email receipt. No caps, no expiry, no surprises.
Already with us? Head to the Billing page and turn on auto top-up in under two minutes. New here? Start with 50 free SMS credits and see how it works.