Alert21 Pricing in 2026
Every plan Alert21 publishes, with the page and date we read it from. Prices we could not find on Alert21's own site are marked "Not published", never guessed.
| Plan | Price | Billing | Limits | Source |
|---|---|---|---|---|
| SMS pay-as-you-go | Not published | Usage-based billing · Volume discounts as sending scale grows · Prepaid balance in Indian Rupees | alert21.in |