Freedom251 › Transactional SMS Software
Alert21
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| SMS pay-as-you-go | Usage-based billing · Volume discounts as sending scale grows · Prepaid balance in Indian Rupees | On request |
As alert21.in lists them, read 24 Sept 2026. The maker's own page has the final word.
Facts from Alert21's own pages
- Headquarters
- Greater Noida, Uttar Pradesh, India · alert21.in, 4 Oct 2026
Where Alert21 stands on Freedom251
- Transactional SMS Software#56 of 76