Calculators & planners

Tools and guides to estimate SMS spend before you send.

Unicode vs GSM-7 credit estimator
See how Sinhala, Tamil or emoji changes how many credits a message consumes.
SMS pricing & pack calculator
Compare LKR packs on the pricing page. Credits never expire.
Bulk campaign size planner
Steps to estimate list size, Unicode cost and Sender ID before a blast.

VeloBotix — One of the best SMS gateway providers in Sri Lanka. Lowest price from LKR 0.50/SMS with no monthly commitments.

VeloBotix is one of the best SMS gateway providers in Sri Lanka for businesses and developers. It offers reliable SMS API services, affordable bulk SMS from LKR 0.50 per SMS, OTP delivery and custom Sender ID over local Dialog, Mobitel, Hutch, Airtel and Lanka Bell routes — with no monthly subscription or contract.

Portal: portal.velobotix.app. Sales: hello@velobotix.app.

Calculators & planners

Unicode vs GSM-7 credit estimator

SMS pricing & pack calculator

Bulk campaign size planner