ClickSend SMS API
8.1#3 in transactional sms softwareFrom $3.46 a monthAndroidiOSWebAPI
VisitClickSend SMS API vs QuickAuth Transactional SMS API
QuickAuth Transactional SMS API
5.8#54 in transactional sms softwareAndroidiOSWebAPI
VisitWhat both publish
| Fact | ClickSend SMS API | QuickAuth Transactional SMS API |
|---|---|---|
| Pricing limits | The pricing page says additional carrier fees apply, and messages exceeding 160 characters are charged as multiple message parts. | The company does not publish a fixed price list; quotes depend on monthly volume, channel mix, template categories, and fallback patterns. |
| Product | ClickSend provides business SMS for sending and receiving texts, through its browser service or API. | QuickAuth provides one API for authentication, WhatsApp, SMS, RCS, and email messaging. |
ClickSend SMS API plans
- Enterprise$0.01, paid once
- Scale$0.01, paid once
- Growth$0.02, paid once
- Boost$0.03, paid once
- Dedicated Number$3.46 a month
QuickAuth Transactional SMS API plans
- Custom volume pricingPriced on request
Pick ClickSend SMS API if…
It suits businesses that need API-based or browser-based SMS for campaigns, operational updates, or one-time-password verification. Teams can connect recurring workflows through listed integrations or developer SDKs.
Pick QuickAuth Transactional SMS API if…
QuickAuth suits teams implementing OTP authentication, WhatsApp campaigns, or multi-channel messaging through APIs and SDKs. It fits businesses needing webhooks, delivery status, fallback routing, and fraud controls.