Scalable & Reliable
Australian SMS gateway
Smart SMS API delivers premium, scalable sms api messaging solutions with direct telco connections, lightning-fast delivery, and developer-friendly integration. Simplify communication with unmatched reliability and 24/7 local support.
Enterprise SMS Gateway Built for Developers
Smart SMS API bridges the gap between developers and telecommunications with seamless integration, scalable APIs, and enterprise-grade reliability. Deliver millions of messages effortlessly with proven technology.
Read the Docs
Explore quick-start guides, code snippets, SDKs, and more in our comprehensive resource library to kickstart your build for Facebook Messenger with Messaging

Competitive pricing,
with unmatched delivery
All base UI elements are made using Nested Symbols and shared styles that are logically connected with one another.
Communicate reliability
Experience a 99.95% uptime SLA made possible with automated failover and zero maintenance windows.
Operate at scale
Extend the same app you write once to new markets with configurable features for location and compliance
Many channels
Use the same platform you know for voice, SMS, chat, two-factor authentication, and more.
No Shenanigans
Get to market faster with pay-as-you-go pricing, free support, and the freedom to scale up or down without contracts.
SMS - MMS pricing table
Credits | SMS price (AUD) | MMS price (AUD) | SMS rate per unit (AUD) | MMS rate per unit (AUD) |
---|---|---|---|---|
10 | $0.77 | $0.20 | $0.08 | $0.02 |
250 | $19.00 | $5.00 | $0.08 | $0.02 |
1K | $75.00 | $19.00 | $0.08 | $0.02 |
5K | $365.00 | $95.00 | $0.07 | $0.02 |
20K | $1380.00 | $360.00 | $0.07 | $0.02 |
100K | $6300.00 | $1800.00 | $0.06 | $0.02 |
What our customers say about us
Integrating Cellcast’s SMS marketing platform into our customer outreach strategy has transformed our conversion rates at...

Monica Limanto
CEO of Petsy
Integrating Cellcast’s SMS marketing platform into our customer outreach strategy has transformed our conversion rates at...

Monica Limanto
CEO of Petsy
The #1 Rated SMS & MMS gateway in Australia
Cellcast stands as Australia’s highest-rated business messaging platform, trusted by thousands of companies nationwide for their critical customer communications. Our market-leading position is built on enterprise-grade carrier connections, exceptional delivery rates, and award-winning customer support.

Processing Millions of messages daily
4.9 Star
Average customer satisfaction score
98%
Customer retention rate
Serving
Star-ups to ASX-listed
Companies
Industry-best uptime of
99.99%
Australia’s Most Connected
business messaging network

Smart SMS API delivers unparalleled reach across Australia’s telecommunications landscape through direct partnerships with every major carrier. As a Tier 1 partner of Telstra, Vodafone(TPG) and Optus, we provide businesses with premium messaging routes that ensure optimal delivery rates and enterprise-grade reliability.
Our data
speaks for itself.
90x
ROI by Vibes SMS customers
<1%
Campaign
opt-out rate
25%
Lower SMS subscriber churn
97%
SMS audience retention
9x
SMS broadcast click-through rate
Frequently asked questions
How does the pricing work?
As a tier-one SMS and MMS gateway service, we offer tiered pricing based on your subscription tier.
We offer the most competitive unit price in the market. Just give us the challenge.
How much does it cost to send a message?
Depending on the plan to choose will determine the unit price per message.
For SMS messages, you are limited to 160 characters per message and 1000 characters for MMS messages. If you send sms with 200 characters, this will count as two parts, and you will be charged for two messages.
Can I cancel my plan?
You can cancel your plan at any time, And your account will be closed at the end of your billing cycle.
If you have opted for an annual subscription you will need to wait for this period.
Is my data safe, will it be used for any other purpose?
Cellcast ensures that your data is securely stored on its AWS platform located in Sydney, which is accessible only to you. Our systems are secured to the gold standard, making them the benchmark for all of our happy customers. To learn more about our privacy policy, you can visit our website.
Can I send messages that display a business name or numbers?
Yes, you can. Using your business name or your own mobile number can be a great way to strengthen your brand identity.
Why is Smart SMS API so popular?
Our pricing is unbeatable, and if you happen to find an SMS or MMS price that is comparable, just inform us and we will beat it.
Smart SMS api provides premium tier one messaging services for enterprise systems.
We deliver premium, tier-one messaging services that empower developers, startups, and enterprises with scalable, reliable, and affordable SMS and MMS gateway solutions, bridging the gap between businesses and telecommunications providers.
Are there any membership fee's?
Absolutely not! There are no upfront or ongoing fees to use the Cellcast platform for SMS or MMS messaging. You only pay for the credits you purchase to send messages, and there are no hidden charges or fees.
Can I purchase my own Virtual Number?
Yes, you can. You have the option to purchase virtual mobile numbers (VN) for an annual fee of $168 or a monthly fee of $18. Additionally, you can also purchase a short code (SC). Please contact our support team for further assistance with connecting your purchased VN or SC.