ClickSend is the best default for Australian startups: AUD billing, an Australian entity, self-service signup and low per-message pricing. Cellcast and Kudosity are strong local alternatives, MessageMedia suits enterprise compliance needs, and Twilio is worth its premium only if you send internationally too.
Editorial judgement last reviewedSending SMS to Australian mobiles is a specific problem with specific constraints, and the global default is usually the wrong answer to it.
Three things make Australia different. Per-message prices to Australian mobiles are high by world standards, so the gap between a local aggregator and a global platform is large. Billing currency matters, a USD invoice means you absorb an exchange spread on every message on top of the rate. And the ACMA Sender ID Register is tightening how branded alphanumeric sender IDs work, which affects every OTP and transactional alert you send.
Our Australian SMS comparison records price per message in AUD at 1k, 10k and 100k tiers, sender ID status, carrier interconnect versus aggregation, and whether you can get an API key and send a test message without talking to a salesperson.
We ranked for an Australian startup: local recipients, small volume growing, and no procurement department.
Price per message in AUD, at realistic volume tiers rather than the headline rate. The ordering changes between 1,000 and 100,000 messages a month.
Self-service signup. Whether you can get credentials and send a test message today. In Australian telco this is a genuine differentiator and it's our killer field on the hub.
Australian entity and AUD billing, which determines your tax invoice, your exchange exposure and who you call when something breaks.
Sender ID support, including whether the provider handles ACMA registration on your behalf.
Route quality, direct interconnect with Telstra, Optus and TPG versus aggregated international routing, which explains most of the delivery-rate difference between providers with similar prices.
An Australian company, based in Perth, selling SMS in AUD with local support hours and an Australian tax invoice. Per-message pricing to Australian mobiles sits well below the global platforms, and the gap compounds fast once you're sending tens of thousands.
The API is plain REST with JSON and basic auth, not elegant, entirely adequate, and integrable in an afternoon. Crucially you can sign up, get an API key and send a test message without a sales call, which is unusual in this market and worth more than it sounds when you're trying to ship.
Also covers MMS, voice and post, if you ever need them.
Not the deepest platform: if you need sophisticated routing, messaging services or a global footprint, you'll outgrow it. For an Australian startup sending to Australian numbers, that's the right trade.
An Australian provider with aggressive pricing to local mobiles and a straightforward API. Where it earns its place is the volume tiers, the per-message rate at higher tiers is among the most competitive available locally.
Australian entity, AUD billing, local support, and help with sender ID registration as routine business rather than an exception.
Smaller than the better-known names, which means less written about it and a smaller support team. For a startup where per-message cost is a visible line item, worth quoting alongside ClickSend
before committing.
Formerly Burst SMS, and one of the longest-running Australian SMS providers. The platform is stronger than the pure-API vendors on two-way messaging, conversation handling, contact lists and campaign tooling, useful if SMS is a channel your business team touches, not just an API your code calls.
Australian entity, AUD billing, local support and a well-trodden sender ID process.
Pricing sits slightly above the cheapest local options, which is what the extra product costs. If you only ever send one-way transactional messages, you're paying for capability you won't use.
A large, established Australian provider with the enterprise apparatus: SLAs, compliance documentation, account management and the procurement-friendly terms that regulated customers require. Direct carrier relationships give it strong delivery performance.
Pick it when someone in your organisation needs to see an SLA and a compliance pack before signing, or when you're selling into government, health or financial services and your own customers ask where messages are processed.
Expect a more sales-led motion than the self-service options, and pricing that reflects an enterprise vendor. For a two-person startup that's friction you don't need; for a company with a compliance function it's exactly the point.
The best API and documentation in telecoms, the widest global reach, and a platform extending into voice, video, verification and WhatsApp. If you send to many countries, one vendor and one integration is worth real money.
For Australian traffic specifically it's expensive: per-message rates well above local aggregators, USD billing with the exchange spread on top, and an Australian presence that's a regional deployment of a US company rather than a local entity.
The common arrangement is a hybrid, Australian traffic through a local aggregator, everything else through Twilio
, both behind one internal send function. Slightly more code, considerably less money.
Australia has been tightening how alphanumeric sender IDs are handled. The ACMA Sender ID Register exists to stop scammers spoofing bank and government sender names, and the practical effect for legitimate senders is that a branded sender ID increasingly requires registration rather than just setting a string in an API call.
For a startup sending OTPs or transactional alerts, this matters more than the per-message price. An unregistered sender ID that gets filtered is a login flow that silently fails, and you'll discover it through support tickets rather than error rates.
Verify current obligations with ACMA directly before you build, the regime has been changing and vendor documentation lags it. What to ask any provider: do you support registered alphanumeric sender IDs for Australian traffic, do you handle registration on my behalf, how long does it take, and what happens to my messages while registration is pending.
Local aggregators generally treat this as routine because every customer needs it. A global platform treats it as one country's regulatory exception among a hundred, and the documentation reflects that.
The other Australian obligations: opt-out handling on marketing messages under the Spam Act, and, for regulated industries, evidence about where message content is stored and processed.
Two things in Australian SMS pricing catch people out, and neither appears in the headline rate.
Concatenation. A message over 160 GSM-7 characters is billed as multiple parts. Include a single character outside the GSM-7 set, an emoji, a curly apostrophe pasted from a document, an em dash from a designer's copy, and the whole message switches to Unicode encoding, dropping the limit to 70 characters per part. A 150-character message that was one part becomes three. This single detail is the most common cause of a bill three times the estimate, and it's usually introduced by a copy change nobody thought was technical.
Route quality. Some providers offer a cheap international route and a more expensive local one. The cheap route goes through more intermediaries, which means lower delivery rates, slower delivery receipts and a higher chance of the sender ID being rewritten en route. If a quote looks unusually low, ask whether it's direct interconnect with Telstra, Optus and TPG, or aggregated.
Also check: whether delivery receipts and inbound messages are billed, whether there's a minimum top-up or monthly commitment, and whether unused prepaid credit expires. Our hub records all of it per provider.
Not strictly, but if your recipients are Australian you'll usually pay less, bill in AUD, get local support hours and get better help with sender ID registration. The price gap versus a global platform is large enough to matter at any real volume.
Alphanumeric sender IDs are typically free to use but may require registration; dedicated virtual numbers carry a monthly fee. Check both, plus whether the provider handles ACMA registration for you or leaves it as your task.
Put every send behind one internal function taking a recipient, a message and a template identifier. Providers change for price, carrier issues or compliance reasons, and that single abstraction turns a migration into a configuration change.
