Australian SMS API providers compared Pricing Compared

- The headline per-message rate is the smallest of three costs. - Hidden cost one: segmentation, where a non-GSM character more than doubles the effective rate. - Hidden cost two: the dedicated virtual number. - Two-way messaging needs one; an alphanumeric sender cannot reply. - Number rental runs typically five to fifteen dollars per number per month. - It sometimes carries a setup fee and is almost never in the per-message quote. - Hidden cost three: the shape of the commitment. - Prepaid credit (ClickSend, SMS Broadcast, SMSGlobal, Cellcast, Kudosity) is pleasant until expiry terms surface. - Or until the good rate requires buying 100,000 messages upfront. - Postpaid and contract models give better unit economics but commit spend before you know volume. - For an unlaunched product, prepay at a worse rate; walking away is worth more than two cents. - Market-specific trap: "from" pricing only holds on domestic traffic, domestic account, registered sender. - Test with the real content, sender ID and recipient mix before committing. - International and roaming numbers bill at a different rate, with no dashboard warning.

Providers
13
Fields compared
6
Source confidence
22%
Last verified
2026-07-20 (2mo ago)
Re-verified
every 30 days
13 tools · verified 2mo ago
SMS Broadcast logoSMS BroadcastThe cheapest credible Australian bulk SMS API, with a deliberately minimal interface.66.7

Pricing

Price /SMS @ 1k (/SMS)
A$0.038/SMS
Price /SMS @ 10k (/SMS)
A$0.032/SMS
Price /SMS @ 100k (/SMS)
A$0.024/SMS
Dedicated number (/mo)
·
Min top-up
·
Billing model
prepay-self-serve
SMSGlobal logoSMSGlobalMelbourne-based provider offering both REST and a direct SMPP bind for high throughput.59.5

Pricing

Price /SMS @ 1k (/SMS)
A$0.05/SMS
Price /SMS @ 10k (/SMS)
A$0.042/SMS
Price /SMS @ 100k (/SMS)
A$0.03/SMS
Dedicated number (/mo)
·
Min top-up
·
Billing model
prepay-self-serve
Cellcast logoCellcastAustralian-owned SMS provider competing mainly on published per-message price.58.3

Pricing

Price /SMS @ 1k (/SMS)
A$0.055/SMS
Price /SMS @ 10k (/SMS)
A$0.042/SMS
Price /SMS @ 100k (/SMS)
A$0.03/SMS
Dedicated number (/mo)
·
Min top-up
·
Billing model
prepay-self-serve
Kudosity logoKudosityBurst SMS rebuilt as a customer-engagement platform, with the original API still underneath.57.0

Pricing

Price /SMS @ 1k (/SMS)
A$0.055/SMS
Price /SMS @ 10k (/SMS)
A$0.045/SMS
Price /SMS @ 100k (/SMS)
A$0.032/SMS
Dedicated number (/mo)
·
Min top-up
·
Billing model
prepay-self-serve
ClickSend logoClickSendPerth-based multichannel API with a public rate table and no sales gate.47.3

Pricing

Price /SMS @ 1k (/SMS)
A$0.079/SMS
Price /SMS @ 10k (/SMS)
A$0.055/SMS
Price /SMS @ 100k (/SMS)
A$0.035/SMS
Dedicated number (/mo)
A$8/mo
Min top-up
A$20
Billing model
prepay-self-serve
AWS End User Messaging logoAWS End User MessagingSMS as an AWS primitive: no vendor relationship, but registration is a support ticket.43.2

Pricing

Price /SMS @ 1k (/SMS)
A$0.07/SMS
Price /SMS @ 10k (/SMS)
A$0.07/SMS
Price /SMS @ 100k (/SMS)
A$0.07/SMS
Dedicated number (/mo)
·
Min top-up
–
Billing model
postpaid-self-serve
Sinch logoSinchGlobal tier-one aggregator that owns MessageMedia and sells Australia through both brands.42.5

Pricing

Price /SMS @ 1k (/SMS)
–
Price /SMS @ 10k (/SMS)
·
Price /SMS @ 100k (/SMS)
·
Dedicated number (/mo)
·
Min top-up
·
Billing model
prepay-then-invoice
Esendex AU logoEsendex AUCommify's Australian business messaging arm, sold through account management.36.8

Pricing

Price /SMS @ 1k (/SMS)
–
Price /SMS @ 10k (/SMS)
·
Price /SMS @ 100k (/SMS)
·
Dedicated number (/mo)
·
Min top-up
·
Billing model
contract-required
MessageMedia logoMessageMediaLong-established Australian A2P provider, now inside Sinch, sold through a sales team.36.8

Pricing

Price /SMS @ 1k (/SMS)
–
Price /SMS @ 10k (/SMS)
·
Price /SMS @ 100k (/SMS)
·
Dedicated number (/mo)
·
Min top-up
–
Billing model
contract-required
Telstra Messaging API logoTelstra Messaging APIThe only provider on this list that owns the Australian network your message lands on.36.8

Pricing

Price /SMS @ 1k (/SMS)
–
Price /SMS @ 10k (/SMS)
·
Price /SMS @ 100k (/SMS)
·
Dedicated number (/mo)
·
Min top-up
·
Billing model
contract-required
Bird logoBirdMessageBird rebuilt as a CRM-first platform; SMS is now a channel inside it.34.4

Pricing

Price /SMS @ 1k (/SMS)
A$0.075/SMS
Price /SMS @ 10k (/SMS)
·
Price /SMS @ 100k (/SMS)
·
Dedicated number (/mo)
·
Min top-up
·
Billing model
contract-required
Vonage logoVonageEricsson-owned CPaaS with clean self-serve access and no Australian entity story.32.4

Pricing

Price /SMS @ 1k (/SMS)
A$0.08/SMS
Price /SMS @ 10k (/SMS)
A$0.08/SMS
Price /SMS @ 100k (/SMS)
A$0.075/SMS
Dedicated number (/mo)
A$5/mo
Min top-up
·
Billing model
prepay-self-serve
Twilio logoTwilioThe default global messaging API, with the best docs and Australia's least competitive rates.29.9

Pricing

Price /SMS @ 1k (/SMS)
A$0.08/SMS
Price /SMS @ 10k (/SMS)
A$0.08/SMS
Price /SMS @ 100k (/SMS)
A$0.075/SMS
Dedicated number (/mo)
A$6/mo
Min top-up
A$30
Billing model
prepay-self-serve
yespartialnounknown
Sources shown beside each value · Learn how sourcing works
measured vendor-claimed community inferredExpand any row for the source, verification date, and caveat behind every cell.

Is the cheapest option the right one?

Price is one group of 6 fields out of 26. Everything else, features, limits, portability, how well any of it works for agents, is on the full australian sms api providers compared comparison.

Where the money actually goes

  • The headline per-message rate is the smallest of three costs.
  • Hidden cost one: segmentation, where a non-GSM character more than doubles the effective rate.
  • Hidden cost two: the dedicated virtual number.
  • Two-way messaging needs one; an alphanumeric sender cannot reply.
  • Number rental runs typically five to fifteen dollars per number per month.
  • It sometimes carries a setup fee and is almost never in the per-message quote.
  • Hidden cost three: the shape of the commitment.
  • Prepaid credit (ClickSendClickSend logo, SMS BroadcastSMS Broadcast logo, SMSGlobalSMSGlobal logo, CellcastCellcast logo, KudosityKudosity logo) is pleasant until expiry terms surface.
  • Or until the good rate requires buying 100,000 messages upfront.
  • Postpaid and contract models give better unit economics but commit spend before you know volume.
  • For an unlaunched product, prepay at a worse rate; walking away is worth more than two cents.
  • Market-specific trap: "from" pricing only holds on domestic traffic, domestic account, registered sender.
  • Test with the real content, sender ID and recipient mix before committing.
  • International and roaming numbers bill at a different rate, with no dashboard warning.

Migration and lock-in

  • SMS is the least locked-in category in this set; exploit that.
  • The core operation is a POST with destination, body and sender, plus a status webhook.
  • Wrap that in a two-method interface on day one.
  • Switching providers then becomes a config change, not a project.
  • The genuine switching costs are elsewhere.
  • A dedicated virtual number is portable in principle, painful in practice.
  • Porting between aggregators takes weeks and both parties must cooperate.
  • The opt-out list lives in the provider's suppression store unless mirrored locally.
  • Re-messaging someone who opted out is a compliance incident, not an inconvenience.
  • Export the opt-out list on a schedule.
  • Delivery-receipt history is almost never exportable in bulk.
  • Land those events in your own store as they arrive.
  • The one thing hard to replicate is reputation on a sender ID.
  • A sender pushing clean traffic for two years earns favourable carrier-side filtering.
  • A new provider starts that clock again.
  • Plan an overlap period with both providers live and traffic shifted gradually.
  • Avoid a single cutover release that discovers the problem in production.

How is this pricing data collected?

  • Prices are per outbound SMS segment to an AU mobile, in AUD.
  • Three monthly volumes: 1,000, 10,000 and 100,000 messages.
  • Where a provider publishes a public tier table, the figure is that list rate.
  • Where a provider quotes per account, the cell is null, not a guess.
  • MessageMediaMessageMedia logo, Telstra, SinchSinch logo and Esendex all quote per account.
  • TwilioTwilio logo and AWS publish a flat per-destination rate with no volume tiering.
  • Their three tiers are near-identical; discounts exist but require sales.
  • A segment is 160 GSM-7 characters or 70 UCS-2 characters.
  • A curly apostrophe, em dash or emoji forces UCS-2 for the whole message.
  • That roughly doubles your bill on anything over 70 characters.
  • Few vendors state this on the pricing page.
  • Killer field "self-serve API key": can you go cold-start to sent message, no human?
  • "Yes" means signup to sent message with no manual approval step.
  • "Partial" means credentials are self-serve but production is gated by a manual step.
  • Gating examples: a sender ID ticket, account activation, a trial locked to verified numbers.
  • "No" means a salesperson is in the critical path.
  • ACMA caveat: the SMS Sender ID Register regime changed recently and is in flux.
  • Every ACMA Sender ID cell is deliberately left unknown, not guessed.
  • Vendor pages lag the regulator by months; several are out of date.
  • This field is pending verification against ACMA; do not use it for compliance.

Pricing questions

Does it matter whether a provider has direct carrier interconnect?

  • It matters for reliability more than for price.
  • Direct interconnect with Telstra, Optus or TPG means fewer intermediaries rerouting traffic.
  • That shows up as steadier delivery latency and more trustworthy receipts.
  • Telstra is the only true carrier here; everyone else is an aggregator.
  • Their direct-connectivity claims are not independently verifiable from outside.

How does unicode change what I pay per message?

  • A plain GSM-7 message fits 160 characters in one billable segment.
  • One character outside that alphabet switches the whole message to UCS-2.
  • Culprits: a pasted curly apostrophe, an emoji, an em dash.
  • UCS-2 fits only 70 characters per segment, so a 150-character message becomes three segments.
  • Sanitise templates server-side; most billing surprises start here.

Is RCS worth waiting for in Australia?

  • Not for a decision being made now.
  • AU carriers support RCS and every vendor markets it, but availability is patchy.
  • Pricing is quote-only almost everywhere.
  • Billing when RCS falls back to SMS is rarely documented.
  • Build on SMS behind your own interface; revisit when a provider publishes an RCS rate card.

Every tool compared on this page

Email sending API providers comparedWhich email sending API is best for developers?Domain registrars compared: renewal price and exit costWhich domain registrar is cheapest to renew with, and which ones make it hard to leave?S3-compatible storage compared: true cost at 1 TB + 5 TB egressWhich S3-compatible object storage provider is actually cheapest once egress is counted?