Guni SMS review
Guni SMS is an Australian headquartered provider based in Sydney, New South Wales, with a local entity and a local support team. Its published Australian prices are billed in Australian dollars, at 4.50c for one thousand messages a month and 4.30c at fifteen thousand. ACMA's approved list for the SMS Sender ID Register lists it under its own name as a partner of a certified telco.
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Not yet scored
One of the 17 providers with a published Australian rate, and one of 45 brands reviewed. Not yet scored, so it holds no position in the ranked table.
- A complete, published Australian dollar rate ladder from 1,000 to 500,000 or more messages a month, not a floor or a quote
- Sydney based with a stated 24/7 local support team on 1300 011 117, onshore servers and direct telco connections
- A 4.7 out of 5 rating from 29 reviews on Trustpilot, and a 2026 Western Sydney Business Excellence Innovation finalist
- ISO/IEC 27001:2022 certification covering its cloud communications platform for messaging
- No registered company name or ABN could be confirmed for this review
- The 99.9% availability claim has no SLA document, credit schedule or remedy behind it
- A dedicated virtual number costs $15 a month, and its GST treatment is not stated
Where Guni SMS stands
Guni SMS is a Sydney based SMS and messaging gateway whose About page lists headquarters at Level 1/477 Pitt Street, Haymarket and a second address in Melbourne. It claims a 24/7 local support team, onshore servers, direct carrier connections and 99.9% availability, with no SLA document behind that figure. Its dedicated pricing page publishes a full nine band rate table in Australian dollars excluding GST, from 4.5c per SMS segment under 5,000 a month down to 2.7c from 500,000 a month, plus a separate MMS table from 39c down to 28c per segment. It states it serves more than 2,000 Australian businesses, holds 4.7 out of 5 from 29 Trustpilot reviews, and was a finalist in the Innovation category of the 2026 Western Sydney Awards for Business Excellence.
ACMA lists it as GUNI SMS PTY LTD. ACMA's list read 19 September 2026.
Guni SMS publishes no founded.
What Guni SMS offers Australian senders
| API | Yes |
|---|---|
| Email to SMS | Yes |
| Two-way SMS | Yes |
| MMS to Australian mobiles | Yes |
| Dedicated number | Yes |
| Shared number | Yes |
| Alphanumeric sender ID | Yes |
Nothing published either way on SMPP or RCS.
Guni SMS states that it holds ISO/IEC 27001 (Guni cloud communications platform for messaging and Guni Operator Software (ISO/IEC 27001:2022, certificate SCK/05/GDP/24/61/1648)).
What Guni SMS costs
| Messages a month | Rate |
|---|---|
| 1K | 4.50c |
| 15K | 4.30c |
| 125K | 3.30c |
| 250K | 3.20c |
Published in AUD ex GST per SMS segment on a nine-band table: 4.5c under 5,000 a month, 4.3c from 5,000, 3.9c from 25,000, 3.5c from 50,000, 3.3c from 100,000, 3.2c from 200,000, 3.0c from 300,000, 2.9c from 400,000, and 2.7c from 500,000. The 1K, 15K, 125K and 250K figures above are the band each volume falls into. A separate MMS table runs from 39c under 100 segments down to 28c from 30,000.
Read from the provider's own pricing page on 2026-09-28.
Guni SMS against the providers either side of it on price
| Messages a month | Nearest cheaper | Guni SMS | Nearest dearer |
|---|---|---|---|
| 1,000 | Cellcast 3.70c, $8 less | 4.50c, 3 of 17 | Notifyre 5.00c, $5 more |
| 15,000 | Cellcast 3.10c, $180 less | 4.30c, 3 of 17 | Notifyre 5.00c, $105 more |
The full rate order for every provider is on cheapest bulk SMS in Australia.
What Guni SMS costs at your volume
Guni SMS at 15K tier: 4.30cAt 15,000 messages a month Guni SMS costs $645, $195 more than Mobile Message, $240 below the field median. Rates are each provider's published price at the 15K tier; above 250,000 most providers negotiate.
Guni SMS pricing
Guni SMS prices on a published per-segment rate, banded by monthly volume from its smallest band up to its largest. Its dedicated pricing page sets out a complete rate table in Australian dollars excluding GST, not a floor price or a quote on request. This review credits that published ladder as the provider's core strength.
The rates this site tracks run from 4.50c at one thousand messages a month to 4.30c at fifteen thousand, then 3.30c at one hundred and twenty five thousand and 3.20c at two hundred and fifty thousand. The monthly bill comes to $45 at one thousand and $645 at fifteen thousand.
Of the 17 providers that bill in Australian dollars and publish a rate at fifteen thousand a month, Guni SMS places 3rd.
Two things change the real cost beyond the segment rate. A dedicated virtual number adds $15 a month for a dedicated virtual number; GST treatment not stated a month, and the facts note that its GST treatment is not stated. MMS runs on a separate published table of its own.
Signup is free with no credit card needed. Its SMS API page offers a first bundle of free SMS, and its homepage offers free credits through an interactive demo or a call with an SMS expert. Price tells only part of the story, and the next section covers what the account can actually do.
Guni SMS features for Australian senders
The SMS API is a REST gateway, which its API page describes as a secure route for bulk text and media communication via Australian telco operators. You authenticate with a Bearer app token in the Authorization header, generated in its Integrations portal. A free sandbox account, which it calls testMode, exists for developing and validating an integration before you send live traffic. Delivery receipts and replies are pushed to your URL.
Email to SMS lets you send from your inbox to an address at sms.gunisms.com.au formed from the mobile number. You register each sending address as an Allowed Address, and multiple addresses are supported. The subject line can be included in or excluded from the message. Replies are forwarded to your sending inbox, and each reply email shows the recent messages in the conversation.
Each email to SMS message is charged per segment, with a length you can adjust in the dashboard. The web app accepts recipient file uploads in CSV and Excel. MMS to Australian mobiles works through the online portal for one-to-one messages or bulk sends. Two-way SMS is published as well.
Three sender types appear in its help centre. A dedicated virtual number carries two-way communication, a shared number draws from a random pool and is available to all users by default, and an alphanumeric sender ID is available by application. One of those sender options connects directly to the register covered next.
Guni SMS sender ID and the ACMA register
ACMA's approved list for the SMS Sender ID Register lists Guni SMS under its own name as a partner of a certified telco, with the entry reading GUNI SMS PTY LTD.
For your business, that listing means you can register a sender ID through Guni SMS rather than find a separate listed partner. Its help centre describes how to apply for alphanumeric sender IDs within the platform. Registration is one matter; day to day support is another, and that is the next section.
Guni SMS support and reputation
Guni SMS claims an around the clock local Australian support team, reachable on its published phone number. It also claims "99.9% availability, backed by onshore servers" claimed on the homepage; no SLA document, credit schedule or remedy was found behind it availability, backed by onshore servers for secure delivery.
That availability claim has no SLA document, credit schedule or remedy behind it. This review also could not confirm a registered company name or ABN for the provider.
On the public record, Guni SMS holds 4.7 out of five from 29 reviews on Trustpilot. It states that it serves a large base of Australian businesses, and it was a finalist in the Innovation category of the Western Sydney Awards for Business Excellence. It states that its cloud communications platform for messaging holds ISO/IEC 27001:2022 certification. That mix of strengths and gaps shapes who the service fits.
Who Guni SMS suits
Guni SMS suits a business that wants a complete published rate ladder in Australian dollars across its full volume range, with a local support team, onshore servers and the standard set of sending methods. The API, email to SMS, MMS and two-way options cover the common Australian sending needs in one platform.
A business that needs a named SLA remedy behind an availability claim, or a confirmed company registration before it signs, should look elsewhere. The absence of named Australian carriers on its routes may also matter to senders who must know whose network carries their traffic.
Similar providers to Guni SMS
- ClickSend · 8.3/10, 6.70c at 15,000, Melbourne, Victoria
- SMS Broadcast · 7.0/10, 6.00c at 15,000, Melbourne, Victoria
- 160.com.au · 5.41c at 15,000, Sydney, New South Wales
Compare Guni SMS with another provider
| Measure | Guni SMS | Chatti |
|---|---|---|
| Rate at 1K | 4.50c | 6.90c |
| Rate at 15K | 4.30c | 5.90c |
| Rate at 125K | 3.30c | 5.50c |
| Rate at 250K | 3.20c | priced on monthly volume |
| Cost at 15,000 a month | $645 | $885 |
| Dedicated number | Yes | Yes |
| Shared number | Yes | Yes |
| Alpha sender ID | Yes | Yes |
| Email to SMS | Yes | Yes |
| Two way | Yes | Yes |
| MMS | Yes | Yes |
| Head office | Sydney, New South Wales | Brisbane, Queensland |
| Public reviews | 4.7/5 from 29 reviews on Trustpilot | 4.3/5 from 9 reviews on Trustpilot |
Verification log
What was read, where and when, with captures taken from an Australian IP (our method).
| Checked | Date read | What it said |
|---|---|---|
| Published rate card | Published in AUD ex GST per SMS segment on a nine-band table: 4.5c under 5,000 a month, 4.3c from 5,000, 3.9c from 25,000, 3.5c from 50,000, 3.3c from 100,000, 3.2c from 200,000, 3.0c from 300,000, 2.9c from 400,000, and 2.7c from 500,000. The 1K, 15K, 125K and 250K figures above are the band each volume falls into. A separate MMS table runs from 39c under 100 segments down to 28c from 30,000. Archived capture from ( before this verification ) | |
| Public reviews on Trustpilot | 4.7 out of 5 from 29 reviews |