Sendblue review (2026): is the free plan enough?
iMessage, SMS and RCS messaging API sold per phone line
Black Friday: is there a Sendblue sale?
Sendblue report card
Weak · out of 4.0 · graded Nov 13, 2026
Best for iMessage and SMS through an API
Sendblue sends iMessage, SMS and RCS from one line through an API, at $100 a month per dedicated line. That plan is inbound-first, full outbound messaging is on the custom Enterprise tier, and the free sandbox has no outbound messages.
Who Sendblue is for
- Fits if a developer wants iMessage from an AI agent or app
- Works for teams wiring messages into a CRM
Who Sendblue is not for
- Tight if you want outbound messaging, as the $100 plan is inbound-first with 1,000 contacts a day
- Skip it if you want a working free plan, as the sandbox is for testing only
- Pricey if you need many lines, as each is $100 and annual billing goes through sales
- Watch out: iMessage reaches Apple devices only
- Not for you if you do not code, as it is an API
Why Sendblue gets a 1.6
Five grades, each with its reason. The GPA is their average: an A is 4 points, an F is none.
- DValue for money$100 a month per dedicated line, in the dearer part of chat tools, where the middle is $36.
- DFree plan and trialA free sandbox with a shared number and 10 verified contacts, but no outbound messages or webhooks, so it is a test only.
- CFeaturesiMessage, SMS and RCS, an SDK, CLI, MCP server and CRM links. Outbound messaging is Enterprise.
- DEase of useNo store rating on record. It is an API, SDK and CLI to build against.
- BPlatforms and integrationsWeb with HubSpot, Salesforce, GoHighLevel, Close, Pipedrive and more. No apps are listed.
What these grades rest on. Graded from this listing, whose facts were read from Sendblue's own pages on 13 November 2026. Not based on using the product, and shorter than our full reviews. How we review and grade.
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<a href="https://toolgpa.com/tools/sendblue#review"><img src="https://toolgpa.com/badge/sendblue.svg" alt="Sendblue: 1.6 GPA on ToolGPA" width="196" height="56"></a>Where Sendblue stands among SMS and chat marketing tools
Sendblue's GPA of 1.6 is higher than 2 of the 77 other SMS and chat marketing tools we grade, and level with 13.
It stands best on platforms and integrations (B, above 19 of 77) and worst on value for money (D, above 0).
Its paid plans start at $100 a month for each person, against a middle price of $36 for the category: 44 of the 50 others that charge start lower.
On features, ease of use and platforms it scores 2.0 out of 4. 36 tools score higher and cost less.
Each grade against the category
Every bar is all 78 SMS and chat marketing tools we grade, cut by the letter each got. Sendblue’s own letter is outlined.
- DValue for moneyAbove 0 of 77, level with 14
- DFree plan and trialAbove 24 of 77, level with 16
- CFeaturesAbove 3 of 77, level with 61
- DEase of useAbove 0 of 77, level with 4
- BPlatforms and integrationsAbove 19 of 77, level with 58
Price against what you get
Each dot is one of 51 SMS and chat marketing tools. Further left costs less, and higher up scores better on features, ease of use and platforms. Point at a dot to see which tool it is.
Features, ease of use and platforms, averaged
What paid plans start at, a month (each step along is roughly double) →
- The best score at each price
- Has a free plan
- No free plan
Keep Sendblue, or make your own?
Keep it
To replace Sendblue you would be making texts to thousands of numbers, registered with the carriers. That is not a weekend's work, with an AI app builder or without one.
That makes this kind of software worth paying for, not this one in particular: 62 of the 77 other SMS and chat marketing tools grade higher. It costs $1,200 a year.
What you could not
- Texts to thousands of numbers, registered with the carriers.
- An AI agent, with the models and the safeguards behind it.
- Connections to other products, each kept working as those products change.
- Texts from a business number, registered with the carriers.
- It is priced for each person, which means accounts and billing for a team.
- What a company asks for before it lets staff use something: SOC 2 and HIPAA.
What this rests on. Sendblue’s listing: what it does, where it runs, what it plugs into and what it costs. It is a judgement about the kind of software this is. We have not built a replacement for it, and making your own means looking after it too. How we decide, and every tool’s verdict.
What is Sendblue?
Sendblue provides an API and a CRM add-on for sending and receiving iMessages, SMS and RCS from a dedicated phone number. It is used by sales teams that want blue-bubble messages from their CRM and by developers building messaging agents. Pricing is a flat monthly fee per line with no per-message charge.
Worth knowing
- The $100 AI Agent plan is inbound-first with 1,000 inbound contacts a day; full outbound messaging is part of the custom Enterprise tier.
- The free sandbox has no dedicated number, no outbound messaging and no webhooks.
- Annual billing and volume discounts for 10 or more lines are available only by contacting sales.
- iMessage reaches Apple devices only; the vendor says each line can also send SMS and RCS.
Key features
- iMessage, SMS and RCS from one line
- Each dedicated line can send and receive iMessages, SMS and RCS, according to the pricing FAQ.
- Messaging API, SDK and CLI
- A REST API with an npm package and CLI lets developers provision a number and send messages in code.
- CRM integrations
- Native connections for GoHighLevel, HubSpot, Salesforce, Close and Monday.com log messages on contact timelines.
- MCP server for AI tools
- A Sendblue MCP server lets AI coding tools and agents built on Anthropic's SDK send and receive iMessages.
- No per-message fees
- The page states there are no per-message fees, A2P registration charges, carrier surcharges or SMS fallback fees.
- Compliance
- The vendor says it is SOC 2 Type II certified and offers HIPAA plans on enterprise terms.
Sendblue pricing
As of Nov 13, 2026, Sendblue has a free plan, and paid plans start at $100 per month per dedicated line.
- Starts at
- $100 per month per dedicated line
- Free plan
- Free Sandbox: full API access with a shared number and up to 10 verified contacts; inbound-first, with no outbound messaging or webhooks.
- Free trial
- None listed
| Plan | Price | What you get |
|---|---|---|
| Free Sandbox | $0 | Test environment with a shared number, up to 10 verified contacts, CLI and SDK support and community support. |
| AI Agent | $100per month per dedicated line | A dedicated phone number for inbound-first messaging, 1,000 inbound contacts a day, webhooks, media, typing indicators, reactions and priority support. |
| Enterprise | Custom | Volume pricing with full outbound messaging, multiple dedicated lines, SOC 2 and HIPAA plans and a dedicated account manager. |
Read from sendblue.com on Nov 13, 2026. Prices change, so confirm with Sendblue before you buy.
Works with
- HubSpot
- Salesforce
- GoHighLevel
- Close
- Monday.com
- Pipedrive
- Clay
- Apollo.io
Sendblue alternatives
- Sendblue vs Heymarket
Free trial · from $49/mo
- Sendblue vs TextUs
From $299/mo
- Sendblue vs Text Request
Free trial · from $59.99/mo
- Sendblue vs SimpleTexting
Free trial · from $23.20/mo
- Sendblue vs Avochato
Free trial · from $0
Common questions
Does Sendblue have an Android app?
No Android app was listed when its pages were read on Nov 13, 2026. Sendblue is listed for Web.
Does Sendblue have an iPhone app?
No iPhone app was listed when its pages were read on Nov 13, 2026. Sendblue is listed for Web.
Is Sendblue open source?
Sendblue is not described as open source on its own site, as read on Nov 13, 2026.
Does Sendblue have an API?
Yes. Sendblue offers a public API, according to its own site.
Sources for this page
The prices, plans, platforms and features above were read from these pages on Nov 13, 2026.