Heymarket vs Sendblue (2026): which should you pick?
As of Nov 13, 2026, Heymarket grades higher than Sendblue: 2.0 against 1.6 out of 4.0.
Checked Nov 12, 2026 and Nov 13, 2026 · graded Nov 12, 2026 and Nov 13, 2026 by ToolGPA
Heymarket grades higher on the free plan and ease of use. They get the same grade on value for money, features and platforms.
Price, platforms and features side by side. The table says where each price was read and when.
Heymarket
Shared inbox for business texting and email
Sendblue
iMessage, SMS and RCS messaging API sold per phone line
Which one is for you
Pick Heymarket if
- Fits if a small team answers customer texts from one shared inbox
- Works for teams already living in HubSpot or Salesforce
Look elsewhere if
- Tight if you're solo: every plan has a 2-user minimum
- Pricey if you need campaigns or automations, which start at $99 a person
- Watch out: messages cost extra, $0.03 a credit, plus $10 a month per campaign for registration
- Skip it if you need the API, which sits on Pro at $199 a person
Pick Sendblue if
- Fits if a developer wants iMessage from an AI agent or app
- Works for teams wiring messages into a CRM
Look elsewhere if
- 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
How we grade them
| 2.0GPAHeymarketFair | 1.6GPASendblueWeak | |
|---|---|---|
| Value for money | D$49 a person a month on yearly billing, with a 2-user minimum, so the floor is $98. Campaigns and automations need Plus at $99 a person. The category's dearer quarter starts at $49. | D$100 a month per dedicated line, in the dearer part of chat tools, where the middle is $36. |
| Free plan and trial | CFree trial with no credit card, but no free plan. You get a taste, then you pay. | DA free sandbox with a shared number and 10 verified contacts, but no outbound messages or webhooks, so it is a test only. |
| Features | CShared inbox, broadcasts, automations and AI agents. But lists, campaigns and group messaging are missing from Standard, and API access needs Pro at $199. | CiMessage, SMS and RCS, an SDK, CLI, MCP server and CRM links. Outbound messaging is Enterprise. |
| Ease of use | CNo store rating on record. It's a web app with an inbox, templates, integrations and a number to text-enable, so there is setup to do. | DNo store rating on record. It is an API, SDK and CLI to build against. |
| Platforms and integrations | BWeb inbox that teammates can also reach from their phones, plus Salesforce, HubSpot, Slack, Zendesk and Zapier. No desktop app on record. | BWeb with HubSpot, Salesforce, GoHighLevel, Close, Pipedrive and more. No apps are listed. |
| Best for | a shared texting inbox for teams | iMessage and SMS through an API |
The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: Heymarket and Sendblue. How we grade
Price against what you get
Heymarket starts at $49 a month for each person and scores 2.3 out of 4 on features, ease of use and platforms. Sendblue starts at $100 a month for each person and scores 2.0.
Heymarket scores higher and starts $51 a month lower. Of the other SMS and chat marketing tools on the chart, 4 score higher than Heymarket for less, and 36 score higher than Sendblue for less.
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
Where they differ
- Heymarket also covers shared inbox and marketing automation.
- Sendblue also covers workflow automation.
At a glance
| Heymarket | Sendblue | |
|---|---|---|
| Pricing | Free trial | Free plan |
| Starts at | $49 per user / month, billed annually | $100 per month per dedicated line |
| Free plan | None | 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 | Free trial, no credit card required | None listed |
| Web | ||
| Made by | Heymarket | Round One Inc. |
| Price read from | heymarket.com | sendblue.com |
| Checked | Nov 12, 2026 | Nov 13, 2026 |
Worth knowing
Heymarket
- Messages are billed separately in credits: the page shows $0.03 per credit and one SMS segment is 1 credit, MMS 2 and RCS rich media 3.
- Prices shown are billed annually with a 2-user minimum; the page says monthly billing is available but does not show its price.
- Group messaging, lists, campaigns and automations are not on Standard, and API access needs Pro.
- A $10 per month per campaign charge covers 10DLC registration and compliance, and RCS rich media is annual-plans only.
Sendblue
- 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
Heymarket
- Shared inbox
- Texts and emails from many users, teams and channels land in one inbox that teammates can read and answer from desktop or their phones.
- Broadcasts and campaigns
- Personalized mass texts go to lists, and campaigns send a series of messages to them. Both start on the Plus plan.
- Automations
- Rules reply, assign chats or enroll contacts in a campaign based on keywords, timing or message sentiment.
- AI agents
- Q&A and scheduling agents trained on your own content answer questions and book appointments; AI Essentials and AI Advanced are tied to the Plus and Pro plans.
- Text-enable existing numbers
- A current business landline or number can be text-enabled or ported, and group messaging lets several contacts share one conversation.
Sendblue
- 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.
Plans
Heymarket
Standard$49
per user / month, billed annually
Two-way messaging, shared inbox, unlimited contacts, templates, basic reporting and HubSpot. Minimum 2 users.
Plus$99
per user / month, billed annually
Adds lists and campaigns, automations, advanced reporting, group messaging and AI Essentials. Minimum 2 users.
Pro$199
per user / month, billed annually
Adds AI Advanced, API access, inbox transfer and advanced administration and security. Minimum 2 users.
EnterpriseCustom
Custom users and feature setup, white-glove onboarding, priority support and higher message volumes.
Sendblue
Free Sandbox$0
Test environment with a shared number, up to 10 verified contacts, CLI and SDK support and community support.
AI Agent$100
per 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.
EnterpriseCustom
Volume pricing with full outbound messaging, multiple dedicated lines, SOC 2 and HIPAA plans and a dedicated account manager.
Ways to pay less
Heymarket
- Annual discount
Save up to 18% on annual billing
The pricing page has a Monthly and Annually toggle and says annual billing saves up to 18%.
Sendblue
No public discounts listed.
Common questions
Which is cheaper, Heymarket or Sendblue?
As of Nov 13, 2026, Heymarket is cheaper to start with: $49 a month for each person, against $100 a month for each person for Sendblue. Heymarket starts at $49 per user / month, billed annually, and Sendblue starts at $100 per month per dedicated line.
Which has a free plan, Heymarket or Sendblue?
As of Nov 13, 2026, only Sendblue has a free plan. Heymarket does not, though it has a free trial.
More comparisons
How this page was made
- The verdict at the top follows a fixed rule. When both tools are in the same category and either is in our top three for it, the verdict follows that ranking: the higher-placed tool is our pick. The top three weigh who each tool suits as well as its grades, so a pick can go against the GPA. Otherwise the page does not pick one and says which grades higher: the higher GPA first; on a tie, the one with a free plan, then the one that starts cheaper in dollars a month, counted the same way for both; if they are still level, what the choice depends on.
- The grades are our own, from each tool’s review or report card. The GPA is their average.
- Prices, plans and platforms come from each tool’s listing. The table above says where each price was read and when.
- The differences and the answers to the questions are worked out from those listings.