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Best AI agent to message customers on WhatsApp, iMessage and SMS
Let an AI agent answer and send customer messages on WhatsApp, iMessage, SMS or similar chat apps, with you approving anything sensitive. Here are 6 agents that can do it, with prices we checked on each vendor's own page.
Quick answer
- 6 agents compared, all with verified prices.
- Free plan available: Photon, Kothok AI, OpenClaw, Hermes Agent, Poke, AgentSDR.
- We don't rank them. Pick by price, where it runs and the setup steps on each agent's page.
| Agent | What it does | Price (verified) | Free plan | Works on |
|---|---|---|---|---|
| Photon | Puts your own agent on iMessage, WhatsApp, Telegram, SMS/RCS, email and voice through one API, so customers can text or call it like a person | Free; Pro $25/mo (up to 100 users); Business $250/line/mo (dedicated iMessage lines)checked Oct 16, 2026 | Yes | API, iMessage, WhatsApp, Telegram, SMS/RCS, email, voice |
| Kothok AI | AI agents that handle sales, support, orders, returns and leads from your own content, in the customer's language, on web, WhatsApp, Instagram and Messenger | Free $0; Starter $19/mo; Growth $49/mo; Business $99/mochecked Oct 15, 2026 | Yes | Website widget, WhatsApp, Instagram, Messenger |
| OpenClaw | Open-source agent on your machine; works through WhatsApp/Telegram, runs shell, files, browser, schedules | Free (open source, MIT); you pay for the AI model you connectchecked Oct 14, 2026 | Yes | macOS, Linux, Windows (self-host) |
| Hermes Agent | Memory-first autonomous agent on your server that writes its own skills and runs scheduled tasks | Free (open source, MIT); you pay for the AI model you connectchecked Oct 14, 2026 | Yes | Self-host, CLI, chat apps |
| Poke | Proactive assistant in iMessage/SMS/WhatsApp that handles email, calendar, reminders | $0 (Pro $19/mo, Ultra $199/mo)checked Oct 14, 2026 | Yes | iMessage, SMS, WhatsApp, Telegram |
| AgentSDR | Run email, LinkedIn and WhatsApp outbound with enrichment, reply classification and a unified inbox | Free software (open source); cloud/demo pricing not confirmed on homepagechecked Oct 15, 2026 | Yes | Self-host, Web |
FAQ
- What is the best AI agent to message customers on WhatsApp, iMessage and SMS?
- We compare 6 agents with verified prices that can message customers on WhatsApp, iMessage and SMS. We do not rank a single winner — pick by price, free plan and where it runs.
- Which AI agents to message customers on WhatsApp, iMessage and SMS have verified prices?
- Photon: Free; Pro $25/mo (up to 100 users); Business $250/line/mo (dedicated iMessage lines); Kothok AI: Free $0; Starter $19/mo; Growth $49/mo; Business $99/mo; OpenClaw: Free (open source, MIT); you pay for the AI model you connect; Hermes Agent: Free (open source, MIT); you pay for the AI model you connect; Poke: $0 (Pro $19/mo, Ultra $199/mo); AgentSDR: Free software (open source); cloud/demo pricing not confirmed on homepage.
- Is there a free plan among the best AI agents to message customers on WhatsApp, iMessage and SMS?
- Yes: Photon, Kothok AI, OpenClaw, Hermes Agent, Poke, AgentSDR.
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