Trengo Alternative
MonoChat vs Trengo
If your customers mostly reach you on WhatsApp and social messaging and you want a free plan and AI agents on your own LLM keys, MonoChat is worth comparing with Trengo — here is an honest side-by-side.
Or start with $150 of credit, enough for a first month of Growth
MonoChat vs Trengo: the short answer
Trengo is a customer engagement platform that brings email, WhatsApp, social, live chat and voice into one inbox, with the HelpMate AI Agent and AI Journeys. MonoChat focuses on messaging — WhatsApp Business API with coexistence, calls and Flows, plus Instagram, Facebook, TikTok, Telegram, web chat, SMS and voice — and prices by agents, channels and outgoing messages, with AI agents that run on the LLM provider you choose.
- Who MonoChat is for
- Messaging-first teams whose customers mostly write on WhatsApp and social channels, and who want a free plan and AI agents on their own LLM keys.
- Who Trengo is for
- Teams for whom email is a major support channel, who want an AI agent trained on a help center from the same vendor, or 10 or 20 users bundled into the plan.
- Pricing in short
- MonoChat: Plan price + $30 per extra agent or channel; only outgoing messages count. Trengo: Plans with included users and a yearly conversation allowance.
- Also with MonoChat
- Apps and integrations that fit your business, the option to run on your own servers, and business messaging experience since 2019.
MonoChat vs Trengo: Feature Comparison
Channels, AI, automation and pricing model side by side
Channels
| Feature | MonoChat | Trengo |
|---|---|---|
| WhatsApp Business API | Incl. coexistence, calls and Flows | |
| Instagram & Facebook Messenger | ||
| TikTok DMs | ||
| Other channels | Telegram, web chat, Twilio SMS, voice (SIP) | Email, live chat, SMS, voice |
AI and Automation
| Feature | MonoChat | Trengo |
|---|---|---|
| AI agents | HelpMate AI Agent on all plans | |
| LLM choice | Bring your own key: OpenAI, Anthropic, Gemini, OpenRouter, DeepSeek, Ollama and more | Managed by Trengo; model selection not published |
| Knowledge base | RAG knowledge base (PDF, Excel, web pages, text) | Help Center, websites, PDF/TXT/CSV files, snippets |
| Workflow builder | Visual flows + event-driven automation | AI Journeys for multi-step automation |
| API and custom code | Custom functions, MCP integration, API, custom views | Full API on Pro and Enterprise; limited on Boost |
Team and Regions
| Feature | MonoChat | Trengo |
|---|---|---|
| Team inbox | ||
| Languages and regions | UI and support in English, Turkish, Arabic | AI agent in 70+ languages; European-owned, GDPR-focused |
Pricing
| Feature | MonoChat | Trengo |
|---|---|---|
| Pricing model | Plan price + $30 per extra agent or channel; only outgoing messages count | Plans with included users and a yearly conversation allowance |
| AI billing | Your own AI key with no markup, or token-based MonoChat AI | AI-handled conversations billed per conversation as add-ons |
| Free plan | Free forever: 1 user, 1 channel, 1,000 outgoing messages/month | Free trial |
Competitor information verified from public sources in September 2026.
Most requested features, built in
Features teams often ask for when they compare tools, all included in MonoChat.
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WhatsApp Coexistence with chat history
Keep the WhatsApp Business app on your phone and bring up to about six months of one-to-one chats and your contacts into MonoChat.
Learn more -
Facebook & Instagram Lead Ads
Lead form answers reach MonoChat, and the Lead Ads Follow-up app messages each lead on WhatsApp within minutes.
Learn more -
WhatsApp Flows
Create and publish WhatsApp Flows for your number, send them with a template button and get the answers in the chat.
Learn more -
Custom roles
Create your own roles and choose what each one can see and do, down to an agent seeing only their own conversations.
Learn more -
Appointment booking
Ready-made apps book appointments, classes, viewings and test drives, with calendars and reminders inside MonoChat.
Learn more -
Your own AI key and agent harness
Use your own key for OpenAI, Anthropic, Gemini and more, and run agents on MonoChat’s harness, the OpenAI Agents SDK, the Claude Agent SDK or your own endpoint.
Learn more -
Bulk actions in the inbox
Assign, close, archive or pin many conversations in one go, and update profile fields such as your own stages for many contacts at once.
Learn more -
Triggers, timers and no-reply follow-ups
Start flows on messages, sessions, payments and your own events, wait minutes to days and take a different path when nobody replies.
Learn more
Where MonoChat Stands Out
What messaging-first teams usually gain with MonoChat
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Your LLM, No Markup
Connect OpenAI, Anthropic, Gemini, OpenRouter, DeepSeek or Ollama with your own key. MonoChat adds no markup to AI usage.
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Deep WhatsApp Support
Coexistence with the WhatsApp Business App, WhatsApp calls, Flows, carousel and template messages, and bulk messaging.
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Custom Functions and MCP
Let AI agents and flows call your own APIs, connect MCP servers, and embed custom views for your team.
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Start Free, Pay for What You Send
The free plan includes 1,000 outgoing messages a month. Incoming messages are never counted.
When Trengo Is the Better Choice
MonoChat is not the right fit for everyone. Trengo may suit you better if:
- Email is a major support channel for you and you want it in the same inbox as WhatsApp, social and live chat.
- You want your AI agent trained directly on a help center from the same vendor.
- You prefer a European-owned vendor with security and GDPR at the core of the platform.
- You have a larger team and want 10 or 20 users bundled into the plan from the start.
How to Switch from Trengo to MonoChat
A typical migration in four steps
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Move your WhatsApp number
Your WhatsApp Business API number is registered with Meta, not locked to Trengo. Disconnect it from Trengo and connect it to MonoChat through Meta’s onboarding flow, and plan a short window without campaigns while the switch completes.
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Bring over your message templates
Export the text of your approved templates. Depending on how the number moves, templates either stay with your WhatsApp Business Account or need to be resubmitted to Meta for approval from MonoChat.
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Import your contacts
Export your contacts from Trengo as a CSV with labels, custom fields and opt-in status, then import them into MonoChat.
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Rebuild flows and your AI agent
Recreate your automations in MonoChat’s workflow builder, upload your help center and knowledge documents, connect your AI provider key, and test everything before going live.
FAQ
MonoChat vs Trengo: FAQ
Common questions from teams comparing the two platforms
Is MonoChat a good Trengo alternative?
It can be, especially for teams whose customers mostly use WhatsApp and social messaging. MonoChat brings WhatsApp, Instagram, Facebook, TikTok, Telegram, web chat, SMS and voice into one team inbox and runs AI agents on your own LLM keys. If email is central to your support, Trengo may fit better.
Can I keep my WhatsApp number when switching from Trengo?
Yes. The number belongs to your business and is registered with Meta. You disconnect it from Trengo and connect it to MonoChat through Meta’s onboarding. Export any conversation history you want to keep before you switch.
How does MonoChat pricing compare to Trengo?
Trengo’s plans include a set number of users and a yearly conversation allowance, with extra users, extra conversations and AI-handled conversations billed as add-ons. MonoChat has a free plan, a Growth plan at $120/month with 2 agents, 1 channel and 100,000 outgoing messages included ($30 per extra agent or channel), and custom Enterprise pricing. Only outgoing messages count, and incoming messages are always free.
Does MonoChat have a free plan?
Yes. The Basic plan is free forever with 1 user, 1 channel and 1,000 outgoing messages per month. Incoming messages are always free, and the plan includes custom flows, custom views and AI-powered conversations.
Which AI models can I use in MonoChat?
You can bring your own key for OpenAI, Anthropic, Gemini, OpenRouter, DeepSeek, Ollama and other providers, with no markup from MonoChat — or use MonoChat’s AI APIs, billed by token usage.
Can MonoChat replace Trengo for email support?
MonoChat focuses on messaging channels: WhatsApp, Instagram, Facebook, TikTok, Telegram, web chat, SMS via Twilio and voice over SIP. If email is a major support channel for your team, Trengo, which handles email in the same inbox, may be the better fit.
Keep exploring
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MonoChat vs Respond.io
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MonoChat vs ManyChat
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MonoChat vs Kommo
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MonoChat vs Wati
More channels and your own AI model beyond WhatsApp. -
MonoChat vs SleekFlow
Agent and channel pricing vs active-contact pricing. -
MonoChat vs Interakt
Beyond a WhatsApp and Instagram marketing tool.
Switching? Start with $150 of credit.
One code per business, 30 days to redeem, no card needed — enough to run a real month on your own channels.
First month of Growth on us
Try MonoChat Alongside Trengo
Start on the free plan, connect a channel and test AI agents with your own LLM key before you move your WhatsApp number.
One code per business • 30 days to redeem • No card needed