listmonk

listmonk costs nothing to license. It is free and open source under AGPLv3, with no subscriber limit and no paid tier. Your real costs in India are the server or cloud VM that runs it, a PostgreSQL database, and the SMTP relay such as Amazon SES that actually delivers the emails, each billed by those providers.

No. listmonk is not sold, so there is no invoice and no GST from the project itself. If you use a cloud provider, an email relay or a one-click host such as PikaPods or Elestio to run listmonk, those companies bill you and any GST appears on their invoices, not on anything from listmonk.

listmonk does not need a trial because the full product is free forever. Every feature, including the API, bounce handling, SSO and roles, is in the open-source release. You can try the public demo on the listmonk website first, then install it with Docker or the single binary on your own machine to test with real lists.

listmonk is far cheaper at scale because you pay only for hosting and your relay, while Mailchimp charges by contact count in US dollars. Mailchimp, however, is fully managed, has automation journeys, templates and support. Pick listmonk if you have an engineer and large lists; pick a hosted tool if marketers must work alone.

listmonk has no Android or iOS app. It is a web dashboard served by the listmonk binary on port 9000, so you manage lists and campaigns from a browser. The interface works on a phone browser, but heavy tasks like editing templates or writing SQL segments are easier on a laptop.

With listmonk your subscriber data lives in your own PostgreSQL database, on whatever server you choose, including an Indian cloud region. The app supports OIDC single sign-on, user roles and scoped API tokens. Since you host it, patching the server, enabling HTTPS and backing up Postgres are your responsibility.

A developer can get listmonk running in under an hour using the official docker-compose file or the binary with the --new-config and --install steps. Most of the real setup time goes into configuring the SMTP relay, SPF, DKIM and DMARC records, bounce handling and importing existing subscribers, which can take a day or two.

listmonk sends email over SMTP by default, but its messenger feature posts each message as JSON to any HTTP service you register. Community messengers exist for AWS Pinpoint SMS and Google FCM push. For WhatsApp you would need to write or adopt a webhook service that calls a WhatsApp Business API provider.

listmonk has no commercial support team or SLA. Help comes from the official documentation and the GitHub repository, where you can open issues and read past discussions. Indian businesses that want hand-holding usually rely on their own engineers or a managed host that runs listmonk for them.

Yes. listmonk includes a transactional API that sends a templated message to one subscriber on demand, so you can trigger order receipts, password resets or alerts from your app. It uses the same SMTP servers and templates as campaigns, which keeps newsletters and transactional mail in one system.

listmonk is email marketing software by Zerodha, an Indian company from Bengaluru. Open-source newsletter and mailing list manager from Zerodha.

listmonk is free to use.

Yes — listmonk offers a free plan you can start with.

Yes. listmonk is built by Zerodha, headquartered in Bengaluru, Karnataka.

listmonk suits startup, small business, smb buyers looking for email marketing software.

Popular alternatives in email marketing software include Pepipost by Netcore, Zoho Campaigns, Mailmodo. Use App Advisor's compare tool to see them side by side.

listmonk is available as a cloud (SaaS) product, with web access.