# DMFast vs Senlo: which to pick

> DMFast vs Senlo: compare pricing, platforms, categories, launch weeks, upvotes, awards and founders side by side on ProductsFarm, with notes on which to pick.

Canonical: https://productsfarm.com/compare/dmfast-vs-senlo
Last updated: 2026-11-07

|  | [DMFast](https://productsfarm.com/product/dmfast) | [Senlo](https://productsfarm.com/product/senlo) |
| --- | --- | --- |
| What it is | Auto-replies to Instagram and Facebook comments and DMs with your link for small | Visual templates and automations for transactional email on your own provider |
| Pricing | Freemium | Freemium |
| Platforms | Web | API, Web |
| Categories | Marketing, Communication | Developer tools, Communication, Marketing |
| Made for | creators, small businesses, coaches | product teams, developers, marketers |
| Built with | [Next.js](https://productsfarm.com/tech-stack/nextjs), [React](https://productsfarm.com/tech-stack/react), [Cloudflare](https://productsfarm.com/tech-stack/cloudflare), [Tailwind CSS](https://productsfarm.com/tech-stack/tailwind-css) | [Next.js](https://productsfarm.com/tech-stack/nextjs), [React](https://productsfarm.com/tech-stack/react), [Umami](https://productsfarm.com/tech-stack/umami), [Tailwind CSS](https://productsfarm.com/tech-stack/tailwind-css) |
| Upvotes | 0 | 0 |
| Website | [dmfast.app](https://dmfast.app/) | [senlo.io](https://senlo.io/) |

## About DMFast

DMFast is a comment-to-DM tool for Instagram and Facebook. You pick a post, or several, and a keyword such as GUIDE. When someone comments that word, DMFast posts a public reply under the comment and sends the person a direct message with your link, as a tappable card. It also answers story replies, mentions and DM keywords such as PRICE, and it can send product carousels, collect email addresses before sending a link, and send a single reminder if someone stops halfway.

The product connects through Meta's own login and uses Meta's official APIs. It only answers people who commented or messaged first, skips spam comments and repeat commenters, and paces replies under Meta's hourly limit. Results show people reached, link clicks and emails for each auto-reply. Optional AI replies, on the Growth and Business plans, answer DMs that no keyword matches, using the business information the user provides.

DMFast is aimed at people who sell through their posts, such as home bakers, coaches, clothing labels, cooks and creators who get many comments asking for the same link or information. The Free plan covers one account with 100 people a month, and paid plans add more accounts, unlimited people, scheduled DMs and team seats.

## About Senlo

Senlo is a layer on top of the email delivery provider a team already uses, such as Resend, Postmark or any SMTP server. It gives you a visual editor for transactional email templates, with rows, columns, merge tags and conditions, and versions you can roll back to. Templates can be sent through a single API request, and developers receive the same template through the API without writing MJML by hand.

Lifecycle automations start from events sent to the API, such as a new contact being added. An automation can send an email, wait, check your own API whether a user did something, and then take a different path. Each node shows how many contacts are in it. Sends, deliveries, bounces and engagement are shown per workspace, with a live feed of failures and a suppression list. Senlo renders, personalises, tracks and decides, then hands each message to the provider you chose, so switching providers does not require editing templates.

The product suits teams that send transactional email and onboarding sequences and want editors who do not write code to work on them. It can be self-hosted with Docker Compose under the AGPL-3.0 license, or used as a hosted service with a free plan for one person, and paid plans that add members, roles and audit logs.

## Related

- [DMFast](https://productsfarm.com/product/dmfast)
- [Senlo](https://productsfarm.com/product/senlo)
- [More comparisons](https://productsfarm.com/compare)