Beta — already in testers' hands

Follow-up automation that watches, not sends.

Drip sequences automate sending. FilsOnly automates noticing -- it watches the real conversations you're already having and tells you when one's gone quiet, then leaves the reply to you.

Free during beta · Gmail & Outlook · Bring your own AI key
FilsOnly nudge
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Not a sequence tool

Automation that watches, not automation that sends.

Most "email follow-up automation" tools are drip sequences -- you write a series of emails in advance and a rule sends the next one on a schedule, whether or not the person already replied. That's built for outbound campaigns, not for the one-off conversations that make up most of your actual inbox.

FilsOnly automates the noticing, not the sending. It watches real conversations you're already having and tells you when one's gone quiet -- it never sends anything without you tapping the reply yourself.

Drip/sequence automationFilsOnly
Built forOutbound campaigns, cold sequencesReal, one-off conversations
Sends messages automaticallyYesNever -- you approve every reply
Stops if the person already replied elsewhereOften doesn't knowYes -- it's watching the actual thread
Private by design
Email stays between your device and Gmail/Outlook
No FilsOnly backend server holds your inbox
Bring your own AI key — no markup, billed at cost
Free during beta
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