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KeepKnown — Startup Profile
Startup

KeepKnown

The filter builder your Gmail and Outlook should have

Productivity & Collaboration
0 Momentum score
Signals per week, last 12 weeks
  • Launches
  • Growth
  • Product
  • Hiring & team
  • Money
  • News & stories
  1. Launches KeepKnown launched on Product Hunt

Astracia Signal Score

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About the startup

KeepKnown is an advanced filter builder for Gmail and Outlook. Combine relationship, history, header, attachment, subject, and mailbox signals with nested logic; preview rules on real mail; activate in Shadow, Review Only, or Enforce where supported; and trace every match in a decision log. New filters save paused, reusable templates speed up common workflows, and core filtering does not read email bodies.

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Added to this directory in the past 30 days. Dates refer to the directory listing, not the product launch.

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Explore expertise in Productivity & Collaboration

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Profiles grouped by topic. This does not confirm an offer, availability or a connection to this profile.

Profile

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IIM Bangalore & IIT Kanpur alumni are helping you land your dream career in Management or Technology.

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Media about Productivity & Collaboration

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Shows and channels grouped by topic. A recommendation does not mean this profile was featured or endorsed.

Show

Thoughts from the Ivory Basement

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Ai & SaaS Lab

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Founder stories from Productivity & Collaboration startups

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Retold founder accounts from startups in the same category, each linked to the original.

Story

Buffer's first paying customer arrived four days after a seven-week build

Joel Gascoigne validated Buffer with a two-page landing flow, spent seven weeks of evenings and weekends on a minimal product, launched on 30 November 2010, and recorded a first paying customer within four days.

Tibo stated sub-$2M ARR at sale and $6–7M later, not catalog $3.5M

In a January 2024 Bootstrapped Founder interview, Thibault Louis-Lucas did not quote a $10M sale price or $3.5M ARR; he said Lempire acquired them below $2M annual recurring revenue and that they were nearing $6–7M, with

Tally's March 2024 letter is $100k MRR, not a $3M ARR stamp

Marie Martens wrote that Tally, launched in summer 2020 with Filip, hit $100k monthly recurring revenue in February 2024 with a bootstrapped team of three and more than 250,000 users; this record uses those founder label

Ajay Goel priced GMass after a free year, not after an ARR headline

Ajay Goel’s own GMass posts give send volume, user counts, and plan prices. In a later interview he described a $10,000 first build, a free first year, and $10,000 to $20,000 a month after the paywall. He did not state $

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Subcategories in the same part of the directory, with the number of listed products.

Category

Project & task management

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File storage & transfer

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Whiteboards & mind maps

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