The people
who build
revenue.
2 founders. Their careers, from public facts, every one with its source.
Try sold a product · TryPost
FOUNDER OF THE WEEK
Paulo
Castellano
Castellano
Sold Doctor Engage (2018), then built Changelogfy to $2,900 MRR (2026)
See the career →TryPost
Changelogfy
LaunchStack
Doctor Engage
sold
May 2026Paulo Castellano launched TryPostLAUNCHMay 2026Paulo Castellano · TryPost: Released TryPost 1.0MILESTONEJun 2025Paulo Castellano · Changelogfy: Removed the free plan and required a card for the trial; MRR grew 50%MILESTONEMar 2023Paulo Castellano launched LaunchStackLAUNCHAug 2019Paulo Castellano launched ChangelogfyLAUNCH
Paulo Castellano launched TryPostLAUNCHMay 2026Paulo Castellano · TryPost: Released TryPost 1.0MILESTONEJun 2025Paulo Castellano · Changelogfy: Removed the free plan and required a card for the trial; MRR grew 50%MILESTONEMar 2023Paulo Castellano launched LaunchStackLAUNCHAug 2019Paulo Castellano launched ChangelogfyLAUNCHStandings
Latest figure for each founder, with its label and date.
Paulo CastellanoSold Doctor Engage (2018), then built Changelogfy to $2,900 MRR (2026)8 yearssince 20182
André Daniel8 products · since 20242 yearssince 2024No page about you yet?
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