BUILDING SINCE 2018 · NOT REVIEWED BY PAULO
Paulo
Castellano
“Construo produtos SaaS que vendem em mais de 50 países.”in their words · paulocastellano.com
$2,900 MRR
Changelogfy revenue
stated · Oct 2026$157.5K
Changelogfy, total so far
stated · Oct 20269
products
2018
building since
Career
Every main product, who ran it, and when it changed hands.
TryPost2026 →
NOW
Changelogfy2019 →
NOW
LaunchStack2023
Doctor Engage2018
sold
→ an undisclosed buyer
Side projects5
201820192020202120222023202420252026
Paulo runs ita new owner runs itsold, with the stated priceshut downside project
ChangelogfyRUNNINGsince Aug 2019
$2,900
MRR
Oct 2026
$157.5K
total
Oct 2026
Figures Paulo stated, each measuring something different. We don’t draw a line between them.
The journey
Sold Doctor Engage (2018), then built Changelogfy to $2,900 MRR (2026)
Milestones
$157.5K
total · Changelogfy
Oct 2026 · stated
$2,900
MRR · Changelogfy
Oct 2026 · stated
$2,400
MRR · TryPost
Oct 2026 · stated
over $1,000
/mo · LaunchStack
Mar 2023 · old
Latest
May 2026Launched TryPost
May 2026TryPost: Released TryPost 1.0
Sep 2025Exit at BoaConsulta, as stated in 2025
Jun 2025Changelogfy: Removed the free plan and required a card for the trial; MRR grew 50%
Mar 2023Launched LaunchStack
How sure are we?
0 verified by someone other than Paulo48 stated by Paulo in public2 outdated, older than our limits
Read on 11 Oct 2026 · more data coming