Jarek Kaniewski

Jarek Kaniewski

A simple guy from Poland.

About

Trying my best to live a good life.

Badges

Tastemaker
Tastemaker
Veteran
Veteran
Gone streaking
Gone streaking
Gone streaking 5
Gone streaking 5

Maker History

  • PlankPact
    PlankPactThe plank app where quitting hurts someone else too.
    May 2026
  • 🎉
    Joined Product HuntJune 26th, 2019

Forums

This app looks like any other fitness app. It's not.

Most apps try to motivate you. This one does something different it makes quitting feel like letting someone down.

Here is article we wrote about this topic:

Most people don t abandon their fitness goals because they don t care they abandon them because they re alone with their excuses.
The data is increasingly clear: when your success is tied to another human being, your odds of following through jump dramatically.

Shared accountability two or more people committing to the same daily action, with visible consequences for everyone if someone drops the ball turns I should work out into we said we would.

Jarek Kaniewski

13d ago

PlankPact - The plank app where quitting hurts someone else too.

Before building PlankPact, we ran a simple experiment. We paired 14 strangers on WhatsApp and gave them one task: do a plank every day for 7 days. If your partner quits — you both lose. All 7 pairs completed the challenge. 3 continued on their own. That experiment became this app. Research shows we're more afraid of letting someone down than failing ourselves. That's the entire mechanic behind PlankPact.
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