On this page
Nothing. Gasper is free to download and free to use.
The details
Gasper is free on the App Store, and everything in it is free: ranking through head-to-heads, your scare scores, your rankings, the heart, lists, the feed, the leaderboard, the daily pick, the streak, your Taste tab and Bloodwork. There is no subscription, no paid tier and no paywall anywhere in the app.
Why free
Because the Community Scare only works if everyone's honest rankings are in it. A paywall in front of ranking would make the community figure a reading of the people who paid, which is a worse number.
Related
The start here guide walks through your first few rankings. If you came here from the old FAQ, the answer has not changed.

