Leaflet is a blogging and newsletter platform, the kind of service writers use to build an audience and maybe charge for subscriptions. The technical side looks healthy: the connection is secure, the site is fast, and nothing on malware blacklists points to a scam. Anyone hunting for leaflet.pub reviews on third-party sites will find almost nothing yet, which is normal for a newer or smaller company.
The bigger issue is business paperwork. A service that asks for logins, collects subscriber emails, and sells a $120/year plan needs clear privacy terms and terms of service. Most established SaaS platforms put those front and center before they take money. Here, at least one appears to be missing; that's a real gap, not a nitpick.
No evidence in these signals says leaflet.pub is fake or a scam. But before you pay for Pro, look for a privacy policy that explains data handling, and terms that cover cancellation and refunds. If those turn up, the site has no major red flags. Until then, treat it as mostly safe with a paperwork caveat.