Ashish Rawat

Tap to drop a floor and stack a tower as high as you can. Every height you pass is a real building, from Stonehenge at 7 m to the Burj Khalifa at 828 m. Two ways to lose: the slab slides off, or the tower leans past what it can stand. The wind gets stronger the higher you climb. Free, no signup, plays in the browser.

Most disposable email blockers run the same public GitHub list. That list has .gov, .edu, Apple Hide My Email, Firefox Relay and uk.com on it, so real customers get rejected at your signup form and you never find out. SignupScore reviews every domain before it blocks anything. It also catches dynamic DNS, gibberish addresses, typo domains like gmial.com, role accounts, and the same person returning with a different spelling. Free plan is 250 checks a month. API and dashboard.

Describe any form or quiz and AI builds it in seconds - with fields, logic, scoring, and design. No drag-and-drop needed. Create timed quizzes with auto-scoring and instant feedback. Turn PDFs, YouTube videos, or URLs into quizzes. Build product recommendation quizzes for lead gen. Features that Typeform charges $59/mo for - logic jumps, calculations, payments, redirects - are included free. 100+ templates. Google Sheets, Zapier, webhooks, email notifications. Embed anywhere.