Scroll Brake vs WaitlistPing

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Scroll Brake compared with WaitlistPing
Detail	Scroll Brake	WaitlistPing
What it does	Stop doomscrolling on iPhone and Chrome with mental math barriers before feeds open	A waitlist for fully booked Calendly events that automatically notifies waiting clients when a slot becomes available
Stage	Startup	Not given
Founded	2024	Not given
Based in	EE	Not given
Pricing model	Freemium	Free trial
Pricing	Free Tier & Chrome Extension (Free), iOS Pro Monthly ($3.99/mo), iOS Pro Annual ($12.99/yr), iOS Pro Lifetime ($17.99). Free tier includes up to 3 active app or category rules with all 7 math levels. Pro tiers add unlimited blocking rules, Strict Mode, and weekly analytics.	$15 per month after a 14-day free trial with no card required. One plan covers one Calendly account with waitlists for all event types, instant email offers on every cancellation and reschedule, day and time preferences for clients, and a dashboard showing slots refilled from the waitlist.
Key features	Adaptive difficulty that increases with repeated attempts throughout the day True Active-Time Tracking on Chrome that pauses when tab is inactive Surgical URL and YouTube Shorts blocking on Chrome Anti-cheat reshuffle that regenerates math problems when Calculator is opened Private local storage with no account or cloud sync required	Automatic cancellation and reschedule detection through Calendly webhooks Instant email notifications to waiting clients with direct booking links Client preference selection for specific days and times First-come-first-served booking with fallback page for missed slots Dashboard with waitlist metrics and refill tracking Shareable waitlist link with badge and QR code options Automatic minimum 60-minute notice for slot offers Secure OAuth login without exposing Calendly password One-click unsubscribe link in every email notification Automatic waitlist removal when clients book successfully
What makes it different	Native Swift on iOS 26.5+ using new Screen Time API instead of push notification spam	Works directly with Calendly without requiring a separate booking page Respects client scheduling preferences to send only relevant offers Fills cancelled slots faster than manual follow-up through automated emails
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	1 +1 (up) since last check	1 +1 (up) since last check
Trust Flow (Majestic)	2	0
Citation Flow (Majestic)	17	0
Referring domains (Majestic)	11	0

5 details filled in for both companies.

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