Proof of Usefulness Report

Calendly

Analysis completed on 1/16/2026

+794
Proof of Usefulness Score
Unicorn Utility

Calendly is a 'Category King' in scheduling automation with verifiable unicorn status ($3B valuation, ~700 employees). While the submission text itself was generic and low-effort (claiming reach of 'everyone'), the underlying project fundamentals are exceptional. It solves a universal productivity problem with massive adoption. The score reflects its dominant market position, adjusted slightly downward for the poor quality of the specific submission data provided.

Ready to Compete for $150k+ in Prizes?

Move this data into a HackerNoon blog draft to become eligible for your share of $150k+ in cash and software prizes

View All Reports

Score Breakdown

Real World Utility+237
Audience Reach Impact+152
Technical Innovation+127
Evidence Of Traction+250
Market Timing Relevance+90
Functional Completeness+5
Subtotal+862
Usefulness Multiplierx0.92
Final Score+794

Project Details

Project URL
calendly.com
Description
Calendly is the fastest growing company in scheduling automation, connecting over a million people. We provide a simple, yet powerful scheduling software that allows business professionals to easily meet with customers, prospects, partners and candidates. Our users range from individuals to mid-sized businesses, and even large enterprises like Zillow, Marketo, Uber and Zendesk. Regardless of size or industry, our customers benefit from increased productivity and time to accomplish their top priorities. \n\nCalendly works with Google, iCloud, Office 365 and Outlook calendars and apps like Salesforce, Stripe, PayPal, Google Analytics, GoToMeeting and Zapier for a seamless user experience. \n\nReady to get valuable time back to be more productive? Sign up for a free trial today. --\u003e https://calendly.com\n
Audience Reach
everyone
Target Users
everyone
Technologies
Analytics, Automation, Software Development
Traction Evidence
most people have used my product

Algorithm Insights

Market Position
Strong market validation with clear user adoption patterns
User Engagement
Documented reach suggests active user community
Technical Stack
Modern tech stack aligned with sponsor technologies

Recommendations to Increase Usefulness Score

Document User Growth

Provide specific metrics on user acquisition and retention rates

Showcase Revenue Model

Detail sustainable monetization strategy and current revenue streams

Expand Evidence Base

Include testimonials, case studies, and third-party validation

Technical Roadmap

Share development milestones and feature completion timeline