No YC interview, but here's my application

In plain words

Penflip is a writing platform launched in 2013 that helps writers collaborate and share their work. It serves novelists, journalists, and other creative writers who want to work together on documents with version control and feedback features. The product combines collaborative editing with git-based tracking, allowing writers to manage revisions and contributions from multiple people on the same project.

written from the facts on this page · September 2026

• AG
  A Github for writers?2013 · penflip.com · ▲181
• PI
  Pen.io2011 · pen.io · ▲108
• 
  Bulletpen2025 · bulletpen.ai · ▲480

  Write great essays while you yap

• 
  Hardbound Writer's Program2016 · medium.com · ▲297

  YC for writers: experiment in a new media format

• PG
  Penflip - GitHub for writing2014 · penflip.com · ▲8
• 
  Penflip2013 · ▲119

  A social writing platform

• 
  SimCity, but with Permits▲855

  A free city-building game in your browser. You are the mayor. You know what the city needs. Now get it past the zoning board, the neighbors, the appeals court and the next election.

  Life & fun · 20h ago · permit.petercai.com

• IV
  I've been paying for a rural Tanzanian's education for 10 years▲778

  Life & fun · 13d ago · tanzaniaeducationproject.org

• 
  Bigwords.page – Turn any screen into a sign. The URL is the app▲728

  Turn a phone, tablet or TV into a sign. Type a message and it fills the screen: welcome signs, timers, Wi-Fi passwords and more. No app, no account, free.

  Life & fun · 14d ago · bigwords.page

• 
  Guitoro, a virtual guitar you strum with your keyboard▲573

  Play a free virtual guitar online with your keyboard or by touch. Slow songs down and see every chord, string and strum. Acoustic, classic, electric and bass.

  Life & fun · 8d ago · guitoro.com

• 
  See *almost* any carriers phone settings▲432

  Carrier settings from iPhone, Pixel and Galaxy firmware, decoded and compared: APNs, VoLTE, 5G and Wi-Fi Calling per carrier, and what each build changed.

  Life & fun · 12d ago · carrierexplode.com

• 
  The whole Solar System and every tracked satellite, live in the browser▲407

  Life & fun · 22d ago · space.bl2.net

• PG
  Probabilistically Generating HN Post Titles▲683

  Life & fun · 2013 · grantslatton.com

• HD
  Hosted Docker-as-a-Service on SSDs for $5▲387

  Dev tools · 2013 · blog.copper.io

• IM
  I'm working on an open-source Gmail replacement▲387

  Dev tools · 2013 · khamidou.github.io

• 
  Blinkist▲288

  Key insights from 2,000+ bestselling nonfiction books

  Life & fun · 2013 · blinkist.com

• GC
  Gitter – Chat for GitHub▲243

  Dev tools · 2013 · gitter.im

• 
  Import.io▲239

  Scrape the web, sans manual scripting

  AI · 2013 · import.io