OwnANumber
Pick any number from 1 to 8 billion. Own it forever.
OwnANumber launched on March 28, 2026.
What it does
Ever thought about owning a number? Now you can. OwnANumber lets you claim any number from 1 to 8 billion. Each number is unique — once taken, it's gone. Search for your number, claim it, and get a certificate of ownership. 200 free numbers available daily! Numbers are priced by category — lucky 7777, round 1000, years like 1990. We're giving away free numbers every day to early adopters. Sign in with Google and grab yours before someone else does.
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BYN — Every Number Has An OwnerJun 2026 · buyyournumber.app · ▲2Every number has only one owner. Claim yours.
Own or Rent: Smarter Home Decisions2025 · ownorent.com · ▲11Hi HN, I built Own or Rent (https://ownorent.com) after getting frustrated with existing rent vs. buy calculators that hide assumptions and use confusing jargon. What's different: - 100% transparent calculations - no hidden fees or confusing math - Results in under 5 minutes without lengthy forms - Public REST API for developers building financial apps or LLM integrations - Clear breakdown of mortgage payments, taxes, maintenance, and opportunity costs The API is particularly useful for chatbots, financial advisory platforms, or any app that needs reliable rent vs. buy…
A FIRE calculator that verifies or determines your retirement numberFeb 2026 · retirenumber.com · ▲5Most retirement calculators either oversimplify things or ask you to link your accounts so they can make money off your data. I wanted something that actually helped me see if I was on track without handing over a bank login, so I built RetireNumber. It's a privacy-first retirement planner. You type in your own numbers. No account linking, no selling your data, no VC. Just me and a subscription. The engine does real math: Monte Carlo with 1,000 runs, historical backtesting to 1928 using Shiller's Yale data, tax-aware withdrawal strategies, and scenario comparison so you can try different…
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