About Business Ideas Database
BID is a database of business ideas validated by real Reddit pain points and App Store opportunity gaps. We exist because most idea lists are AI slop or stale listicles — and the best signal for what people want is what they're already complaining about.
How we find ideas
Three sources feed every idea on the site:
- Reddit signal. A custom scanner monitors ~170 entrepreneur and product subreddits, pulling threads where people describe a problem they would pay to solve. We use upvote count, comment depth, and language patterns to filter for genuine pain vs. casual gripe.
- App Store opportunity gaps. iTunes Search + RSS reviews surface apps with active demand but poor execution — a common signature of a category ready for a better product.
- AI scoring. Each raw signal is passed through Grok with a structured prompt that estimates market size, defensibility, build complexity, and competitive density. Nothing publishes until the score crosses a threshold and the evidence holds up.
Why this exists
Most "100 startup ideas" posts are generated from thin air. They sound plausible because language models are good at sounding plausible, but they have no demand signal underneath. Building on a generated idea is how you spend six months on something nobody wants.
Proof is the product. Every idea here has a Reddit thread, an App Store review pattern, or a measurable demand signal behind it. We'd rather publish fewer ideas with real evidence than a long list of speculative ones.
Who this is for
Indie hackers, solo founders, and side-project builders who would rather start with a validated opportunity than invent one. If you're looking for what to build next — and you want the answer to be grounded in real demand — BID is built for you.
Built by Napkin
BID is a product by Napkin, an indie product studio shipping small, useful tools for founders and operators.