Last updated October 27, 2026. Build What Sells is a product of WeiBlocks LLC ("we", "us").
Build What Sells shows App Store and Google Play data: charts, app details, reviews and modeled estimates of revenue and downloads. Store data comes from public store pages. Revenue and download figures are estimates from our own model, not reported numbers, and can be wrong by a wide margin. Don't rely on them alone for financial or business decisions.
You sign in with Google or an email link. Keep access to your email account safe: anyone who can read it can sign in as you. One account is for one person. Don't share it, resell access, or copy our data in bulk (scraping, automated downloads, or republishing large parts of it).
Paid plans are billed in advance, monthly or yearly, through Stripe, and renew automatically until you cancel. You can cancel anytime from your account page: you keep access until the end of the period you paid for. Refunds are covered in the refund policy.
We may change features, prices or these terms. Price changes apply from your next renewal, and we'll email you before that happens. We may suspend accounts that break these terms.
The service is provided as is. We aren't liable for losses from using it or from estimates being wrong, to the extent the law allows. Our total liability is limited to what you paid us in the last 12 months.
Questions: usama@weiblocks.io.