Looking For ~30 Collectors To Beta-Test A US Coin ID App (Free Pro)

I'm a collector and developer in Houston. Over the past year and more, I built RcR — Rare Coin Recognition — which identifies a US coin from two phone photos: type, date, mint mark, an estimated grade, and a market value drawn from three years of real sold prices rather than asking prices. It also shows mintage, composition, weight/diameter, and the design details.

It's in closed beta, and I need collectors with real coins to find the mistakes. Free full Pro access for the whole beta; in return, I'd ask you to scan 10 or more coins over a week or two and tap Correct / Wrong on each result (about 20 seconds a coin — it's the single most useful thing a tester can do). Runs in the phone browser, nothing to install; US coins only for now. No data selling.

Application (one minute): https://app.rcrapp.com/beta/apply?src=ccf

Glad to answer anything here.