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RiverLab
Practice poker pot odds with exact, transparent math
RiverLab is a free, no-login poker education tool for practicing turn call/fold decisions. It combines an exact clean-outs calculator with 12 reviewed drills that show hit probability, required equity, and direct-showdown call EV. Progress stays on the learner’s device. It is deliberately narrow—not a solver, not GTO advice, and not a promise of winning.
I built RiverLab around one poker study problem: players often know what a draw is but still struggle to compare its chance of hitting with the price they are being offered. I wanted the answer to be auditable instead of hidden behind solver authority.
The first release is intentionally focused. It includes a free clean-outs calculator and 12 reviewed turn decisions. Every answer shows the hit probability, required equity, and direct-showdown call EV, with the assumptions made explicit. No account is required, and learning progress stays on the device.
I would value specific feedback on confusing wording, questionable assumptions, or anything that appears mathematically wrong. RiverLab does not model ranges, rake, ties, dirty outs, or future betting, so those limitations are part of the product rather than something I want to hide.
love how it stays laser focused on turn decisions, no fluff or signup walls. the clean outs calculator plus those 12 drills actually made me realize ive been folding way too tight on the turn
Love how the clean-outs calculator makes the math obvious without dumping a wall of theory on you. The direct-showdown call EV on the drills is genuinely useful for someone trying to clean up turn leaks.
Took the turn drills last night and the direct-showdown EV readout really clicked for me, way more useful than another equity calc. Love that nothing leaves my device.
About RiverLab on Product Hunt
“Practice poker pot odds with exact, transparent math”
RiverLab was submitted on Product Hunt and earned 0 upvotes and 5 comments, placing #85 on the daily leaderboard. RiverLab is a free, no-login poker education tool for practicing turn call/fold decisions. It combines an exact clean-outs calculator with 12 reviewed drills that show hit probability, required equity, and direct-showdown call EV. Progress stays on the learner’s device. It is deliberately narrow—not a solver, not GTO advice, and not a promise of winning.
RiverLab was featured in Education (78.9k followers) and Games (98.7k followers) on Product Hunt. Together, these topics include over 57k products, making this a competitive space to launch in.
Who hunted RiverLab?
RiverLab was hunted by Matthew Downing. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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Matthew Downing