EdgeCheck
A consumer prediction-market companion app that scans Kalshi and Polymarket contracts in plain English, compares each market price to real-world forecasts (NOAA, betting exchanges, sportsbooks), and tells regular people when a market looks obviously mispriced and how risky the trade is.
retail traders and sports-betting fans curious about prediction markets but intimidated by the trading interface
- Plain-English market cards that explain what each contract actually pays out, who resolves it, and how it usually settles
- Mispricing alerts comparing market price to NOAA forecasts, sportsbook lines, or consensus data with a confidence score
- Risk flags that warn users about illiquid markets, ambiguous resolution rules, and contracts likely to be cancelled
- Portfolio view showing your open prediction-market positions alongside traditional bets so you can size exposure across event types
Polymarket and Kalshi are both surging in volume after the 2024 election, but their UIs are still trader-oriented — millions of sports-betting users are searching for a friendlier on-ramp and weather is the easiest entry point.
Kalshi + Polymarket hit $44–63.5B in 2025 volume with monthly peaks above $10B, driven largely by retail/sports crossover, and weather trading is a documented and active niche (bots publicly profiting).Prediction markets explode in 2025: Inside the Kalshi-Polymarket duopoly ↗Prediction Markets in 2025: Data, Stats & Key Trends ↗Found The Weather Trading Bots Quietly Making $24,000 On Polymarket ↗
Crowded field already: polymarketanalytics.com compares 60k+ markets across both platforms, crossodds.app is an arbitrage scanner, polymarketweather.com runs a weather bot, and lineups/tradealgo curate the rest — most tools are trader/quant oriented but a truly plain-English consumer companion is unproven.Polymarket vs Kalshi - Compare Prediction Markets & Prices ↗crossodds.app - Prediction Market Arbitrage Scanner ↗Polymarket Weather — WeatherBot for Polymarket Markets ↗Best Prediction Market Tools For Polymarket, Kalshi, & More ↗
Traders clearly pay for scanners/bots (weather bots publicly making $24k and pricing themselves as services), but a consumer-facing companion shifts the buyer from 'pro trader' to casual retail, where willingness to pay $10–30/mo for plain-English analysis is unproven and Polymarket/Kalshi could ship it natively.Polymarket Weather Trading Bots: How They Actually Work ↗Best Prediction Market Tools & Trackers 2026 | TradeAlgo ↗
Prediction markets are on a structural growth curve and Kalshi's CFTC regulation gives staying power, but EdgeCheck lives at the mercy of platform API terms, native-feature copycats, and ongoing US sports-betting regulatory whiplash.Prediction Market Giants Kalshi and Polymarket Achieve Record $1.4B Trading Month ↗
Technically easy — both platforms expose public REST/WebSocket APIs and NOAA/ECMWF/GFS forecasts are free; the hard part is productizing natural-language mispricing alerts in a way that doesn't get arbitraged away or attract regulatory scrutiny as quasi-advice.