Features

One terminal. Both platforms. Every edge.

skreenr gives prediction market traders a unified command center across Polymarket and Kalshi — real-time data, cross-platform comparison, arbitrage scanning, and precision alerts in a single interface. No more tab-switching. No more missed moves.

Dashboard

Your trading day starts here.

The skreenr Dashboard gives you a complete snapshot of the prediction market landscape the moment you open the terminal. At a glance you see total markets indexed across both platforms, your active watchlists, unread alerts, and connected platforms — plus the data feeds that matter most.

Top Gainers & Top Losers surface the biggest probability swings happening right now across both Polymarket and Kalshi, so you immediately see where the action is before you start digging.

Top by Volume highlights the highest-volume markets currently trading. These are the markets with the deepest liquidity, tightest spreads, and most active participation — the contracts where execution is cleanest.

Recently Added shows newly launched markets from both platforms, giving you first-mover visibility on contracts that just went live.

Today's Schedule tracks markets closing today, including those marked "closing soon" — so you never miss a resolution deadline or a last-minute trading window.

Market Directory

348,000+ markets. One search bar.

The Market Directory is the most comprehensive prediction market index available, aggregating every open and recently resolved contract across Polymarket and Kalshi into a single, searchable interface.

Browse in grid view for visual scanning or switch to list view for dense, data-rich browsing. Every market card shows the current probability, recent price movement, platform source, number of contracts, category, total volume, and time until resolution.

Filter by platform — Polymarket, Kalshi, or both. Filter by category — politics, sports, crypto, economics, entertainment, and more. Filter by status — open, closing soon, or resolved. Search by keyword across market titles to find exactly what you're looking for in seconds.

The Market Directory is fully accessible on the Free tier, making it skreenr's primary SEO and organic discovery engine — and the reason traders bookmark the terminal and come back daily.

Compare Markets

See both platforms side by side. Instantly.

When the same event is traded on both Polymarket and Kalshi, prices almost always differ. Different trader populations, different fee structures, different liquidity — all create persistent pricing gaps that single-platform traders never see.

skreenr's Compare page automatically matches equivalent markets across both platforms. Over 1,000 matched market pairs are available, each showing the current price on both platforms, the spread, and a match confidence score. Search matched markets by keyword, or toggle between cross-platform matches and event contract groupings.

Drill into any matched market to see the full comparison:

A Probability Over Time chart overlays both platforms' price histories on a single timeline, so you can see where prices converged, where they diverged, and how each platform reacted to news.

Spread Analysis shows the current spread in points, which platform has the cheapest "Yes," and which has the cheapest "No" — the essential data for routing your trade to the best venue.

Side-by-side Order Books display real depth from both Polymarket and Kalshi, with bid and ask sizes at every price level. This is how you verify that the quoted spread is actually executable at the size you want to trade.

Each comparison view includes direct links to open the market on Kalshi or Polymarket for immediate execution.

Arbitrage Scanner

Find cross-platform opportunities before they close.

The Arbitrage Scanner is skreenr's most powerful conversion feature — and the one that pays for the subscription fastest.

skreenr continuously scans all matched markets across Polymarket and Kalshi to identify opportunities where buying "Yes" on one platform and "No" on the other produces a combined cost below $1.00 — meaning a guaranteed profit regardless of how the event resolves.

The scanner dashboard shows total opportunities found, the best current ROI, the average ROI across all opportunities, and the average spread. Sort opportunities by ROI, profit per contract, volume, or spread to match your strategy — whether you're optimizing for return, liquidity, or capital efficiency.

Click into any opportunity to see the complete arbitrage strategy:

The Strategy View lays out exactly which platform to buy "Yes" on, which to buy "No" on, the total cost per contract pair, profit per contract, and the guaranteed payout.

The Position Calculator lets you input a total stake and instantly see the optimal allocation across both platforms, the total investment required, and the guaranteed profit at that size.

Probability Over Time and Order Books from both platforms are included on every opportunity page, so you can assess execution feasibility — not just theoretical profitability — before committing capital.

Arbitrage Scanner is available on Trader ($19/mo) and Pro ($49/mo) plans. Free tier shows a teaser with blurred data.

Top Movers

See what moved. See how much. See it now.

The Top Movers feed ranks markets by the largest probability changes across both platforms. When a headline breaks and a market swings 15 points, you see it here — not 30 minutes later when you happen to check.

Filter by time window: 15 minutes, 1 hour, or 24 hours. Toggle between Gainers and Losers to focus on the direction that matters to your strategy. Filter by platform and category to narrow the feed to your areas of focus.

Each entry shows the market title, current probability, the magnitude of the move, the platform, volume, number of contracts, and time until resolution. Click through to the full market view for deeper analysis.

The Movers feed is the fastest way to answer the question every active trader asks throughout the day: what just happened?

Real-time movers with all time intervals available on Trader and Pro plans. Free tier shows 24-hour movers with a 10-minute delay.

The Trending page ranks markets by real-time price update frequency across configurable time windows: 1 minute, 5 minutes, 15 minutes, 30 minutes, or 1 hour. A market with 50 price updates in the last hour has active two-way flow — buyers and sellers are engaged, liquidity is present, and the market is alive. That's information worth having, even if the net price movement is small.

This is a signal you can't get from a simple movers feed. A market that hasn't moved much in price but has 37 updates is a market where informed participants are actively trading. Trending helps you find these markets before a directional move shows up on the movers board.

Full Trending with all time intervals available on Trader and Pro plans. Free tier is limited to the 1-hour view.

Watchlists

Track the markets you care about. Ignore everything else.

With 348,000+ markets across two platforms, you need a way to focus. skreenr's Watchlists let you organize the markets that matter to your strategy into custom groups — by category, by thesis, by event, or however you think.

Each watchlist shows live probabilities and recent price movement at a glance, so scanning your focus areas takes seconds rather than minutes of clicking through individual markets. Add or remove markets from any view in the terminal with a single click.

Build a "Politics 2028" watchlist, a "Fed Decisions" watchlist, a "Sports Weekly" watchlist, and a "Watching for Arb" watchlist — whatever maps to how you trade.

Free tier: 1 watchlist, up to 10 markets. Trader and Pro: unlimited watchlists, unlimited markets per list.

Recently Added

Be first to every new market.

New prediction markets launch constantly across both Polymarket and Kalshi. The first hours of a new market are often when probabilities are most mispriced — before the crowd arrives and liquidity deepens. Getting there early is a genuine edge.

skreenr's Recently Added feed surfaces newly launched contracts from both platforms, sorted newest first with category and platform filters. Markets show up within minutes of launch, with live probability data, contract count, and volume as they begin trading.

Whether it's a breaking-news political market on Polymarket or a new set of sports contracts on Kalshi, you'll see it here before you see it anywhere else.

Schedule

Never miss a resolution deadline.

The Schedule view shows every market closing today and in the coming days, including those marked "closing soon" with zero time remaining. This is essential for traders who need to know when their positions will resolve, when last-minute trading windows are open, and when new settlement data will hit their portfolio.

Filter by platform and category to see only the closings that matter to your book.

Alerts

Stop refreshing. Start getting notified.

Manual monitoring doesn't scale. You can't watch 348,000 markets. You can't refresh two platforms every five minutes. And you shouldn't have to.

skreenr's alert system lets you define exactly the conditions that matter to your trading strategy and get notified the moment they trigger.

Alert types include:

Price threshold alerts — get notified when a market crosses above or below a probability you set. "Tell me when this market crosses 70%."

Move magnitude alerts — get notified when any market moves more than a set number of points within a time window. "Tell me when anything moves more than 8 points in 30 minutes."

Spread alerts — get notified when the cross-platform spread on a matched market widens beyond your threshold. "Tell me when the Polymarket/Kalshi spread on this market exceeds 5 points."

New market alerts — get notified when a new market launches matching keywords you define. "Tell me when a new market launches containing 'Michigan' or 'Fed.'"

Delivery: Email and in-app notifications on Trader. Pro adds webhook/API delivery to Discord, Telegram, or any custom endpoint — so your alerts show up where you already work, not just inside skreenr.

Free tier: 3 basic price-threshold alerts (email only). Trader: 50 alerts across all types. Pro: 200 alerts with advanced types including volatility, multi-condition triggers, and webhook delivery.

Built for the Terminal Aesthetic

skreenr is designed to feel like a trading terminal, not a consumer app. The interface uses a dark terminal theme with accent green data highlighting, monospace typography for prices and data, and information-dense layouts that prioritize speed and scannability over visual flair.

Every view is built to answer a question fast: what moved, what's the spread, where's the opportunity, what's new. No decorative dashboards. No AI chat windows. Just data, context, and the tools to act on both.

Platform Coverage

skreenr currently aggregates real-time data from Polymarket and Kalshi — the two platforms that together account for roughly 79% of global prediction market volume. We're actively expanding coverage based on trader demand and platform accessibility.

Live data indicator confirms your connection status at all times. When you see the green dot, you're seeing live prices.