Alternatives

Products that do what Event Contract Arbitrage Calculator does

Find & secure risk-free profits on Kalshi, Polymarket and RH

1. 1
   Arbitraj.io▲94

   Trade arbitrage opportunities across 35+ crypto exchanges💰📈

   2018

2. 2
   Arbitrage Agent▲2

   Automated arbitrage across Polymarket & Kalshi markets

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3. 3
   Arbitrage Calculator▲13

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4. 4ID
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5. 5
   FluxrBot Tools▲1

   Free calculators and a live radar for prediction markets

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6. 6PC
   PredictionHunt – Compare probabilities across prediction markets▲12

   Hey HN - my friend and I built Prediction Hunt, a site that aggregates data from prediction markets like Kalshi, Polymarket, and PredictIt into one simple dashboard. It updates every few minutes, shows probabilities for each event, and even highlights arbitrage opportunities when markets disagree. I made it after getting tired of flipping between tabs just to see how each market was pricing the same question. Would love feedback on the product, data accuracy, and any ideas for what you'd want to see next.

   Oct 2025 · predictionhunt.com

7. 7
   Pure Prophet▲64

   Make guaranteed money from prediction markets

   Apr 2026 · pureprophet.ai

8. 8
   Sharkshimi [Crypto Arbitrage Trading]▲10

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9. 9
   Prediction Market Arb Scanner▲1

   Find risk-free spreads across Polymarket, Kalshi & PredictIt

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10. 10
    Preduck▲1

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    Jul 2026 · preduck.com

11. 11AG
    A graph based arbitrage calculator▲5

    It works by finding negative cycles in a graph

    2024 · github.com

12. 12QO
    Quantifying opportunity cost with a deliberately "simple" web app▲28

    Hi HN, A while ago I had a mildly depressing realization. Back in 2010, I had around $60k. Like a "responsible" person, I used it as a down payment on an apartment. Recently, out of curiosity, I calculated what would have happened if I had instead put that money into NVIDIA stock. I should probably add some context. For over 10 years I've worked as a developer on trading platforms and financial infrastructure. I made a rule for myself - never trade on the market. In 2015, when Bitcoin traded about 300 usd, my brother and I were talking about whether it was a bubble. He made a bold claim that…

    Feb 2026 · shouldhavebought.com

13. 13
    GhostKalshi▲7

    Stop trading blind. Predict 15-min BTC Kalshi odds.

    Jun 2026

14. 14
    RYOK Free Crypto Trading Calculators▲1

    Free crypto trading tools done right — no signup, no ads

    8d ago · ryok.net

15. 15
    PolyPredict AI▲23

    All-in-One AI Copilot for prediction markets.

    Feb 2026 · polypredict.ai

16. 16
    ContractTax▲4

    ContractTax.com: Taxes, P&L & Sharp Score for Kalshi Traders

    Jun 2026 · contracttax.com

17. 17
    Predict & Profit▲2

    Automated weather trading bot for Kalshi prediction markets

    Mar 2026 · predictandprofit.gumroad.com

18. 18
    GitHub

    polymarket arbitrage trading bot

    Apr 2026 · github.com

19. 19
    ArbitraChain▲15

    Plateforme d'arbitrage multi-marchés

    2025

20. 20
    Polyanalytics▲4

    Stop tab-switching, one dashboard for all your Polymarket

    May 2026 · polyanalytics.co

21. 21
    PaperPredict▲3

    Paper trade the Kalshi prediction market. No accounts, free.

    Jul 2026 · paperpredict.ivgeni.com

22. 22
    Triangular Arbitrage Bot Development▲7

    Crypto Arbitrage Made Easy

    2025

23. 23
    Polymarket Alerts▲12

    Instant alerts for trades, price moves, and whale activity

    Nov 2025 · polymarket-alerts.com

24. 24
    ArbitrageScanner.io▲12

    Best ecosystem of Web3 instruments based on AI

    2025

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