Dev tools · alternatives · 2026
24 alternatives to Event Contract Arbitrage Calculator
Find & secure risk-free profits on Kalshi, Polymarket and RH
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Event Contract Arbitrage Calculator launched in 2024; newer entries below may have overtaken it.
- 1
Arbitraj.io▲94Trade arbitrage opportunities across 35+ crypto exchanges💰📈
2018 · coinarbitrage.io · its alternatives →
- 2
Automated arbitrage across Polymarket & Kalshi markets
May 2026 · arbitrage-agent.com · its alternatives →
- 3
Free Surebet Calculator and Odds Finder
2025 · arbitragecalculator.com · its alternatives →
- 4
2021 · github.com · its alternatives →
- 5
Free calculators and a live radar for prediction markets
Aug 2026 · fluxrbot.com · its alternatives →
- 6
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.
2025 · predictionhunt.com · its alternatives →
- 7
Pure Prophet▲64Make guaranteed money from prediction markets
Apr 2026 · pureprophet.ai · its alternatives →
- 8
Track and analyze prediction markets from Polymarket, Kalshi, PredictIt, and more. Real-time odds, price alerts, and comprehensive market data all in one place.
Jan 2026 · prediktion.market · its alternatives →
- 9
Find risk-free spreads across Polymarket, Kalshi & PredictIt
Aug 2026 · apify.com · its alternatives →
- 10RT
2017 · coinsrage.com · its alternatives →
- 11
Preduck▲1Prediction Market Aggregator for Polymarket, Kalshi Odds
Jul 2026 · preduck.com · its alternatives →
- 12
It works by finding negative cycles in a graph
2024 · github.com · its alternatives →
- 13
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 · its alternatives →
- 14
CRYPTO TRADING BOT
2018 · cryptocatbot.com · its alternatives →
- 15
- 16
Free crypto trading tools done right — no signup, no ads
Aug 2026 · ryok.net · its alternatives →
- 17
[Website](https://www.sharkshimi.com/) *What most crypto arbitrage trading platform get wrong…* - *Inaccessible* — Existing platforms are either behind paywalls, subscriptions, tiered-systems, or authentication and authorization systems... - *Lack of opportunities* — Current solutions only cater to a specific type of crypto arbitrage (cross-exchange)... - *Really profitable?* — Existing platforms make it hard to understand whether crypto arbitrage opportunities are profitable as fees are not accounted for... - *Unintuitive UIUX* — Current solutions can be hard to learn and…
2025 · sharkshimi.com · its alternatives →
- 18
All-in-One AI Copilot for prediction markets.
Feb 2026 · polypredict.ai · its alternatives →
- 19
ContractTax.com: Taxes, P&L & Sharp Score for Kalshi Traders
Jun 2026 · contracttax.com · its alternatives →
- 20
Automated weather trading bot for Kalshi prediction markets
Mar 2026 · predictandprofit.gumroad.com · its alternatives →
- 21
- 22
- 23
Stop tab-switching, one dashboard for all your Polymarket
May 2026 · polyanalytics.co · its alternatives →
- 24
Insightful analysis, instant results.
2023 · marketxls.com · its alternatives →
Also compare
Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →