Haselrig TechnologiesLimited Liability Company

iPhone practice simulator

15-Minute Markets.

Practice short crypto market rounds with live market data and practice money. Pick a side, place an order, and follow the round to its official result.

Available on the App Store

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15-Minute Markets app icon

How it works

Real rounds. Real prices. Practice money.

Every 5 or 15 minutes a new Up/Down round opens for Bitcoin, Ethereum, Solana and XRP. Decide whether the price will finish above or below where the round started, buy practice shares at the live market price, and watch the round play out. Shares on the winning side pay $1 each; the other side pays nothing.

01

Pick a round

Choose a 5- or 15-minute window and one of four coins. The countdown, price to beat and live price are right there.

02

Call Up or Down

Buy with a market order or set a limit price. Sell early to cash out at the current bid if you change your mind.

03

See the result

Rounds settle on the official result a few minutes after they close, and every call is recorded in your history and stats.

Practice only

No real money, ever.

15-Minute Markets is a learning tool. It uses public market data to simulate rounds, but nothing is ever bought or sold on your behalf.

  • 01No deposits, wallets, withdrawals or real trades
  • 02Practice funds cannot be bought, sold or redeemed
  • 03No prizes, in-app purchases, subscriptions or ads

Features

Everything you need to practice well.

Learn how short-duration markets move, how orders fill against a live order book, and how your own calls hold up over time.

  • Live market data

    Live prices, order books and official outcomes for every round, with a price chart and the price to beat.

  • Market and limit orders

    Buy at the market, rest a limit order, or cash out early. Fills walk the real order book.

  • Detailed stats

    Net result, win rate, streaks, equity curve and breakdowns by coin, round length and side.

  • Full call history

    Sort and filter every call, then export your records as CSV or JSON.

  • Optional leaderboard

    Share your practice results under a generated alias. No email, password or real name needed.

  • Round alerts

    Optional reminders to check a round after it closes, if you allow notifications.

Details

Good to know.

App Store name
15-Minute Markets: Crypto
Platform
iPhone
Requires
iOS 17 or later
Price
Free, with no in-app purchases or ads
Age rating
18+ (simulated gambling)
Status
Available on the App Store
Publisher
Haselrig Technologies LLC
Affiliation
Not affiliated with, endorsed by or sponsored by Polymarket

Support

Answers about rounds, orders, cash-outs, the leaderboard and your data.

Get help

Privacy Policy

What stays on your device, what the optional leaderboard shares, and how to delete it.

Read the privacy policy

Questions about 15-Minute Markets?

Send a note about the app or the leaderboard, and we’ll respond during U.S. business days.

Contact support