ArchArch.
Launch app

The first prediction market on Robinhood Chain.

Call the arch. Predict if BTC, ETH, SOL and top coins move up or down in the next 5, 10 or 30-minute Shot — settled on-chain, in seconds.

< 3s
Avg. settlement
12+
Coins tracked
~$0.00
Chain fees
99.9%
Uptime
Why Arch

Built for the speed of a candle

Sub-second execution

Robinhood Chain finality means your Shot lands before the next candle prints.

Fully on-chain

Every prediction, settlement and payout is verifiable on Robinhood Chain — no black boxes.

5, 10 or 30-min Shots

Short horizons. Fast feedback. Play a single Shot or chain them into Volleys.

Leaderboard glory

Season-based rankings with on-chain proof of your calls. Climb it, keep it.

Live oracle feeds

Streaming prices from major venues, normalized and settled by tamper-proof oracles.

Points now, $ARCH next

Warm up with Points. Convert to $ARCH the moment mainnet flips on.

Free · every hour · zero stake

A free Shot, every single hour.

A new coin takes the stage every hour. You get 30 minutes to call the direction — no stake, no risk. Nail it and grab a fat Points prize straight from the dev wallet. First platform on Robinhood Chain to do it.

Prize paid from dev pool
30m entry · 30m lock
BTC logo
This hour's coin
Rotates every hour
Live
Up
Down
Win → +1,000 Points dropped from the dev wallet.
Robinhood Chain memes

Predict the memes nobody else lists

First market to open Shots on native Robinhood Chain tokens — CASHCAT, WALLET, ARROW and the whole degen bench. Same 5/10/30 minute windows, live DEX prices.

CASHCAT logo
CASHCAT
Cash Cat
Live
WALLET logo
WALLET
Robinhood Wallet
Live
ARROW logo
ARROW
Arrow
Live
MARIAN logo
MARIAN
Lady Marian
Live
ROBIN logo
ROBIN
Robin Chain
Live
GUY logo
GUY
The Little Guy
Live
How it works

Three taps. One arch.

01

Pick a coin

Browse live markets on BTC, ETH, SOL and more. Sparklines update in real time.

02

Call the arch

Up or down? Choose your Shot: 5, 10 or 30 minutes. Signed straight to chain.

03

Collect on settle

Oracle prints the close, contract pays out. Your rank moves the moment it lands.

Native to Robinhood Chain

We're first — and we're built for it.

Robinhood Chain brings retail-grade UX to on-chain markets: fast blocks, tiny fees, oracle-grade price feeds. Arch Predictions is the first prediction market to ship on it — designed from day one around its throughput, fee model, and user base.

Block time~500ms
Median fee$0.0003
Oracle latency< 200ms
TPS ceiling10,000+

Your call. Every arch.

Join the first wave of predictors on Robinhood Chain. Free to play, on-chain forever.

Launch Arch