Index Fun prediction market review

Status hint

Live

Venue type

daily Up/Down prediction markets attached to on-chain indexes

Outcome types

binary

Chains

Sonic

Mechanisms

continuous double auction

Last reviewed

2026-08-10

The creation flow is described as permissionless and wallet-based; no supported-country list is published.

The creation flow is described as permissionless and wallet-based; no supported-country list is published.

Index Fun appears in the launch corpus as a daily Up/Down prediction markets attached to on-chain indexes tied to binary outcomes. The chain field reads Sonic; readers should treat that as classification data pending confirmation in current documentation. Its status hint was live at review time; this is not a guarantee that deposits, markets, or withdrawals remain available. The retained research status reads "beta": The official app is labeled Beta and exposes index pages and wallet login; the official site describes native daily prediction markets.

Confirmation belongs at https://app.index.fun/explore, including whether Index Fun still offers the described product. A valid HTTPS response is not equivalent to verified trading availability. The claims below remain limited to what the cited material supports.

For Index Fun, this record preserves only the classifications binary, continuous double auction, and Sonic. It does not convert taxonomy into claims about launch maturity, regulatory treatment, liquidity, or product quality. This boundary keeps unknown attributes visible instead of smoothing them into confident prose.

Index Fun may apply geographic and account restrictions that are not captured here. Eligibility should be established from current official terms before any identity, wallet, or payment information is provided. Research summary: The creation flow is described as permissionless and wallet-based; no supported-country list is published.

Because Index Fun is marked live, verify what that label currently means: a public interface, limited beta, waitlist, archive, or full execution may each produce different user expectations. KYC summary: No identity flow is documented; official material says index creation uses a Web3 wallet with no paperwork.

For comparison, Index Fun carries binary and continuous double auction classifications. The official market rules must explain how positions are entered, priced, closed, cancelled, and resolved.

Index Fun's market title is not enough for due diligence. Read definitions, edge cases, postponement language, resolver authority, and appeal timing before taking a position. Settlement and resolution summary: Native Up/Down markets settle daily; the authoritative price feed, cutoff, and dispute process are not established.

The research record contains concrete cost information for Index Fun, without assuming that one rate applies to every product or jurisdiction. Retained fee evidence: Creating an index costs 10 USDC. Creators receive 30% of prediction-market fees; the trader fee rate is not published in the cited material.

Some custody evidence is documented for Index Fun; that does not remove smart-contract, counterparty, signer, bridge, or account-recovery risk. Retained custody evidence: Index creation deploys an on-chain vault; exact prediction-collateral and admin controls are not documented in the cited pages.

Index Fun should be approached as a risk-bearing venue, not a source of guaranteed probabilities. Its live hint can become stale and must be reconciled with current official notices. Documented limitations include: Trader fee rate is not disclosed in the cited pages., Daily settlement source and disputes are unclear., and The app remains labeled beta..

Revisit https://app.index.fun/explore before acting on Index Fun. Preserve relevant terms and market rules, confirm support contacts, and use a small test only after the custody and settlement path is understood. Priority evaluation checks include: Verify current Sonic contracts and audits., Confirm the trader fee rate before entering., Identify daily price source and cutoff time., and Review vault upgrade and withdrawal controls..

• Verify current Sonic contracts and audits.
• Confirm the trader fee rate before entering.
• Identify daily price source and cutoff time.
• Review vault upgrade and withdrawal controls.
• Confirm local eligibility for wallet-based access.
• Confirm that https://app.index.fun/explore is the current official domain for Index Fun.
• Compare the "live" hint with a dated official availability notice.
• Read restricted-jurisdiction, age, sanctions, and account-eligibility terms.
• Locate the complete fee schedule, including spreads, gas, deposits, and withdrawals.
• Identify custody, collateral, wallet permissions, and the withdrawal process.
• Verify how binary markets define evidence, cancellation, disputes, and settlement.
• Confirm authentic contracts, assets, and network support for Sonic.

Check current product, legal and technical documentation before relying on any dated fact in this profile.