Support

Check that you are signed into iCloud in Settings → [Your Name]. If iCloud is signed out, Apple cannot return an identity token. Then quit Coin Cup, swipe it away from the app switcher, and reopen.

Still stuck? Send us the device model and iOS version — we'll check the auth logs for your token issue timestamp.

This usually means iOS opened the Google flow in a third-party browser instead of the in-app sheet. Make sure Safari is set as the default browser, kill the app, and retry. If you're on a managed (MDM) device, your admin may have blocked Google's OAuth flow.

Open Coin Cup → Profile → Edit profile. Pick a new nickname (2–30 characters, letters / digits / underscore / hyphen) and tap Save. Avatars are uploaded as a single JPEG — pick from your photo library or take a new shot.

Open Coin Cup → Profile → Settings → Delete account, then confirm. We remove your profile, prediction history, balances, and any ledger entries tied to your user id within 30 days. If you can't reach the in-app option, email support from the address linked to your Apple ID or Google account and we'll do it manually.

Coin Cup uses pari-mutuel math, the same model used at horse-racing pools. Your potential payout is the share of the losers' pool that matches your share of the winners' pool, after a small house and creator cut (5% + 3% by default). Every time another fan stakes coins, the odds shift. We snapshot the odds at the moment your bet is placed so you can see what they were — but the final payout uses the pool as it stands when predictions close.

For 2026 World Cup matches preloaded by Coin Cup, the result is settled on the score at the end of 90 minutes of regulation play. Extra time and penalty shootouts do not count. So a 1-1 match that goes 2-1 in extra time still settles as a draw.

The 2026 tournament is hosted across the US, Canada, and Mexico, with the bulk of matches in the US Eastern band. Anchoring the schedule on a single time zone means creators and players share the same window, so "predictions close at 6 PM" means the same thing for everyone.

Pull the prediction screen down to refresh. If the in-app balance still looks off, open Profile → My ledger → Coins. Every stake, payout, and refund is recorded there with a timestamp. If a row is missing or has the wrong amount, screenshot the page and email it to us with your nickname.

Coin Cup verifies every purchase server-side against Apple StoreKit before crediting gems, so transient network issues can leave a purchase in a "paid but not credited" state for a minute or two. The fix:

1. Open Shop → Buy gems.
2. Tap Restore purchases.
3. Wait 30 seconds, then check your gem balance in the toolbar.

If it still hasn't credited after a restart, email support with your Apple ID transaction id (visible in Settings → [Your Name] → Subscriptions → Purchase history). We can replay the verification manually within hours.

Coin Cup gem packs are consumable in-app purchases, so refunds are handled directly by Apple. Open reportaproblem.apple.com, sign in with your Apple ID, and submit the request. Apple typically decides within 48 hours. If they grant the refund, the corresponding gems are revoked from your account automatically once we receive the refund notification from Apple.

No. Coins, gems, and credit score are per-account licenses with no transfer mechanism — by design. This keeps the game free of secondary markets and prevents the app from being misused as a payment rail.

The prompt is Apple's App Tracking Transparency (ATT) flow. It controls whether AdMob — which serves the optional rewarded video ads — can use your iOS Advertising Identifier (IDFA) for personalization. Decline and rewarded ads are still available, just non-personalized. You can change the answer any time in iOS Settings → Privacy & Security → Tracking.

No. Rewarded video ads are only shown when you tap "Watch ad +20 coins" on the profile screen. They never appear during placement, settlement, or anywhere in a match flow.

Open iOS Settings → Coin Cup → Notifications and confirm both Allow Notifications and Alerts are on. Then open Coin Cup once with a working network connection so the app can re-register its push token with our backend.

Notifications you can receive: settlement alerts (your prediction settled), closing-soon reminders for games you created, dispute filed against a result you submitted, and result-corrected alerts when admin fixes a wrong call.

Open Profile → Settings → Notifications in the app and toggle off any category you don't want. Or turn them all off at the iOS level (Settings → Coin Cup → Notifications → Allow Notifications).

Open the game in question. If the 24-hour challenge window is still open, you'll see a Dispute result button. Pick the option you believe is correct, write a short reason, and attach a link to a public source (a news article, an official scoreline). Manager moderators review every dispute within the window.

Winning predictions settle once the 24-hour challenge window closes. During the window your prediction shows Awaiting settlement. Once the window closes (and no dispute is upheld), the payout is credited to your balance and you'll receive a push notification.

Either a community dispute was upheld during the 24-hour window, or our admin team applied a correction (rare — usually for a clearly wrong creator submission). On a correction, all previous payouts are reversed and re-settled against the new result. The change is recorded in your ledger as a reversal entry plus the new game_payout / game_refund, so the trail is auditable end-to-end.