Mamba Limited sister sites
These 2 brands all point to Mamba Limited as operator in their terms or sweepstakes rules. Shared ownership tends to mean shared policies, though state lists and bonuses don’t always match.
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Editor Rating★ 4.2/5Overall Score 63/100Market Signal46Cash minimum100 SCStates36/51 - 2
Editor Rating★ 4.2/5Overall Score 61/100Market Signal42Cash minimum100 SCStates36/51
Spinfinite vs Zonko: Mamba Limited sweepstakes casinos
Mamba Limited, based in the Isle of Man, runs Spinfinite and Zonko. They share an 18+ age rule, the same 36-jurisdiction footprint, a 100 SC cash minimum paid by ACH and a 3 SC mail-in request; payout timing and limits are where they differ. They're ranked by our Overall Score, which weighs verified terms and online reach equally, so the order isn't a verdict on their rules alone.
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SpinfiniteRedemptions within 72 hours
Speed is Spinfinite's case. After a pending period of up to 3 business days, its FAQ says redemptions typically come through within 72 hours, weekends included, and you can ask for one every 48 hours. The mail-in card needs a 13-digit Sweepstakes Request Code and goes to a PO box in Manchester, New Hampshire. There's no published free sign-up amount; the welcome offer needs a $20 purchase.
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ZonkoHard caps, 28-day mail window
Zonko puts hard numbers on its limits: $2,000 in redemptions a day and $40,000 per rolling 30 days, with each Sweepstakes Coin worth $1. The rules allow up to 10 days to pay, though its FAQ says approval typically comes within 72 hours. Its 3 SC mail-in card has to reach the sponsor's PO box within 28 days of generating the request code.
Spinfinite and Zonko share an operator, a minimum and a state list, so payout timing and limits are the main differences. Check both brands' current rules before you purchase Gold Coin packages. See how we rate casinos.
Frequently asked questions
- Are Spinfinite and Zonko run by the same company?
- Yes. Both are Mamba Limited brands, based in the Isle of Man. They accept players from 18 or the state age of majority in the same 36 of 51 jurisdictions, and both start cash prizes at 100 SC paid by ACH bank transfer.
- Which one pays prizes faster?
- Spinfinite's FAQ says redemptions are typically processed within 72 hours, including weekends. Zonko's rules allow up to 10 days, though its FAQ says approval typically comes within 72 hours. Spinfinite allows one request every 48 hours, and Zonko caps redemptions at $2,000 a day.
- Do Spinfinite and Zonko offer free sign-up coins?
- Neither publishes a no-purchase sign-up amount. Spinfinite offers a daily login bonus, and its welcome offer requires a $20 purchase. Both credit 3 SC per mailed request card, and free Sweepstakes Coins need one playthrough before they count toward redemption.
Reviewed by the SweepsCheck editorial team · Oct 14, 2026