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BiOptimizers
bioptimizers.com · Shopping
UpdatedOct 2, 2026
The best rate at BiOptimizers right now is 20% back via BeFrugal, ahead of ShopBack at 7% — compared across 8 portals.
| Portals | Offer | Bonus | ||
|---|---|---|---|---|
 BeFrugal Cash back | 20% cash back | 20 cents / $ | $10 (new users) | Shop → |
 ShopBack Cash back | 7% cash back | 7 cents / $ | — | Shop → |
 Swagbucks SB points | 7x points | 7 cents / $ @1¢ per SB | 1,000 SB (new users) | Shop → |
 Rakuten Cash back | 6.5% cash back | 6.5 cents / $ | $10 (new users) | Shop → |
 Alaska Airlines Requires a free Alaska Atmos Rewards account. Points post straight to your Atmos balance — on top of any credit card rewards. Atmos points | 4x points | 6 cents / $ @1.5¢ per Atmos point | — | Shop → |
 USAA MemberShop Requires USAA membership (military-affiliated). Cash back is credited through your USAA account. Cash back | 5% cash back | 5 cents / $ | — | Shop → |
 United Airlines Requires a free United MileagePlus account. Miles post straight to your MileagePlus balance — on top of any credit card rewards. MileagePlus miles | 3x miles | 3.9 cents / $ @1.3¢ per United mile | — | Shop → |
 Active Junky Cash back | — | — | — |
Rates are checked daily against each portal's public listing. Miles and points are converted to effective value using MaxWorth's point valuations, so cash and miles portals are directly comparable. Rates can change at any time — always confirm the rate shown on the portal before checkout. "—" means the store is not currently offered on that portal.