How each works
RxDiff
Search the exact medication, form, strength, quantity, and ZIP code to compare available pharmacy price estimates. Select Get Coupon and show the coupon to the pharmacist before paying. RxDiff is not a pharmacy or healthcare provider.
Optum Perks
Search Optum Perks for the exact medication and location, then print, text or email the pharmacy coupon and show it at checkout. Get a new coupon at each fill and have the pharmacist check its codes before purchase. Optum Perks is a discount program, not OptumRx prescription insurance benefits. This page does not substitute OptumRx plan-benefit information for Optum Perks.
Cost
RxDiff
RxDiff public search is free and requires no account or insurance. A pharmacy's final prescription charge is separate; confirm it before paying.
Optum Perks
Optum Perks coupons require no membership, fee or personal information to get started; no account or paid subscription is required for the coupon service. The prescription itself is not free: confirm the pharmacy's payable charge. Separate online-care or prescription-delivery service fees, subscriptions and account requirements are not verified here; do not extend coupon terms to those services.
Where accepted
RxDiff
A returned result identifies a pharmacy location. Confirm stock, coupon acceptance, and the final price with that location; availability varies by medication and location.
Optum Perks
Optum Perks lists participating chain and independent pharmacies nationwide and in Puerto Rico, including CVS, Walgreens, Kroger, Costco and Walmart. An independent-pharmacy coupon may show a price range rather than one store's price; confirm acceptance and the final price with that store. Discounts are offered on most prescription medications, not a promise of every product. Coupon acceptance does not establish eligibility for separate delivery or online-care services.
Who it suits
RxDiff
People comparing pharmacy estimates before filling a prescription. Pill identification and drug interaction tools are also available; they do not replace advice from a pharmacist or doctor.
Optum Perks
People comparing a prescription coupon with cash or insurance prices at a participating pharmacy without joining a membership. Insured people, including Medicare Part D members, can use the coupon instead of insurance, but cannot combine them; coupon spending does not count toward the insurance deductible. Confirm the exact prescription rather than assuming this is the cheapest option.
Compare before each fill
Match the medication, brand or generic product, form, strength, quantity, pharmacy, and ZIP code. For shipping options, compare the complete delivered total and fulfillment terms. No current competitor quote or savings percentage is asserted here.
Frequently Asked Questions
Is Optum Perks cheaper than RxDiff?
No permanent price winner is established. Compare current quotes and applicable fees for the same prescription and location, then confirm the final amount with the pharmacy or provider.
What does it cost to use RxDiff and Optum Perks?
RxDiff public search is free and requires no account or insurance. A pharmacy's final prescription charge is separate; confirm it before paying. Optum Perks: Optum Perks coupons require no membership, fee or personal information to get started; no account or paid subscription is required for the coupon service. The prescription itself is not free: confirm the pharmacy's payable charge. Separate online-care or prescription-delivery service fees, subscriptions and account requirements are not verified here; do not extend coupon terms to those services.
Where can I use Optum Perks?
Optum Perks lists participating chain and independent pharmacies nationwide and in Puerto Rico, including CVS, Walgreens, Kroger, Costco and Walmart. An independent-pharmacy coupon may show a price range rather than one store's price; confirm acceptance and the final price with that store. Discounts are offered on most prescription medications, not a promise of every product. Coupon acceptance does not establish eligibility for separate delivery or online-care services.
Can I combine a discount price with insurance?
Discount options generally apply instead of insurance for a fill, not in combination with it. Compare the applicable insurance and discount prices and ask the pharmacist which option applies.
Sources and further reading
Related guides
Compare your exact prescription · All comparisons
Medical Disclaimer: This content is informational, not medical advice. RxDiff is not a pharmacy or healthcare provider. Confirm medication details, availability, and final prices with a pharmacist or prescriber.
