These terms cover flipperstack.siringo.com and the Reseller Pro digest, both operated by Siringo Inc., 42 Broadway Suite 1227-631, New York, NY 10004. Contact: hello@siringo.com.
Reviews, prices, fees, lot listings, estimates and max-bid figures are research to help you make your own decisions. They are estimates only, checked as of the date shown on each page, and can be out of date. They are not financial, tax or legal advice. Always confirm details on the provider's or auctioneer's own page before you buy or bid. FlipperStack is not affiliated with the platforms, auction houses or agencies it mentions unless a page says so.
Lots in the digest come from sources that permit reuse (for example the U.S. General Services Administration's public GSA Auctions data) or from sellers who share them with us. Bidding, payment, inspection and pickup happen on the seller's site under the seller's terms. We do not run auctions and are not a party to any sale.
Paid plans are sold through Gumroad, which acts as merchant of record and handles payment and sales tax. You can cancel anytime in your Gumroad Library, or by emailing hello@siringo.com (see Cancellation). Access continues until the end of the period you paid for, and then stops. If the digest is not useful to you, email us within 14 days of your first payment for a full refund. Renewals after that are not refunded, but you can cancel before the next renewal. We answer support email within 24 hours on business days.
Paid digest memberships renew automatically every month (or year) at the price shown until you cancel. To cancel billing, open your Gumroad Library (https://app.gumroad.com/library), choose the membership, then Manage membership, then Cancel membership. Or email hello@siringo.com with the subject "Cancel" and we cancel it for you within 1 business day. Your access continues to the end of the period you have paid for, and you won't be charged again. Unsubscribing from our emails does not cancel billing.
These apply to every paid placement on FlipperStack: Featured listing ($49 per month), Category sponsor ($149 per month) and New listing review ($99 one-time). Monthly plans are billed in advance and renew automatically each month until you cancel; annual plans (2 months free) renew yearly, with a reminder 15 to 45 days before. Cancel anytime by emailing hello@siringo.com (handled within 1 business day) or through the Stripe customer portal link in your receipt. Your placement runs to the end of the paid month, then stops; past months are not refunded. We refund in full if we haven't published your placement yet, and credit or refund the days if it is down for 3 or more days because of us. The $99 New listing review is refundable in full until the review is published; if we miss the 5-business-day window you may cancel for a full refund. Paid placements are always labelled "Featured" or "Sponsored", and payment never buys rankings, verdict text or the removal of a competitor. Full terms: sponsor and featured-listing terms.
Joining the waitlist means you agree that we may email you when new samples and the founding launch are ready. You can unsubscribe at any time by replying to any email or writing to hello@siringo.com. See our privacy policy.
The digest and downloads are for your personal or internal business use. Please don't resell or redistribute them.
We may update these terms. The date at the bottom of each page shows when the site was last updated.