Terms of Service
Version 2026-09-01 · effective 2026-09-01
These Terms are an agreement between you and Drupefruit LLC (“Drupefruit,” “we,” “us”), a California limited liability company, and govern your use of HoundSonar™. By creating an account you agree to them. If you do not agree, do not use the service.
1. What HoundSonar does — and what it does not
You photograph a Costco receipt. We read it, and for the 30 days Costco’s price-adjustment policy allows, we watch what you bought against promotions we know about. If something drops, we tell you the item, the amount, and the date you have to ask by.
We tell you what to ask for. Costco decides whether you get it. Price adjustments are granted at Costco’s discretion under Costco’s own policy, which Costco can change or withdraw at any time. We are not a party to that transaction, we are not your agent, and we never contact Costco on your behalf. You go to the membership desk yourself.
We also cannot promise to find everything. Costco does not publish a price feed; we work from the warehouse savings book and from what members’ own receipts show. Some price drops will be missed.
2. Claims and deals are different things
A claim comes from a posted promotion and is what you take to the desk.
A deal comes from other members’ receipts. It means someone was discounted on that item at a register. It does not mean the shelf price changed — it may be a markdown on particular stock — and nothing is owed on it. Deals are information about what is currently cheap, offered so you can decide whether to buy again. Do not take one to the membership desk expecting money.
3. Eligibility and accounts
You must be 18 or older and have a valid Costco membership. One account per person. You are responsible for what happens under your account and for keeping access to your email secure — everything is tied to that address.
4. Free receipts
A new account can scan six receipts free. This is a one-time allowance: it does not reset each month. Those six are watched for their full 30 days and we will tell you about anything we find, whether or not you ever subscribe.
Free service is not guaranteed, and we may change or end it.
5. Subscriptions and billing
A subscription is $14.99 per year, charged through Stripe.
Automatic renewal
Your subscription renews automatically each year at the then-current price until you cancel. We will remind you before a renewal charge and before any price change, and a price change never applies to a term you have already paid for.
Canceling
You can cancel at any time, in the app, in as few steps as it took to subscribe. No email, no phone call. Canceling stops the next renewal; your subscription runs to the end of the term you paid for.
If you lapse
Receipts you have already scanned keep being watched until their 30-day windows close, because those windows opened while you were paying. You will still be told what we find. New scans require an active subscription.
Refunds
Subscriptions are non-refundable, except where the law requires it or we made a billing mistake — a duplicate charge, or one after you canceled. The six free receipts above are the trial: a full 30 days of real results before you ever pay. Canceling stops the next renewal, and you keep what you already paid for until the term ends.
Scan limits
A subscription includes a monthly scan allowance, shown in the app. It is set well above what a normal shopper uses and exists to bound automated abuse. We may adjust it, and we will tell you if we do.
6. Referral points
If you subscribe and someone you referred also subscribes, you earn two points. One point is one dollar off your renewal, and five points — $5.00 — is the most any single renewal can take, however many people you refer.
Points above that are not lost: they stay in your account and apply to the following renewal. Points are points. They are not cash, cannot be withdrawn or transferred, never reduce an invoice to nothing, and expire if you close your account. We may withhold or reverse points that appear to come from self-referral or automation.
7. AI reading, and your part in it
Receipts are transcribed by an AI model, and we verify each transcription against the receipt’s own printed totals before it becomes a claim. That catches most errors; it does not catch all of them. Check the figure against your own receipt before you ask for anything. If a read does not verify, we tell you rather than showing you a number.
8. Your content
Your receipts and the data read from them are yours. You grant us the license needed to store and process them so the service can work, including sending the image to our AI provider to be read. That license ends when you delete the content or close your account, except for the anonymous receipt fingerprints and aggregated price data described in the Privacy Policy.
9. Acceptable use
Do not submit receipts that are not yours, submit fabricated or altered receipts, automate the service, resell it, or attempt to circumvent scan limits or the free allowance. Do not attempt to access another member’s data. If you find a security flaw, tell us before you tell anyone else and we will not pursue you for finding it in good faith.
10. Not affiliated with Costco
HoundSonar is not affiliated with, endorsed by, or sponsored by Costco Wholesale Corporation. “Costco” and “Kirkland Signature” are trademarks of their respective owners and are used here only to describe what this service does.
11. Disclaimers
THE SERVICE IS PROVIDED “AS IS” AND “AS AVAILABLE,” WITHOUT WARRANTIES OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT. We do not warrant that the service will be uninterrupted or error-free, that every price drop will be found, or that any price adjustment will be granted.
12. Limitation of Liability
TO THE MAXIMUM EXTENT PERMITTED BY LAW, DRUPEFRUIT LLC SHALL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, INCLUDING LOSS OF PROFITS, DATA, OR GOODWILL, ARISING FROM YOUR USE OF THE SERVICE. OUR TOTAL LIABILITY FOR ANY CLAIM SHALL NOT EXCEED THE GREATER OF THE AMOUNT YOU PAID US IN THE TWELVE (12) MONTHS PRECEDING THE CLAIM OR TWENTY U.S. DOLLARS ($20).
13. Indemnification
You agree to indemnify and hold Drupefruit LLC, its officers, members, employees, and affiliates harmless from any claims, damages, losses, or expenses (including reasonable legal fees) arising from your use of the service, content you submit, your violation of these Terms, or your violation of any law or third-party right.
14. Termination
You may close your account at any time from the account menu, and it is immediate. We may suspend or close an account that violates these Terms. If we close your account other than for a violation, we refund the unused portion of your term.
15. Governing law and disputes
These Terms are governed by the laws of the State of California, without regard to conflict of law rules. Before filing anything, contact us — most disputes are a misunderstanding and we would rather fix it. Any dispute not resolved that way shall be brought in the state or federal courts located in California, and you and we consent to their jurisdiction.
16. General
These Terms are the entire agreement between you and Drupefruit regarding the service. If any provision is held unenforceable, the rest remains in force. Our failure to enforce a provision is not a waiver of it. You may not assign these Terms; we may assign them in connection with a merger or sale of assets.
17. Changes
If we change these Terms we will update the version at the top and ask you to accept the new version in the app before it takes effect for you.
18. Contact
Drupefruit LLC · support@houndsonar.com