The rules, plainly

Last updated October 1, 2026

Using ListSync

These terms are an agreement between you and ListSync ("we", "us"). By creating an account or using the app you agree to them and to our Privacy Policy. You must be 18 or older to use ListSync. If you use ListSync for a business, you agree on its behalf.

If you downloaded ListSync from the App Store, Apple's Licensed Application End User License Agreement also applies. If these terms and Apple's disagree, these terms apply, except where Apple's terms say otherwise.

Your listings are yours, and your responsibility

You own the photos, text and prices you add. You give us permission to store, process and send them only to run ListSync for you: writing listings, syncing your devices and posting where you choose.

You're responsible for everything you list and sell, including that it's accurately described, that you have the right to sell it, that it's legal where you sell it, and that it's allowed on each marketplace. Don't use ListSync to list stolen, counterfeit, recalled, dangerous or prohibited items, to mislead buyers, or to spam.

The marketplaces' own rules

ListSync works with your own accounts on Facebook Marketplace, eBay, Poshmark, Mercari, OfferUp, Nextdoor, Craigslist and others. When it posts, edits, marks sold, deletes or reads messages, it does so on your behalf, in your account, when you ask it to.

Each marketplace has its own terms and policies, which can limit automated tools, how often you post, what you can sell and how you talk to buyers. You agree to follow them. Marketplaces can change their websites or rules, refuse a listing, or restrict or close an account at any time, and we don't control that. We're not responsible for marketplace decisions, including removed listings, fees, or restricted or suspended accounts.

ListSync is an independent app. It isn't affiliated with, endorsed by or sponsored by any marketplace. Marketplace names and logos belong to their owners and are used only to show where your listings go.

AI-written text

ListSync uses AI to write titles, descriptions and prices, pick categories, read price stickers, and fill in marketplace details. AI can be wrong: it can misidentify an item, get a detail or price wrong, or word something badly. Check listings before relying on them. You're responsible for what's posted and sent from your accounts, including anything ListSync writes that you let go out. Suggested prices are estimates, not appraisals.

Your chats

If you save your Messenger chats PIN, it stays on your device and is used only to unlock your own chats (see the Privacy Policy).

Subscriptions and the free trial

Some features need a paid subscription. Prices, what each plan includes and any free trial are shown in the app before you buy. Payment is taken by Apple through your Apple Account. Subscriptions renew automatically unless you cancel at least 24 hours before the end of the current period. Manage or cancel in your iPhone's Settings → your name → Subscriptions. If a free trial is offered and you don't cancel before it ends, the subscription starts. Refunds are handled by Apple under its policies. Plan limits, such as listings per month, may change; we'll tell you in the app before a change affects a subscription you've already paid for.

Your account

Keep your devices and sign-in secure; you're responsible for what happens in your account. You can delete your account at any time in Profile → Settings → Delete account. We may suspend or close an account that breaks these terms, harms other people, or puts ListSync or the marketplaces at risk. If we do, we'll tell you why where we can.

Items you can't list

Don't use ListSync to list or sell:

• illegal drugs, drug paraphernalia, or prescription medicines;
• guns, ammunition, gun parts, explosives, or other weapons the law or the marketplace restricts;
• stolen goods, or anything you don't have the right to sell;
• counterfeit or replica items, or anything that copies someone else's brand, design or work;
• recalled products, or hazardous materials and chemicals;
• alcohol, tobacco, vapes, or cannabis products;
• fake documents or IDs, or accounts, gift cards or tickets sold against their own rules;
• animals, human remains or body parts;
• adult or sexually explicit material;
• services that need a license you don't have;
• anything else illegal where you or the buyer are, or banned by the marketplace you post to.

Each marketplace has its own list too, and its rules apply on top of these. We may remove listings from ListSync, or suspend or close your account, if you break these rules or the law.

What you can't do

Don't copy, resell or reverse-engineer ListSync; interfere with our servers; get around plan limits; use someone else's account without permission; or use ListSync to break the law or anyone's rights.

Copyright complaints

ListSync doesn't publish listings on its own site. It posts them to the marketplaces you choose, under your account, so the fastest way to remove a listing that copies your work is to report it to that marketplace. If you believe ListSync itself is storing or showing material that infringes your copyright, send us a notice through the Support page that includes: your name and contact details; the work you say is being copied; where it appears; a statement that you believe in good faith the use isn't authorized; a statement, under penalty of perjury, that your notice is accurate and that you own the right or are authorized to act for the owner; and your physical or electronic signature. We'll remove material that infringes, and close the accounts of people who repeatedly infringe. If your material was removed and you believe that was a mistake, you can send us a counter-notice with the same details.

If your actions lead to a claim against us

To the extent the law allows, you agree to defend and indemnify ListSync and its owners against claims, damages, losses and costs (including reasonable lawyers' fees) brought by someone else that come from: what you list, sell or say through ListSync; your breaking these terms or a marketplace's rules; or your breaking the law or anyone's rights. We'll tell you about any such claim and may take part in the defense with our own lawyer.

Changes to ListSync

Marketplaces change their websites often, so a posting, editing or messaging feature can stop working until we update the app. We work to fix these quickly, but we can't promise every feature works on every marketplace at all times. We may add, change or remove features.

Disclaimers

ListSync is provided "as is" and "as available". To the extent the law allows, we don't make promises beyond those in these terms, including that ListSync will be uninterrupted or error-free, that any listing will sell, or that AI output will be accurate.

Limit of our liability

To the extent the law allows, we're not liable for lost sales, lost profits, lost data, marketplace fees, or restricted or closed marketplace accounts, or for indirect or consequential losses. Our total liability to you for any claim is limited to the amount you paid us for ListSync in the 12 months before the claim, or $50 if you haven't paid. Some places don't allow these limits, so they may not apply to you. Nothing here limits rights you have under law that can't be waived.

Governing law

These terms are governed by the laws of the United States and of the state where ListSync's owner is organized, without regard to conflict-of-law rules.

Settling disputes: arbitration and no class actions

Please read this section carefully. It affects your rights.

Talk to us first. Before bringing a claim, contact us through the Support page and describe it. We'll both try in good faith to settle it within 60 days.

Arbitration. If we can't settle it, you and ListSync agree that any dispute about ListSync or these terms will be decided by binding individual arbitration, not in court, under the Consumer Arbitration Rules of the American Arbitration Association (AAA). The Federal Arbitration Act applies to this section. The arbitration can happen by video or phone, or in the county where you live. We'll pay the AAA filing and arbitrator fees beyond what you'd pay to file in court, unless the arbitrator finds your claim frivolous.

Small claims. Either of us can instead bring an individual claim in small claims court, if it qualifies.

No class actions. Claims can only be brought individually, not as a plaintiff or class member in any class, group or representative action, and an arbitrator can't combine claims from different people. If this class-action waiver is found unenforceable for a claim, that claim goes to court instead, not to class arbitration.

Opting out. You can opt out of this arbitration agreement within 30 days of first accepting these terms by sending us a message through the Support page with your name, the email on your ListSync account, and that you're opting out of arbitration.

Anything not sent to arbitration will be decided in the state or federal courts that have jurisdiction over ListSync, and you and ListSync agree to their jurisdiction.

Changes to these terms and contact

If these terms change in a meaningful way we'll update the date above and let you know in the app. Continuing to use ListSync after that means you accept the new terms. Questions? Use the form on the Support page or Profile → Help in the app.