Nextdoor
- The documents do not say whether your data trains AI.
- Your data is used for personalized ads, including by third-party ad companies.
- Data is shared with partners and affiliates; you can opt out.
- Staff may review your content; the policy does not describe an opt-out.
Nextdoor collects a lot, uses it for ads and personalization, and shares with ad partners; terms on lawsuits and licenses are missing.
Agent Trust Hub uses AI and may make mistakes. Review reports and confirm their contents before relying on them.
Collected
Account details, posts, messages, device IDs, contacts, photos, location, and partner data.
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Privacy policy
“We may collect personal information about you from you directly, from other Members or other users of our Services, through technology that automatically collects information from your browser or device, and from third party sources.”
Training
They use it to run Nextdoor, personalize the feed, and show and measure ads.
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Privacy policy
“We use personal information to provide and improve advertisements and other commercial offerings both on and off our Services, including:”
Sharing
Neighbors, businesses, visitors, search engines, ad partners, and service providers can see data.
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Privacy policy
“the Content you share on Nextdoor, such as posts, reactions, comments, recommendations, messages, events, and your profile information, may be visible to other Members, businesses, governments and agencies, or the public”
Kept
They keep it as long as they need it for the service or the law; no clear delete-by date.
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Privacy policy
“We retain personal information in our server logs, our databases, and our records for as long as necessary to provide our Services or for the purposes set out in this Privacy Policy.”
Controls
You can change profile and post visibility; some places can opt out of personalized ads.
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Privacy policy
“In your Privacy Settings, you can choose the degree to which personal information, such as your full name, is shared in your personal profile and alongside your posts.”
Fine print
Policy is dated 2026 with notice of big changes; lawsuit, license, and payment rules are not here.
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Privacy policy
“If we materially change this Privacy Policy, we will take steps to notify you in advance of the change as required by applicable law, for example by emailing you or by posting a notice in your neighborhood feed.”
Expand “Read the exact line” to see the source alongside the explanation.
What you can turn off
The controls and opt-outs their own documents describe, and where they say to find them.
Tighten who sees your name and posts
Privacy Settings, and sharing preferences on each post (neighborhood, nearby, anyone, or groups)
Opt out of personalized ads if your state or country allows it
-Specific Disclosures linked in the privacy policy, plus the Cookie Policy
Download your information or ask about access
Your account download tools, or privacy@nextdoor.com for non-members
Delete your account if you reject policy changes
Account deletion; they say you may delete your account if you object to changes
If a switch is not where they say, the deletion request above still applies.
Line by line
The lines that matter most, worst first.
If you sync your address book, Nextdoor gets names and contact details of people who may not even use the app.
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Privacy policy
“You may choose to share or sync your contacts with Nextdoor, including contacts’ names, email addresses, physical addresses, phone numbers, or other information included with your contacts.”
For example, inviting neighbors can upload your whole phone book, including people who never signed up.
If you allow it, they can use your exact location, not just your neighborhood.
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Privacy policy
“You may choose to grant our Services permission to access your device’s precise geolocation, which we may use to confirm your address and help us operate or personalize our Services”
For example, tagging a post could send your precise GPS location to Nextdoor.
They can send hashed emails and ad IDs to ad companies so you can be targeted on and off Nextdoor.
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Privacy policy
“Where permissible according to applicable law, we may share certain personal information, such as hashed emails and advertising identifiers, with our advertising partners that help serve targeted advertising”
For example, an ad network could match your hashed email and show you ads on other sites.
Other companies can send Nextdoor data about you, like purchases or store visits, to target you.
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Privacy policy
“Advertisers, businesses, and advertising partners may choose to share personal information about their customers or potential customers to help us personalize your experiences”
For example, a retailer could tell Nextdoor you bought something so you see related ads.
People and computers can look at your posts and other content to run and improve the product.
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Privacy policy
“We use personal information, and both manual and automated systems, to analyze and use your Content and Member Content (as defined in the Member Agreement) and other information”
For example, a worker or system could review a post you made to train features or moderate it.
Vendors, including ones listed for generative AI, are supposed to use your data only to serve Nextdoor.
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Privacy policy
“These service providers and data processors are contractually obligated to use personal information only to provide their service to us, and are contractually prohibited from using it for their own purposes.”
For example, an AI vendor helping them should not reuse your posts for its own unrelated product if the contract holds.
There is no set time when they must delete your data after you leave.
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Privacy policy
“We retain personal information in our server logs, our databases, and our records for as long as necessary to provide our Services or for the purposes set out in this Privacy Policy.”
For example, old posts or logs could stay on their servers for years if they say they still need them.
Kids under 13 are not allowed, but the policy does not describe a strong age check.
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Privacy policy
“Children are not allowed to use our Services if they are under 13 years old or not old enough for Nextdoor to process their personal information without parental or age-specific consent in the place where they live.”
For example, a 12-year-old could still type a fake age if there is no extra verification.
They say they use HTTPS and sometimes two-factor login, but they do not promise data cannot be stolen.
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Privacy policy
“Nextdoor uses technical and organizational measures intended to keep your data secure, including using https on our web pages to reduce the risk of unauthorized interception of your communications during your visits to the website and two-factor authentication where appropriate.”
For example, your login should go over HTTPS, and you may be able to turn on 2FA.
For big policy changes they say they will try to warn you first, then continued use means you accept.
Read the exact line
Privacy policy
“If we materially change this Privacy Policy, we will take steps to notify you in advance of the change as required by applicable law, for example by emailing you or by posting a notice in your neighborhood feed.”
For example, a new ad-sharing rule might show as a feed notice, and using the app after that counts as agreeing.
Words to know
Legal words from the lines above, in plain English.
- personal data
- Any information that is about you or can be linked to you, from your name to your phone's ID. For example, your email, your IP address and the list of apps on your phone are all personal data.
- third parties
- Any company or person other than you and the app, such as advertisers, partners or analytics firms. For example, an analytics company that receives a record of every screen you tap is a third party.
- retention
- How long a company keeps your data before deleting it. For example, a policy might keep your messages for 30 days after you delete them, or for as long as it likes.
- precise geolocation
- Your exact position, usually from GPS, often accurate to within a few metres. For example, an app can tell not just your city but which building you are in right now.
- device identifiers
- Codes that single out your phone or computer, used to recognise you across apps and sites. For example, the advertising ID on your phone lets two unrelated apps know they are seeing the same person.
- targeted advertising
- Ads chosen for you based on what you have done across other apps and websites, not just this one. For example, you look at shoes in one app and see shoe ads in a totally different app the next day.
- service providers
- Outside companies that handle your data on the app's instructions, such as a cloud host or an email sender. For example, the company that stores the app's files in the cloud sees your data but only does what the app tells it.
- consent
- Your clear agreement to something, given by an action like ticking a box or tapping Accept. For example, a pop-up asking if the app may use your location is asking for consent.
How we got here · grade F · score 31/100 · 15 of 15 policy answers backed by a verified quote · 8 not stated
What does the app collect beyond what it needs to work?
They collect account info and posts plus contacts, photo library, precise location, device IDs, and data from advertisers and public records.
Does it record your voice, face or body, and what happens to that?
Not stated in the documents.
Are your chats and uploads used to train AI models, and is that off by default?
Not stated in the documents.
Can employees or contractors read your conversations, and when?
They say they use both manual and automated systems to analyze your content, with no opt-out described for that review.
Are you profiled or tracked for advertising?
Third-party ad networks use cookies and they may share hashed emails and advertising IDs for targeted ads on and off Nextdoor.
Do they sell or share your data, and can you opt out?
They share with advertisers and partners and say some jurisdictions can opt out of personalized advertising.
What rights do they take over what you type and what the AI makes?
Not stated in the documents.
How long do they keep your data after you delete it, and can you delete it in the app?
Not stated in the documents.
Does it build a lasting memory or profile of you, and can you see, edit or turn it off?
Not stated in the documents.
Do they commit to basic security, and have they leaked data?
They describe HTTPS and two-factor authentication, and say they cannot guarantee data will not be intercepted.
Is there a real age gate, and are teens protected?
Children under 13 cannot use the service. They may ask for date of birth in some places, but there is no described age-assurance system.
Will they tell you when the rules change, and is the policy specific?
The policy is dated January 1, 2026. They say they will notify you of material changes, then continued use means you accept. Retention is not a fixed period.
Can they close your account without warning, and can you get your data out first?
Not stated in the documents.
If something goes wrong, who pays?
Not stated in the documents.
Do subscriptions renew on their own, and can you get a refund?
Not stated in the documents.
The privacy policy is 6,090 words at a college level (Flesch reading ease 42.3).
