Terms of Service
Let Them Know · Version 2 · Effective November 9, 2026
These are the same Terms shown in the app (Settings > License & Terms). Apple's Licensed Application End User License Agreement also applies to the app.
These Terms of Service ("Terms") are an agreement between you and Teal River Technologies, LLC, a New York limited liability company ("Teal River," "we," "us" or "our"), which makes the Let Them Know app and the service behind it (together, "Let Them Know"). They apply to everyone who uses Let Them Know, whether you send alerts or receive them.
PLEASE READ THESE TERMS CAREFULLY. BY TAPPING "AGREE," "ACCEPT" OR SIMILAR, OR BY USING LET THEM KNOW, YOU AGREE TO THESE TERMS. SECTION 18 CONTAINS A BINDING ARBITRATION AGREEMENT AND A CLASS ACTION AND JURY TRIAL WAIVER THAT AFFECT HOW DISPUTES ARE RESOLVED. IF YOU DO NOT AGREE, DO NOT USE LET THEM KNOW.
1. Not an Emergency Service
Let Them Know is NOT a substitute for calling 911 or your local emergency number, and it is not an emergency, monitoring, security or dispatch service. In any situation that may require immediate help, CALL 911 FIRST. Never delay calling 911 in order to use Let Them Know.
Teal River does not monitor alerts. No one at Teal River watches for, reads or responds to your alerts, and we do not contact police, ambulance, fire or any other emergency service, or send anyone to help you, for any reason. Let Them Know only passes your message and location to the people you chose. Whether and how they respond is entirely up to them.
Let Them Know is not a medical alert or medical device. It does not detect falls, crashes, medical conditions or emergencies, and it never sends an alert on its own: an alert is sent only when someone deliberately triggers it.
Let Them Know does not make anyone safe or protect anyone. It does not guarantee that an alert will reach anyone or that anyone will respond.
You use Let Them Know at your own risk. It is a supplemental tool only and must never be your only way of getting help.
2. How Alerts Work, and Why They May Fail
Let Them Know does not guarantee that any alert will be sent, delivered, delivered promptly, seen or acted on. Alerts may be delayed or fail for many reasons, including:
- No cellular signal or internet connection, or a slow one
- Your phone or your contact's phone being off, out of battery, out of coverage, or in a mode that silences notifications (such as Focus or Do Not Disturb)
- Notifications, location or Bluetooth being turned off, or permissions not granted
- Location being unavailable, approximate, or several minutes old. The location sent is the most recent one your iPhone recorded
- A Bluetooth panic button that is out of range, disconnected, out of battery or not compatible
- Operating system limits on apps running in the background, and iOS ending the Lock Screen button after several hours
- A contact who has not installed the Let Them Know app and accepted your invitation, has removed the app, or has stopped receiving your alerts
- A wrong or out-of-date phone number for a contact
- Where text messages are offered: a contact who replied STOP, or the monthly text limit having been reached (see Sections 12 and 13)
- Your subscription not being active (see Section 12)
- Delays or failures by mobile carriers, Apple, Twilio, Amazon Web Services or other providers, and outages or errors in our own service
3. Who Can Use Let Them Know
You must be at least 13 years old to use Let Them Know. If you are under 18 (or the age of majority where you live), you may use Let Them Know only with the permission of a parent or legal guardian, who agrees to these Terms on your behalf and is responsible for your use of Let Them Know.
4. Your Responsibilities as a Sender
If you use Let Them Know to send alerts, you are responsible for:
(a) Entering each emergency contact's phone number correctly and keeping it up to date. If a number is wrong, texts may go to a stranger, and you are responsible for them;
(b) Allowing Let Them Know to use your location and to send notifications, as shown in the checklist on the main screen;
(c) If you use a Bluetooth panic button, keeping it charged and checking that the app shows it as connected;
(d) Testing every way you plan to send an alert (the Send Alert button, Lock Screen button, Action Button, Back Tap, Control Center, voice and Shortcuts triggers, and any panic button). Some of these are set up in your iPhone's Settings, and Let Them Know cannot confirm that they work;
(e) Practising regularly with Test Mode, keeping your subscription active and keeping the app up to date; and
(f) Making sure your contacts know what a Let Them Know alert means and what you would like them to do.
5. Your Contacts' Consent
Before you add anyone as an emergency contact, you must ask them and they must agree to receive Let Them Know alerts from you (and, where text messages are offered, texts). The app shows you what to ask ("Ask Them First"). Do not add anyone who has not agreed, or who has asked not to be contacted, and remove a contact if they withdraw their agreement.
Each time you add a contact, you represent and warrant to Teal River that the person has given that consent and that the phone number belongs to them. We rely on your representation when we contact that person, and you are responsible for any claim that arises because it was not true (see Section 17).
6. Sharing Your Location and Information
When you send an alert, you direct Teal River to share your name, your alert message and your location with the contacts in that alert, by notification in the Let Them Know app and, where text messages are offered, by text message. While the alert's status screen is open and the alert is active, the app keeps sending your updated location so your contacts' maps stay current. Contacts who have the app see your location on a live map; contacts who receive a text get a map link.
Your contacts can see, save, forward or act on what they receive. Teal River is not responsible for what your contacts or anyone else do with your information. See the Privacy Policy at letthemknow.tealrivertechnologies.com/privacy.
7. If You Receive Alerts
Receiving alerts in the Let Them Know app is free. If you receive an alert:
(a) You are under no obligation to Let Them Know, to Teal River or to the sender to respond or take any action;
(b) Alerts can be late, show an approximate or out-of-date location, or be sent by mistake;
(c) IF YOU BELIEVE SOMEONE MAY BE IN DANGER, CALL 911. Do not put yourself in danger. Going to the sender's location may be unsafe, and you are responsible for that decision. "On My Way" only sends a message to the sender; it does not tell anyone else;
(d) Teal River is not responsible for your decisions or actions, or the sender's, or for any harm that results from responding or not responding to an alert; and
(e) You can stop receiving someone's alerts at any time in the app, or, if you receive Let Them Know texts, by replying STOP.
8. Acceptable Use
You agree not to:
(a) Send a false, prank or test alert to anyone who has not agreed to it (use Test Mode to practise);
(b) Use Let Them Know to harass, threaten, frighten, stalk, monitor or track anyone, or to obtain anyone's location without their knowledge and consent;
(c) Add anyone as a contact without their consent, or a number that is not theirs;
(d) Impersonate anyone, or use a name intended to mislead;
(e) Use Let Them Know to send anything other than genuine personal safety alerts, or for any commercial, marketing or unlawful purpose;
(f) Interfere with, disrupt, overload, reverse engineer, or try to get around the limits or security of Let Them Know or its text messaging; or
(g) Help anyone else do any of these things.
We may investigate suspected misuse, and may suspend or end your access to Let Them Know, including the ability to send texts, at any time and without notice if we believe you have broken these Terms or the law, or to protect others or the service.
9. Test Mode, Presses and Countdowns
Test Mode lets you practise sending an alert without sending anything to your contacts. You can set the Send Alert button and panic button to require between 2 and 5 presses before an alert is sent; pressing more times does not send more alerts.
Single-action triggers (such as the Lock Screen button, Action Button, Back Tap, voice and Shortcuts) may wait for a short countdown, which you can set in Settings, so that an accidental alert can be cancelled. Cancelling requires Face ID, Touch ID or your passcode. Triggers from Control Center send immediately, without a countdown. Once an alert is sent, it cannot be recalled: "I'm Safe" tells your contacts you are safe, but cannot unsend texts or notifications already delivered.
10. Feedback and Background Operation
The app plays a sound and vibrates to confirm presses and alerts. When the app is in the background or your iPhone is locked, this feedback comes through notifications and depends on your notification, Focus and sound settings. Let Them Know is designed to work in the background, but iOS limits what apps can do in the background, and how well it works depends on your device, its settings and its condition.
11. Bluetooth Buttons and Other Products and Services
Let Them Know can pair with many Bluetooth (BLE) buttons and clickers, but Teal River does not make, sell, test, endorse or support any of them. We do not promise that any particular button will work with Let Them Know, now or after future iPhone, iOS or app updates. Buttons can lose connection, run out of battery, or fail without warning. Their makers, not Teal River, are responsible for them.
Let Them Know also depends on products and services we do not control, including your iPhone and iOS, Apple's notification service, mobile carriers and internet providers, Amazon Web Services (hosting), Twilio (text messages, where offered) and map services. We are not responsible for them.
12. Subscriptions, Limits and Changes
Sending alerts requires an active Let Them Know subscription, which may begin with a free trial. WHEN YOUR SUBSCRIPTION IS NOT ACTIVE, ALERTS ARE NOT SENT. Subscriptions are bought, renewed, cancelled and refunded through your Apple Account, under Apple's terms; Teal River does not handle payments or refunds.
Let Them Know currently delivers alerts only through the Let Them Know app, to contacts who have installed it and accepted your invitation; contacts who have not done so do not receive your alerts. Where text messages are offered, alerts that deliver a text message are limited to 20 per calendar month, or 5 during a free trial; alerts that reach contacts only through the app, or whose texts are not delivered, do not count, and once the limit is reached no text messages are sent until the next month.
We may change Let Them Know's features, limits and prices. Price changes for existing subscriptions are made through Apple, with the notice Apple requires.
13. Text Messages
Let Them Know does not currently send text messages. If we offer text messages, they work as follows, and we will tell you in the app before any are sent. Let Them Know sends text messages only to the emergency contacts a user adds, and only for Let Them Know alerts: one text when a contact is added, telling them who added them and how to opt out, and then only when that user sends an alert (at most 20 alerts a month). Message and data rates may apply. A contact can reply STOP to any Let Them Know text to stop receiving texts, START to receive them again, or HELP for help, or email admin@tealrivertechnologies.com. Wireless carriers are not liable for delayed or undelivered messages. Phone numbers are used only to deliver alerts and are never sold or shared with third parties for marketing. Details: letthemknow.tealrivertechnologies.com/sms.
14. Privacy
The Privacy Policy at letthemknow.tealrivertechnologies.com/privacy explains what information Let Them Know uses, where it goes and how long it is kept.
15. No Warranties
LET THEM KNOW IS PROVIDED "AS IS" AND "AS AVAILABLE," WITH ALL FAULTS AND WITHOUT WARRANTIES OF ANY KIND, EXPRESS, IMPLIED OR STATUTORY, INCLUDING ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, NON-INFRINGEMENT AND ACCURACY. TEAL RIVER DOES NOT WARRANT THAT LET THEM KNOW WILL BE UNINTERRUPTED, TIMELY, SECURE OR ERROR-FREE, THAT ANY ALERT WILL BE DELIVERED, OR THAT ANY LOCATION WILL BE ACCURATE.
16. Limitation of Liability
TO THE FULLEST EXTENT PERMITTED BY LAW, TEAL RIVER AND ITS MEMBERS, MANAGERS, EMPLOYEES, CONTRACTORS, AGENTS, LICENSORS AND SERVICE PROVIDERS WILL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, EXEMPLARY OR PUNITIVE DAMAGES, OR FOR ANY PERSONAL INJURY, DEATH, PROPERTY DAMAGE OR LOSS, ARISING OUT OF OR RELATED TO LET THEM KNOW OR THESE TERMS. THIS INCLUDES DAMAGES ARISING FROM AN ALERT THAT WAS NOT SENT, NOT DELIVERED, DELAYED OR SENT BY MISTAKE; AN INACCURATE OR OUT-OF-DATE LOCATION; ANYONE'S RESPONSE OR FAILURE TO RESPOND TO AN ALERT; THE ACTS OR OMISSIONS OF YOUR CONTACTS, OTHER USERS OR THIRD PARTIES; OR RELIANCE ON LET THEM KNOW IN AN EMERGENCY. THIS APPLIES WHATEVER THE LEGAL THEORY (CONTRACT, TORT, NEGLIGENCE, STRICT LIABILITY OR OTHERWISE), EVEN IF WE WERE TOLD SUCH DAMAGES WERE POSSIBLE.
TEAL RIVER'S TOTAL LIABILITY FOR ALL CLAIMS RELATED TO LET THEM KNOW IS LIMITED TO THE GREATER OF (A) THE AMOUNT YOU PAID FOR LET THEM KNOW IN THE 12 MONTHS BEFORE THE CLAIM AROSE, OR (B) FIFTY U.S. DOLLARS (US$50).
Some jurisdictions do not allow some of these exclusions or limits. In those places, they apply to the fullest extent the law allows, and nothing in these Terms limits liability that cannot be limited by law.
17. Indemnification
You agree to defend, indemnify and hold harmless Teal River and its members, managers, employees, contractors and agents from any claim, demand, loss, liability, damages, fine, penalty, cost or expense (including reasonable attorneys' fees) arising out of or related to: (a) any contact you added or any text or alert sent to a number you entered, including any claim that the person did not consent, or that the number was not theirs; (b) your alerts and their content; (c) your misuse of Let Them Know or breach of these Terms; or (d) your violation of any law or of anyone's rights. We may take control of the defence of any such claim at our own expense, and you will cooperate with us.
18. Dispute Resolution; Binding Arbitration; Class Action Waiver
PLEASE READ THIS SECTION CAREFULLY. IT REQUIRES YOU AND TEAL RIVER TO RESOLVE DISPUTES BY INDIVIDUAL ARBITRATION RATHER THAN IN COURT, AND IT WAIVES CLASS ACTIONS AND JURY TRIALS.
(a) Informal resolution first. Before starting arbitration or a court case, the party with the dispute must email the other a written description of it and the remedy sought (to us at admin@tealrivertechnologies.com), and both must try in good faith to resolve it for 60 days.
(b) Arbitration. Any dispute, claim or controversy arising out of or relating to Let Them Know or these Terms, including their formation, scope, validity or enforceability ("Dispute"), will be resolved by final and binding arbitration administered by the American Arbitration Association ("AAA") under its Consumer Arbitration Rules then in effect, before a single arbitrator. The Federal Arbitration Act governs this Section. The arbitration will take place in New York County, New York, or, at your choice, by video conference or in the county where you live. Fees are paid as the AAA Consumer Arbitration Rules provide. The arbitrator may award the same individual relief a court could, but only to you individually.
(c) Exceptions. Either party may bring an individual claim in small claims court if it qualifies, or seek a court order to stop infringement or misuse of intellectual property or of the service.
(d) Class action and jury trial waiver. YOU AND TEAL RIVER EACH MAY BRING CLAIMS AGAINST THE OTHER ONLY IN AN INDIVIDUAL CAPACITY, AND NOT AS A PLAINTIFF OR CLASS MEMBER IN ANY CLASS, COLLECTIVE, CONSOLIDATED OR REPRESENTATIVE ACTION. YOU AND TEAL RIVER EACH WAIVE THE RIGHT TO A JURY TRIAL. If this class action waiver is found unenforceable for any claim, that claim will be decided in court, not in arbitration.
(e) Opting out. You may opt out of this arbitration agreement by emailing admin@tealrivertechnologies.com within 30 days of first accepting these Terms, with your name and a statement that you opt out of arbitration. Opting out does not affect any other part of these Terms.
(f) Time limit. To the extent the law allows, any Dispute must be brought within one year after it arose, or it is permanently barred.
19. Governing Law and Courts
These Terms are governed by the laws of the State of New York, without regard to its conflict-of-laws rules, and by the Federal Arbitration Act for Section 18. Any Dispute that is not arbitrated will be brought only in the state or federal courts located in New York County, New York, and you and Teal River consent to their jurisdiction.
20. Changes to These Terms
We may update these Terms from time to time. When we make material changes, we will update the version and date above and ask you to agree in the app. If you do not agree to the updated Terms, you must stop using Let Them Know. Continuing to use Let Them Know after an update takes effect means you accept the updated Terms. Changes do not apply to Disputes that arose before the change.
21. Ending Use of Let Them Know
You may stop using Let Them Know at any time. Settings > Delete My Data removes your information from our service, and deleting the app removes it from your iPhone. Cancel your subscription through your Apple Account. We may suspend or end Let Them Know, or your access to it, at any time. Sections 1, 2, 5, 6, 7(d), 15 through 19 and 22 through 24 continue to apply after your use ends.
22. Apple
These Terms are between you and Teal River only, not Apple. Teal River, not Apple, is solely responsible for Let Them Know and its content, maintenance, support and any warranty to the extent not effectively disclaimed. Apple has no obligation to provide maintenance or support for Let Them Know. If Let Them Know fails to conform to any applicable warranty, you may notify Apple, and Apple will refund the purchase price, if any; to the maximum extent permitted by law, Apple has no other warranty obligation. Teal River, not Apple, is responsible for any claims relating to Let Them Know, including product liability claims, claims that it fails to meet legal or regulatory requirements, consumer protection, privacy and similar claims, and claims that it infringes a third party's intellectual property. You must comply with applicable third-party terms when using Let Them Know, and you represent that you are not located in a country subject to a U.S. Government embargo or designated as a "terrorist supporting" country, and are not on any U.S. Government list of prohibited or restricted parties. Apple's Licensed Application End User License Agreement also applies to your use of the app. Apple and its subsidiaries are third-party beneficiaries of these Terms and may enforce them against you.
23. General
These Terms, the Privacy Policy and any terms they refer to are the entire agreement between you and Teal River about Let Them Know. If any part of these Terms is found unenforceable, it will be enforced to the maximum extent possible and the rest will remain in effect. Our failure to enforce any part is not a waiver. You may not transfer your rights under these Terms; we may transfer ours, for example in a merger or sale. Nothing in these Terms creates a partnership, agency or employment relationship. We are not responsible for delays or failures caused by events beyond our reasonable control. We may send you notices in the app or by email if you have given us one. Section headings are for convenience only.
24. Contact
Teal River Technologies, LLC, New York · admin@tealrivertechnologies.com
Acknowledgment
By agreeing, you confirm that you have read and understood these Terms and agree to them, and that in any emergency your best course of action is to call 911 or contact someone who can help directly. Let Them Know is only an additional layer of safety.