Terms of Service

1. Acceptance of Terms

By accessing or using Stamplo (the "Service"), you agree to be bound by these Terms of Service ("Terms"). If you do not agree with any part of the Terms, you may not use the Service.

2. Eligibility

Stamplo is designed for parents or legal guardians to help their children (ages 7-14) connect with pen pals in a safe and supervised environment. As a parent, you must create an account and oversee your child's interactions on the platform.

3. Organisations and Community Networks

Stamplo may also be used by schools, clubs, community groups, charities, or companies to invite families into a shared organisation network. Participation in such networks does not change the requirement that parents or legal guardians remain responsible for their child's account and approval of all communications. Organisations do not have access to private letters exchanged between children.

4. Parental Responsibility

Parents or legal guardians are responsible for managing their child's account, including approving pen pals and reviewing letters. Stamplo ensures that all communication between children is first passed through both the sender's and recipient's parents for approval.

5. Creating an Account

When you register for an account, you agree to provide accurate and complete information. You are responsible for maintaining the confidentiality of your account details and for all activities that occur under your account.

If you do not verify your email address within 14 days of signing up, we reserve the right to delete your parent account and any associated data to comply with data minimisation and storage limitation requirements.

6. Usage Rules

By using Stamplo, you agree that you will not:

• Use the Service for any unlawful purpose or in violation of any applicable laws.
• Upload or share inappropriate or offensive content, including explicit images or language.
• Harass, intimidate, or harm other users, and will behave respectfully towards others.
• Attempt to access accounts, systems, or data that you are not authorised to access.
• Parents or legal guardians are responsible for reviewing letters and deciding what information their child may share. Personal contact information such as home addresses, phone numbers, or external messaging accounts should only be shared with parental approval.

7. Letter Review Process

All letters sent through Stamplo are first reviewed by both the sender's and recipient's parents. No letter will be delivered to a child without explicit approval from both parents. This helps maintain the safety and privacy of children using the platform.

If a delivered letter worries a child, they can report it with the button on the letter. The letter is hidden from them straight away, their parent and Stamplo are told, and Stamplo's safeguarding reviewer reads it, aiming to do so within 24 hours. The receiving child's parent can also flag a letter instead of approving it, or escalate one to us. See section 7A for what happens next.

Pen pal connection requests that have not been responded to are automatically withdrawn after 14 days. Parents are notified by email when this occurs, and children may send a new request in future.

Letters that remain awaiting parental approval for 90 days are automatically cancelled. The letter content and any attached image are permanently deleted, and the sender's parent is notified. A warning email is sent to the parent holding up approval at day 60, stating the specific cancellation date.

7A. Online Safety

This section explains what is not allowed on Stamplo, how children are protected from it, and how to complain or appeal. It applies to everyone who uses Stamplo, and to every part of it: letters, pictures, pen pal requests, profiles and family introductions.

What is not allowed

None of the following is allowed anywhere on Stamplo, by anyone:

• Anything illegal, including child sexual abuse material, grooming or any attempt to sexually exploit a child, terrorist content, threats, and fraud.
• Pornographic content.
• Content that encourages, promotes or gives instructions for suicide.
• Content that encourages, promotes or gives instructions for deliberate self-injury.
• Content that encourages, promotes or gives instructions for an eating disorder or behaviours linked to one.
• Content that is abusive and targets someone's race, religion, sex, sexual orientation, disability or gender reassignment.
• Content that incites hatred against people because of any of those characteristics.
• Content that encourages, promotes or gives instructions for serious violence against a person.
• Bullying.
• Content that shows real or realistic serious violence against a person, or a person's serious injury in graphic detail.
• Content that shows real or realistic serious violence against an animal, or an animal's serious injury in graphic detail, or that realistically shows serious violence against or graphic injury to a fictional creature.
• Content that encourages, promotes or gives instructions for a challenge or stunt highly likely to seriously injure the person doing it or someone else.
• Content that encourages someone to take a physically harmful substance, or a substance in a harmful amount.
• Content that shames or stigmatises body types or physical features.
• Content that promotes depression, hopelessness or despair.

How children are protected

Every letter and picture is read and approved by the writer's parent and then by the receiving child's parent before the child sees it, and it arrives 12 hours later. Pictures are off unless both families allow them. Pen pal requests need both parents and the receiving child to agree. These protections are the same for children of every age on Stamplo. New pen pals must be within two years of each other in age, and no new pen pal friendship can start once a child is 15. For each kind of content above:

• Illegal content: stopped by both parents before delivery, and every picture is also checked automatically against known child sexual abuse material before it is stored; if found, removed, the account suspended, and reported to the National Crime Agency or the police where the law requires.
• Pornographic content: pictures are off by default, and both parents see every picture and letter before a child does, so it is stopped before delivery.
• Suicide content: stopped by both parents before delivery; every letter page shows a helpline note, with the helpline for the child's country where we have one and a reminder to talk to a trusted adult.
• Self-injury content: stopped by both parents before delivery; the same helpline note is shown.
• Eating disorder content: stopped by both parents before delivery; profiles have no photographs or free text.
• Abusive content targeting a characteristic: stopped by both parents, including the target's own parent, before delivery.
• Content inciting hatred: stopped by both parents before delivery; letters go to one pen pal only and cannot be forwarded.
• Content encouraging serious violence: stopped by both parents before delivery.
• Bullying: stopped by both parents before delivery; a parent can end a pen pal exchange at any time, and only one letter can be on its way in each direction, so there is no flood of messages and no audience.
• Violence against a person: pictures are off by default and both parents review every picture and letter before delivery.
• Violence against an animal or creature: pictures are off by default and both parents review every picture and letter before delivery.
• Dangerous challenges and stunts: stopped by both parents before delivery; Stamplo has no video, and letters cannot be shared on.
• Harmful substances: stopped by both parents before delivery.
• Body shaming: pictures are off by default, profiles have no photographs, and both parents review every letter.
• Content promoting depression or hopelessness: stopped by both parents before delivery; there are no feeds, so nothing builds up; the helpline note is shown.

The one automatic check. When a picture is added to a letter, we check it automatically against lists of pictures already known to be child sexual abuse material, before it is stored. Only a code calculated from the picture on our own server is sent for the check, never the picture itself, the letter or anything about the child or family. Stamplo uses PhotoDNA technology licensed by Microsoft at no cost. If a picture matches, the letter is not delivered, and Stamplo's safeguarding reviewer deals with it under our reporting procedure, which can include a report to the National Crime Agency. Nothing else is checked automatically: the words of a letter, and every picture that does not match, are checked by people, which means the two parents before delivery, and Stamplo's safeguarding reviewer when a letter is reported, flagged or escalated.

If someone breaks these rules, or we find content that does, we remove it, may suspend the account (section 12), and where the law requires, report it to the National Crime Agency. We keep what the law requires us to keep for that report, even if the account is deleted (see our Privacy Policy, section 6).

Who can use Stamplo

Stamplo is for children aged 7 to 14, with a parent or legal guardian. A parent must give the child's date of birth when creating the child's account, and we do not accept a child under 7 or over 14. The parent must first pass an identity check (section 20). We apply these rules to every account.

How to report a concern or complain

• A child can press "This letter worries me" on any letter. It is hidden at once and their parent and Stamplo are told.
• The receiving child's parent can flag a letter instead of approving it, or escalate a delivered letter to us, from the parent dashboard.
• Anyone, including people who do not use Stamplo, can use our contact form or email support@stamplo.kids, for example about content, about how we have handled something, or about whether we are meeting our online safety duties.

We aim to review a reported or flagged letter within 24 hours, and to reply to other messages within 24 to 48 hours. We will tell you what happens next and, where we can, the outcome. Sometimes the law means we cannot say more, for example while the police or the National Crime Agency are involved. If you do not want any more messages about your complaint, tell us and we will stop.

How to appeal

If we removed a letter, paused a child's account or suspended a family and you think we were wrong, including where a letter was stopped by the automatic picture check, email support@stamplo.kids with "Appeal" in the subject and tell us why. We will look at the decision again, aim to reply within 14 days, and put it right if it was wrong.

8. User Content

You retain ownership of the content you send via Stamplo, including letters, photos, and other communications. However, by using the Service, you grant us a non-exclusive, royalty-free, worldwide license to store, distribute, and process the content as necessary to provide the Service.

9. Physical Products

Stamplo offers physical products (currently the Stamplo World Map poster) that can be purchased without a Stamplo account. The following terms apply to all physical product purchases:

• Fulfilment: Orders are printed and dispatched by Gelato AS, a third-party print-on-demand provider. Stamplo acts as the seller; Gelato fulfils the order on our behalf.
• Delivery: Estimated delivery times are 3–7 business days from the date of dispatch, depending on your location. These are estimates only and are not guaranteed.
• Returns and refunds: Because each item is printed on demand specifically for your order, we are unable to accept returns or offer refunds except where the product is defective or materially different from its description. If your order arrives damaged or with a print defect, please contact us at support@stamplo.kids within 14 days of receipt with a description and photograph of the issue. Your statutory rights as a consumer are not affected.
• Consumer rights: If you are a consumer in the UK or EU, your statutory rights under the Consumer Rights Act 2015 (UK) or applicable EU consumer law apply. Nothing in these Terms limits or excludes those rights.
• Data: Your name, email address, and shipping address are shared with Stripe (payment processing) and Gelato (order fulfilment) as described in our Privacy Policy.

10. Stamplo Premium

Stamplo Premium is an optional monthly subscription available to parent accounts. It unlocks cosmetic features for children, currently including additional letter paper designs and writing colours. Premium features are visual only and do not affect letter delivery, pen pal matching, or any safety or moderation process.

• Price: £3.99 per month (GBP). The price shown at the time of subscription is the price you will be charged. Prices may change with reasonable notice.
• Billing: Payments are processed monthly by Stripe, Inc. on the same date each month from when you first subscribed. Stamplo does not store payment card details — these are held securely by Stripe.
• Currency: All charges are in GBP. If your bank account is held in another currency, your bank will apply its own conversion rate and may charge a foreign transaction fee. Stamplo has no control over this.
• Cancellation: You may cancel at any time from your account settings using the “Manage subscription” button. Premium features remain active until the end of the current billing period. No partial refunds are given for unused days.
• Refunds: Payments are non-refundable except where required by law. If you believe you have been charged in error, contact us at support@stamplo.kids.
• Automatic renewal: Your subscription renews automatically each month unless you cancel before the renewal date. You will not receive a separate reminder before each renewal.
• Changes to Premium features: We may add, modify, or remove individual Premium features over time. We will not remove all Premium features without notice, and if we do make a significant reduction we will notify you and you may cancel without penalty.
• Data: Your name and email address are shared with Stripe to manage billing. See our sub-processors page for full details.

10A. Voluntary Contributions

Parents may choose to contribute towards Stamplo's running costs, either once or every month. A contribution is voluntary: it does not buy any product, feature or service, Stamplo remains free whether or not you contribute, and it makes no difference to your child's account. Stamplo Limited is a company and not a charity, so contributions are not charitable donations and Gift Aid does not apply.

• Payment: Contributions are taken in GBP by Stripe, Inc. on a page hosted by Stripe. Stamplo does not see or store payment card details.
• Monthly contributions: A monthly contribution is taken on the same date each month until you cancel it. You can change or cancel it at any time through the link on the Support Stamplo page in your account settings, or by emailing support@stamplo.kids, and no further payments are taken after you cancel.
• Refunds: If you contributed by mistake or chose the wrong amount, email us within 14 days of the payment and we will refund it in full. Otherwise contributions are not refundable except where required by law.
• Data: Your name, email address and payment details are processed by Stripe. Contributions are not linked to your Stamplo account. See our sub-processors page for full details.

11. Data Privacy

We take your privacy seriously. Our Privacy Policy outlines how we collect, use, and protect your personal information. By using Stamplo, you agree to the collection and use of information in accordance with our Privacy Policy.

When a child reports a letter, or a parent flags or escalates one, Stamplo's safeguarding reviewer reads it to decide whether there is a concern, because the law requires us to review content that may be harmful or illegal (see section 7A). Access is limited to the reviewer, logged, and kept confidential.

12. Termination

We reserve the right to suspend or terminate your account at any time, without notice, if you violate these Terms or engage in any conduct that we believe is harmful to the Service or other users.

13. Service Changes

We may update, improve, modify, or discontinue parts of the Service from time to time in order to maintain safety, improve functionality, or comply with legal requirements.

14. Disclaimer of Warranties

The Service is provided on an 'as is' and 'as available' basis. We make no warranties or representations about the accuracy or completeness of the Service, and disclaim all warranties, including implied warranties of merchantability, fitness for a particular purpose, and non-infringement.

15. Limitation of Liability

To the fullest extent permitted by law, Stamplo shall not be liable for any damages, including but not limited to direct, indirect, incidental, consequential, or punitive damages arising from your use of the Service or inability to access the Service.

Nothing in these Terms excludes or limits liability for death or personal injury caused by negligence, fraud, or any other liability that cannot lawfully be excluded.

These Terms apply to the services provided by Stamplo Limited (Company No. 16555069). Stamplo Limited is the data controller for personal data processed under these Terms.

16. Changes to the Terms

We may update these Terms from time to time. If we make significant changes, we will notify you by posting the updated Terms on our website. Continued use of the Service after changes to the Terms constitutes your acceptance of the new Terms.

17. Governing Law

These Terms are governed by and construed in accordance with the laws of the United Kingdom, without regard to its conflict of laws provisions. Any disputes arising from these Terms will be subject to the exclusive jurisdiction of the courts of England and Wales.

18. Assignment

We may assign or transfer these Terms and our rights and obligations under them to a successor entity in the event of a merger, acquisition, corporate restructuring, or sale of assets. Your rights under these Terms will not be materially reduced as a result of such assignment.

19. Limitation of Responsibility

Stamplo is a parent-supervised communication platform, not a real-time messaging app or social network. Every piece of content your child sends is reviewed by you and the other parent before it's delivered. While Stamplo uses appropriate technical and organisational security measures, no system is 100% impenetrable. By using the Service, you agree that Stamplo shall not be liable for unauthorised access resulting from circumstances beyond our control, including compromised parent accounts or misuse of login credentials.

20. Age Verification

From 1 January 2026, families must complete a one-time age and identity verification through our approved verification partner before any child can access Stamplo. Parents can register freely, but children's accounts will remain inactive until verification is complete. This measure protects under-age users and ensures parental responsibility is genuine.

When you create an account, you agree that Stamplo may require verification of your age and parental status before enabling child participation. You will be notified within the platform when verification is required, and access for children will remain restricted until completion.

Stamplo partners with an independent verification provider (currently Didit Ltd) to complete this process. Only verification status — not ID images or documents — is stored by Stamplo.

In rare cases where a verification attempt fails (for example due to low lighting, incorrect camera angle, or a failed liveness check), you agree that a qualified Stamplo safeguarding officer may view the verification media directly within our verification provider's secure dashboard for the sole purpose of confirming that the attempt was genuine. Stamplo does not download, copy, or store any images or videos from the verification process, and all access is logged for safety and accountability.

21. Contact Information

If you have any questions or concerns about these Terms, please contact us at:

support@stamplo.kids