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Bagpipper Developers

Developer Agreement

The rules for publishing on the Bagpipper App Store, in plain English.

This agreement (version 2026-10) is between you and Svayam Incarnation Limited, a company registered in England and Wales (company number 15228262, registered office 124 City Road, London, EC1V 2NX) ("we", "us"). It applies when you create a developer account and publish extensions, web apps or desktop apps ("items") on the Bagpipper App Store. By ticking the box when you create your account, you accept it. If you accept it for an organisation, you confirm that you have authority to bind that organisation, and "you" means the organisation.

This agreement includes our Acceptable use policy (bagpipper.com/legal/acceptable-use) and Privacy policy (bagpipper.com/legal/privacy). If they conflict, this agreement wins.

1. Your account

  1. You must give true, complete and current information, and keep it up to date in the developer console.
  2. You must be at least 18, or the age of majority where you live if that is higher.
  3. You must not be a person, or owned or controlled by a person, subject to UK, EU, UN or US sanctions, and you must not be located in a country where we cannot lawfully work with you.
  4. You are responsible for everything done through your account and your Viremail sign-in. Keep it secure, use a second sign-in factor where offered, and tell us at once at [email protected] if you think someone else has used it.
  5. One person or organisation may have one developer account unless we agree otherwise.

2. Verification and your documents

  1. We verify every developer before they can publish. Individuals give an identity document and a photo of themselves. Organisations give their registration details and a registration document, and prove control of their domain with a DNS record or a file on their website.
  2. We may refuse, pause or close an account that we cannot verify, or where we reasonably suspect fraud or a risk to users.
  3. We use your documents only to verify you, to keep the Store safe and to meet legal duties. They are encrypted when stored, only our reviewers can open them, and we delete them 90 days after we decide on your account. We do not sell or share them, except where the law requires. The Privacy policy explains your rights.

3. Publishing and review

  1. Every listing and every new version is reviewed before it is published. We may approve it, reject it with a reason, or ask you to change it. Our decisions are made by people, and you may ask a second reviewer to look again.
  2. Review is not a guarantee that your item is safe, lawful or free of faults, and it does not move your responsibility for your item to us.
  3. You must not change what an item does after review, for example by downloading code from elsewhere that changes its behaviour. Changes go through review as a new version.
  4. Changing the details of a live listing, or the permissions an item asks for, may send it back for review.
  5. We may sign, repackage or scan your items so that the browser can check where they came from and that they have not been changed. We will not change how your item works.

4. Content and conduct

Your listings and items must:

  1. be honest: names, icons, descriptions, screenshots, permissions and prices must match what people get;
  2. be yours to publish, and not infringe anyone else's intellectual property, privacy or other rights;
  3. not use another company's name, logo or branding to suggest that they made or support your item;
  4. not contain or promote illegal content, or content that is hateful, harassing, sexually explicit, violent, deceptive, or that sexually exploits or endangers children;
  5. work as described, and be kept up to date and supported for as long as they are listed;
  6. follow the Acceptable use policy and the developer documentation.

5. Malware and harmful behaviour

You must not publish anything that contains or delivers malware, spyware, adware, ransomware or cryptominers, or that damages, secretly monitors or takes control of a device, account or data. You must not hide behaviour from review, collect data you have not disclosed, hijack search, home pages or new tabs without clear consent, inject adverts into pages people did not ask you to change, or interfere with other items or with the browser's security. We will remove such items, may switch them off where they are installed, may close your account, and may report the matter to the authorities.

6. Privacy and user data

  1. Every listing must link to a privacy policy that says truthfully what data your item collects, why, where it goes and how long it is kept. You must follow it.
  2. Collect only the data your item needs for the features people see. Do not sell personal data, or use it for purposes users would not expect.
  3. You are the controller of personal data your item handles, and you must comply with the data protection laws that apply to you, including the UK GDPR and EU GDPR where relevant.
  4. Items aimed at children, or that handle health, financial or other sensitive data, must meet the extra requirements in our developer documentation.
  5. We will give you data about your listings, such as download counts, in a form that does not identify users.

7. Paid items, payments and revenue share

  1. Paid sales are not open yet. You may set a price on a listing, but it cannot be sold until we open paid sales and your payout account is set up. We will give you at least 30 days' notice of the payment terms, which will become part of this agreement.
  2. When paid sales open, you keep 85 percent of the price of each sale, after any VAT or sales tax we must collect, and we keep 15 percent. Payouts will be made through our payment provider, and you will need to complete its identity and tax checks.
  3. You set your prices. Prices are in pounds sterling unless we say otherwise. You must state any free trial, subscription and refund terms clearly in the listing.
  4. Refunds and chargebacks reduce your share of that sale. Buyers will be able to get a refund within 48 hours of a purchase, and consumers keep their legal rights.
  5. You are responsible for your own taxes on what you receive. Where the law makes us responsible for collecting or paying tax on a sale, we will do so and show how it affects your share.
  6. We may hold payouts while we investigate suspected fraud, a serious breach of this agreement or a legal requirement, and we will tell you why where we can.
  7. Free listings carry no fee.

8. Your licence to us

You keep ownership of your items and listings. You give us a worldwide, non-exclusive, royalty-free licence to host, copy, sign, scan, test, distribute, display and make available your items and listings through the Store, our browser and our other products, for as long as they are listed and for a reasonable time afterwards to support people who already have them. You also allow us to use your public developer name, item names, icons and screenshots to promote the Store. You can ask us to stop featuring your item at any time.

You give each person who gets your item a licence to use it on the terms you state in your listing or in the item itself. If you state none, a personal, non-exclusive licence to install and use the item applies.

9. Suspension and removal

  1. We may reject, suspend or remove a listing, or suspend your account, if we reasonably believe it breaks this agreement, puts people at risk, harms the Store's reputation, or must be removed by law. We will tell you why, and how to respond, unless the law or the risk of further harm prevents us.
  2. Where an item is harmful, for example because it contains malware, we may switch it off or remove it on devices where it is already installed.
  3. You may withdraw a listing at any time from the developer console. People who already have your item may keep using it, and you must keep any paid licence you sold working for the period it was sold for, or refund it.
  4. You may appeal any decision by replying to our message or writing to [email protected]. A different reviewer will consider it.

10. Ending this agreement

You may end this agreement at any time by closing your developer account, which you can ask us to do at [email protected]. We may end it, with 30 days' notice, for any reason, or straight away for a serious or repeated breach, fraud, or where the law requires. When it ends, your listings are removed, we pay you what you have properly earned less any amounts you owe, and sections 6, 8 (for people who already have your items), 11, 12 and 14 continue.

11. Responsibility and liability

  1. The Store is provided "as is". We do not promise that it will always be available, error-free or that your items will reach any number of people.
  2. Nothing in this agreement limits or excludes liability for death or personal injury caused by negligence, for fraud or fraudulent misrepresentation, or for anything else that cannot be limited by law.
  3. Subject to that, neither of us is liable to the other for loss of profit, revenue, data, business or goodwill, or for indirect or consequential loss, and our total liability to you in any 12 months is limited to the greater of what we paid you in that period and 100 pounds.
  4. You will compensate us for losses, costs and claims by third parties that arise from your items, your listings or your breach of this agreement, including claims that your item infringes someone's rights or breaks data protection law.

12. Confidentiality

Each of us will keep confidential any non-public information the other shares under this agreement, such as review notes, unreleased features or business terms, and use it only for this agreement, unless the law requires otherwise.

13. Changes to this agreement

We may change this agreement, for example for new features, paid sales, or changes in the law. We will tell you about material changes in the developer console or by email at least 30 days before they take effect, unless a change is needed sooner for legal or security reasons. If you do not agree, you may close your account before the change takes effect. If you keep publishing after that date, the new version applies.

14. General

  1. This agreement is governed by the law of England and Wales, and the courts of England and Wales have exclusive jurisdiction.
  2. Neither of us is responsible for delays or failures caused by events beyond our reasonable control.
  3. You may not transfer this agreement without our written consent. We may transfer it to a company that takes over the Store, and will tell you if we do.
  4. If part of this agreement is found to be unenforceable, the rest stays in force. If we do not enforce a right straight away, we can still enforce it later.
  5. This agreement is the whole agreement between us about publishing on the Store. Only you and we have rights under it.
  6. We send notices to the contact email address on your developer account. Send notices to us at [email protected].