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License agreement

Last updated 10 November 2026

1. About this agreement

This agreement is between you and Bubbletin, the business that makes the Bubbletin software ("we" or "us"). It covers the Bubbletin apps for Mac and Windows, their updates and their documentation (together, "Bubbletin").

By installing or using Bubbletin, you agree to this agreement. If you don't agree, don't install or use it. If you accept it for a company, you confirm you may bind the company, and "you" means the company.

Bubbletin is licensed to you, not sold. We and our licensors keep every right this agreement doesn't give you.

2. Your license

One license per person. When you buy Bubbletin, you get a license key for yourself, for personal or business use. You buy it once, and it doesn't expire. It's yours alone, so don't share it with anyone else.

Mac and Windows. Your license covers both the Mac and the Windows app, so you can use Bubbletin on a Mac, on a Windows computer, or on one of each. It can be active on one Mac and one Windows computer at a time.

Moving it. To move your license to another computer, choose Deactivate in Bubbletin's window on the one it replaces, then enter your key on the new one.

Businesses. A business needs one license for each person who uses Bubbletin.

Free trial. You may use all of Bubbletin free for 7 days from the first time it starts on a computer, to try it out. After that, it stops opening backups and saving what's in them until you enter a license key.

We don't promise to keep publishing updates, or that Bubbletin will keep working with any particular version of macOS or Windows (see section 5).

3. What you may not do

Unless the law lets you regardless, or an open-source license in section 4 allows it, you may not:

  1. copy Bubbletin, except to install it as this agreement allows;
  2. get around the free trial or any other limit built into Bubbletin;
  3. reverse engineer, decompile or disassemble Bubbletin;
  4. remove or change any copyright, trademark or license notice in it;
  5. rent, lend, sublicense or redistribute Bubbletin, or offer it as a service to others;
  6. open a backup with Bubbletin that you don't have the right to open, or use what's in it in a way the law doesn't allow;
  7. use Bubbletin for anything unlawful.

4. Open-source and third-party software

Bubbletin includes open-source software, such as Python, and parts other companies make, such as Microsoft. Each part comes under its own license, given in full in the THIRD-PARTY-NOTICES.txt file inside the app. Where one of those licenses gives you rights to its part that this agreement would otherwise take away, that license applies to that part.

Microsoft's runtime. The Windows app contains code that Microsoft licenses for use in other programs (the Visual C++ runtime). You may use it only as part of Bubbletin, on Windows. Sections 3, 9, 10 and 11 protect Microsoft and our other suppliers and licensors as they protect us. None of them gives you any warranty, and none of them is liable to you.

5. Updates

Bubbletin checks for updates soon after it starts and every few hours after that. It downloads new versions by itself and installs them the next time it starts. By using Bubbletin, you agree to receive these updates. This agreement covers them, unless an update comes with new terms.

Each new version of Bubbletin is made for the latest major version of macOS and of Windows. We don't give long-term support to any particular version of macOS or Windows. A new version of Bubbletin may not work on older versions of macOS or Windows, and we don't keep publishing versions of Bubbletin for them.

6. What Bubbletin sends over the internet

Bubbletin reads your backups on your computer, and never sends them, or anything in them, anywhere.

Bubbletin contacts only our update server, to check for and download updates, and Lemon Squeezy, to activate your license key and check it (see section 7). Like any website, each sees your IP address and what Bubbletin asks it for.

Bubbletin has no analytics or tracking. Its log stays on your computer unless you send it to us. Our privacy policy says more about what Bubbletin and this website keep.

7. Buying, refunds and license keys

Buying. Lemon Squeezy sells Bubbletin for us, as its reseller and merchant of record. When you buy Bubbletin, you buy it from Lemon Squeezy, under its own terms of sale. It takes the payment, charges any sales tax or VAT, and emails you a receipt with your license key. This agreement covers your use of Bubbletin.

Activating it. To unlock Bubbletin after the trial, enter your license key in its window. Bubbletin activates the key with Lemon Squeezy for that computer, which needs the internet. After that, it checks with Lemon Squeezy about once a day when it can that the license is still good. If it can't check for 7 days, it stops working until it can.

Refunds. If Bubbletin doesn't work for you, ask for a refund within 14 days of buying, at hello@bubbletin.com. Lemon Squeezy makes the refund. When a purchase is refunded, its license key stops working.

Your key. Keep your license key private. We may turn off a key that's been shared, published, used on more computers than it allows, or bought fraudulently.

8. Ending the license

  • You can end this agreement at any time by deleting Bubbletin.
  • It ends by itself if you break it.
  • When it ends, stop using Bubbletin and delete it.
  • Sections 3, 4 and 9 to 16 still apply after it ends.

9. No warranty

Bubbletin is provided "as is" and "as available". As far as the law allows, we and our suppliers and licensors give no warranties or conditions, express or implied. That includes any that it is of satisfactory quality, fit for a particular purpose, or free of errors or interruptions.

10. Limits on liability

As far as the law allows:

  1. we and our suppliers and licensors aren't liable for any indirect, incidental, special or consequential loss, or for lost data, profits or revenue;
  2. our total liability to you for everything to do with Bubbletin is limited to what you paid for it;
  3. Microsoft and our other suppliers and licensors aren't liable to you at all.

Nothing in this agreement limits liability for death or personal injury caused by negligence, for gross negligence, fraud or wilful misconduct, or for anything else the law doesn't let us limit.

11. Export

You may not use or export Bubbletin in breach of any export control or sanctions law that applies to it. That includes using it in an embargoed country, or if those laws bar you.

12. Your rights as a consumer

If you're a consumer, the law where you live may give you rights that this agreement can't take away, such as a repair or refund for faulty digital content. Nothing in this agreement limits them.

13. Disputes

If something goes wrong, email us at hello@bubbletin.com first, and we'll try to put it right. If you're a consumer, you can also bring a claim where you live when your law allows it.

14. Changes

We may update this agreement for later versions of Bubbletin, and will post each version on this page with its date. A change applies to updates installed after it's posted. It never takes away a license you've already paid for.

15. Support

We don't provide direct customer support for Bubbletin. There's no help desk, phone line or chat, and we don't give one-to-one help with installing, setting up, using or troubleshooting it. Your license doesn't include support of any kind, and we don't have to answer questions about Bubbletin or fix any particular problem you have with it.

You can still email us at hello@bubbletin.com about a refund, your license key or this agreement, and we'll do our best to reply. Bug reports and ideas are welcome too, and we read them, but we can't promise to answer each one or to change Bubbletin because of it.

None of this takes away your right to a refund in section 7, or your rights as a consumer in section 12.

16. General and contact

This is the whole agreement between us about Bubbletin. If a court finds part of it unenforceable, the rest still applies. If we don't enforce a term straight away, we can still enforce it later. You may transfer this agreement only with our permission. We may transfer it to whoever takes over Bubbletin.

Questions about this agreement? Email us at hello@bubbletin.com.