Legal

Terms of Use

Version 1.0 · effective 2026-10-07

These terms cover get.pulse.synccy.com, the website with the early-access list, the Pulse apps for iPhone and Mac, the Pulse web app, the hooks on your Mac, and the server they talk to.

The short version

  1. Pulse is free. Nothing on the website, in the apps or on the web asks you to pay.
  2. It is early: Pulse is not in the App Store, and its server lets in only accounts the maker has added. There is no sign-up.
  3. What you send through Pulse stays yours. The server keeps it only to show it on your devices, and only for a while — see the privacy page.
  4. An answer you send from Pulse acts on your Mac, just as if you had typed it there. What you allow is your call.
  5. The server runs on one machine in the maker's home and comes as it is. It can be down, and a notification can arrive late or not at all.
  6. Do not attack or overload the server or get around its limits, and keep your keys to yourself. You can stop at any time and delete your account in Pulse's settings.
  7. Dutch law applies. If you are a consumer, you keep the protection of the law where you live.

1. Who these terms are between

These terms are between you and Jarrel Pothoff, a private individual in the Netherlands, who builds Pulse alone — “the maker” below. There is no company behind Pulse, so no Chamber of Commerce or VAT number is printed here. Pulse is not made by, affiliated with or endorsed by Anthropic.

By using the website, the apps, the web app, the hooks or the server, you accept these terms. If you do not accept them, do not use Pulse.

How Pulse handles your data is on the privacy page. These terms do not change anything there.

2. What Pulse is

Pulse lets you follow your Claude Code sessions away from your Mac. It has three parts: the hooks on your Mac, which report what Claude Code is doing; a server, which stores those events and sends notifications through Apple; and the iPhone and Mac apps and the web app, which show them and send your answers back. Your Mac then types an answer into the session's iTerm tab. From the apps you can also start a new session or close one.

The apps connect to pulse.synccy.com, the maker's server, unless you enter another address. If you use a server of your own, these terms still cover the apps, but what happens on that server is up to whoever runs it.

Pulse is not in the App Store, and for now it is only for people the maker invites. There is no sign-up: signing in with Apple only opens an account the server already has — on a new server, the very first account is made with its device key — and on pulse.synccy.com only the maker adds accounts. Signing up for the early-access list is free, does not open an account and gives no right to one.

On every Pulse server, the oldest account is its owner; on pulse.synccy.com that is the maker. The hooks report to the owner's account. The owner sees every account on that server and every device signed in to it, and can end those sign-ins. Everyone else sees only their own.

Pulse needs Claude Code, iTerm2 and Apple's services, and works only as well as they do. Their own terms apply to them. Pulse does not give you a Claude Code account and does not change what Claude does.

3. Who may use Pulse

You must be 18 or older to use the Pulse apps, the web app and the server. You use Pulse for yourself; do not sign in for someone else, or let someone else sign in as you.

4. Pulse is free

Pulse costs nothing. There is no purchase, subscription or payment in the apps, the web app, the server or on this website, and Pulse shows no advertising. If Pulse ever asks for money, these terms will change first (section 16), and nothing will cost you anything unless you agree to it.

5. Your account and your keys

You sign in with Apple, or — on a server with a single account — with its device key. Treat the device key like a password: anyone who has it can read everything on that server, and can answer permission requests and start sessions on your Mac. Do not share it, do not put it in a public place, and tell the maker at once if you think someone else has it.

You can sign out in Pulse's settings, and on the web you can also end the sign-ins of your other devices. You can delete your account in the settings too: under Account in the apps, and under Server on the web. The server then erases it at once. What is erased, what stays on your device, and the two exceptions are on the privacy page. Deleting the apps alone does not erase anything on the server.

6. What you send stays yours

Your prompts, Claude's messages, the commands and the answers that pass through Pulse are yours. The maker claims no right to them. The server stores them only to show them on your devices and to carry your answers to your Mac, and keeps them only for the times on the privacy page.

Pulse is not an archive. The server keeps only recent events, and erases older ones on its own. Claude Code's own record of a session stays on your Mac.

7. Your answers act on your Mac

When you allow or deny a request, pick an option, send a message, or start or close a session from Pulse, your Mac does it in iTerm. It has the same effect as doing it on the Mac yourself. Read what Claude asks before you allow it: the choice, and what follows from it, are yours.

An answer only works while your Mac can pick it up. If the Mac is off, asleep or offline for too long, the server drops the answer: after 15 minutes for a choice, 60 minutes for a message, 10 minutes for a new session and 2 minutes for closing one. Nothing is typed then.

8. Using the server fairly

The server is one small machine that other people rely on. Do not:

  • try to get into an account, a device or data that is not yours, or use a key that was not given to you;
  • probe, scan or attack the server or the website, or try to get around their limits — for example the limit on how often you can try to sign in;
  • send the server more than Pulse itself does — scripts, floods or anything that slows it down for others;
  • give others access through your account, or sell, rent or offer Pulse to others as a service;
  • use Pulse for anything that is against the law.

Found a weakness? Tell the maker in one of the ways in section 17, and keep the details out of public places. A report like that is welcome.

9. Licence

The maker gives you a personal, free and non-transferable licence to use the apps, the web app and the hooks for yourself, for as long as these terms apply to you. The software, the name and the design stay the maker's.

Nothing here limits what the law lets you do anyway, such as studying how the software works, or making it work with other programs, as far as articles 45k to 45m of the Dutch Copyright Act (Auteurswet) allow.

10. As it is

Pulse is early software, made and run by one person, for free. It is offered as it is. The default server runs on one machine in the maker's home in the Netherlands. It is down for a while each night while that machine is backed up, and can be down at other times: for maintenance, or when power or the connection fails.

Notifications go through Apple, and Apple does not promise to deliver every one. A notification can arrive late or not at all, and a session can wait for an answer that never comes. Do not rely on Pulse for anything where a missed or late notification could cause harm.

Nothing in these terms takes away rights the law gives you that cannot be set aside.

11. Liability

What is never limited. Nothing in these terms excludes or limits the maker's liability for death or personal injury, for intent or gross negligence, for the loss or corruption of your data, or for anything else that cannot lawfully be limited. The cap below is read subject to this paragraph.

Otherwise, the maker's total liability for Pulse is limited to €100. If you do not use Pulse as a consumer, the maker is also not liable for indirect or consequential damage, such as lost profit or lost work.

12. Changes to Pulse

Pulse changes often while it is early. The maker may add, change or remove features, and may stop letting people in, or stop running the default server. Before that server stops for good, the maker will tell its users where possible, so you can ask for a copy of what it holds for you (privacy, section 5).

13. Ending

You can stop at any time: delete your account (section 5), remove the apps and the hooks, and leave the list on the unsubscribe page.

The maker may switch off your account or end its sign-ins if you break these terms, if your use puts the server or other people at risk, or when the maker stops letting people in. Unless it is urgent, the maker tells you first and why. Switching an account off ends every sign-in on every device at once. It does not erase what the server holds for that account: ask, in one of the ways in section 17, and it is erased by hand.

Sections 6, 9 (the last paragraph), 11 and 14 still apply after these terms end.

14. Law and disputes

If you are a consumer, Dutch law applies, but this choice does not take away the protection of the mandatory rules of the country where you live (Article 6(2) of the Rome I Regulation). You may take the maker to court in the country where you live, or in the Netherlands; the maker may take you to court only in the country where you live.

If you are not a consumer, Dutch law applies, and the competent court in the Netherlands decides.

If something is wrong, tell the maker first (section 17). There is no arbitration, and you give up no right to go to court.

15. Apple

Pulse is not in the App Store yet. If you get it there one day, Apple's Standard Licensed Application End User License Agreement is your licence for the app, and these terms add to it where it allows. If you get a test build through Apple's TestFlight, Apple's terms for TestFlight apply as well.

These terms are between you and the maker, not Apple. Apple is not responsible for Pulse or its content, has no duty to support or maintain it, and does not handle claims about it — those go to the maker. Apple and its subsidiaries may enforce these terms as a third party.

16. Changes to these terms

The version and date at the top are the record. A change that takes something away from you applies only 30 days after the maker has told you, so you can stop and delete your account first. A change that only helps you, or one the law requires, can apply at once.

17. Contact

Two ways reach the maker, and a person reads both:

  • Reply to any e-mail you received from the list.
  • Testing Pulse through TestFlight? Use Send Beta Feedback in TestFlight. More on the support page.