The terms for using Twine.

The service

Twine is an app for iPhone and Android and a sync service that runs in the cloud, made and run by Lee Bridges (“Twine”). It copies events between calendars you connect, on rules you write, and keeps the copies in step. These terms cover the app and the service. You agree to them when you start using Twine. If you do not agree, do not use it. The privacy policy says what Twine reads, stores and writes.

Twine works with Google Calendar, Microsoft 365 and Apple iCloud. Their own terms keep applying to your calendars, and Twine can only do what they allow. Twine has no calendar view and does not replace Google Calendar, Outlook or Apple Calendar.

Licence and ownership

Twine gives you a personal licence to use the app and the service for calendars you are allowed to use. The licence is not exclusive, cannot be passed on, and lasts for as long as you follow these terms. The app, the service and this site, with their names, design and code, belong to Twine.

Your calendars and everything on them stay yours. Twine claims no rights over them. It needs only your permission to read and write them as your rules say, and that permission ends when you disconnect the account.

Your account and your calendars

You do not need an account. Rules are kept in the cloud from the first launch, tied to the app on your phone, so the sync runs with the app closed. A Twine account, with Apple, Google, or an email address and password, lets the same rules follow you to another phone. It is also the only way back to them if the phone is lost or the app is deleted. Keep your sign-in and any app-specific password to yourself.

Connect only calendars you are allowed to use. When a calendar belongs to your employer, a client or someone else, their rules on sharing apply, and following them is up to you.

Twine acts on your rules and nothing else. It reads what a rule needs and writes what the rule allows. You choose what crosses over (Title only, Renamed “Busy” or Full copy) and where it lands. A full copy onto a shared calendar shows those details to everyone who can see that calendar.

Twine never deletes an event it did not make, and changes one only when you link it to a rule. When two rules want the same event, or a copy might already exist, Twine pauses and asks, and nothing is written until you decide.

You must be at least 13 years old to use Twine, or older where your local law requires.

Subscriptions and billing

Free covers one rule, checks when you tap Sync now, 60 days ahead and 7 days of history, and its copies carry a “Synced by Twine” line. Twine Plus and Twine Pro are auto-renewing subscriptions, monthly or yearly, bought in the App Store or Google Play at the price the store shows when you buy. What each plan includes is listed under Plans and in the app.

Apple or Google takes the payment. A subscription renews at the end of each period unless you cancel before then in the store’s subscription settings; the App Store needs at least 24 hours’ notice before the period ends. Deleting the app or your Twine account does not cancel a subscription. Refunds are handled by Apple or Google under their policies.

Plan limits are applied by Twine’s service. When a subscription ends or you move to a smaller plan, no rule, setting or history is deleted: the oldest rules keep running up to the new limit, the rest show as paused, two-way rules pause outside Twine Pro, and checks drop to the new plan’s pace. Your choices are kept for when the plan comes back.

Three things do change. Copies that came from an Also read calendar are removed, because Also read belongs to Twine Pro. Copies further ahead than the new plan looks stay where they are, and catch up with their originals once they come within its range. History older than the new plan shows goes out of view, and comes back with the plan.

There is no free trial at launch. If one is offered later, the store shows its length and the price that follows before you buy.

Changes to plans and to Twine

Twine will change. Features may be added, changed or removed, and plan limits and prices may change, for reasons such as a change at Google, Microsoft or Apple, security, the law, or the cost of running the service. A price change for an existing subscription reaches you through the App Store or Google Play, with the notice and consent they require, before it applies.

If a change takes away something you are paying for, or makes a paid plan clearly worse, Twine tells you in the app at least 30 days before, unless the law, a security problem or a provider forces it sooner. You can then cancel, and ask for a refund of the unused part of what you paid: through Apple or Google where their process covers it, and from Twine where it does not.

These terms may change too. The new version is posted here with a new date at least 30 days before it applies, and a change that matters is also announced in the app. Using Twine after it applies means you accept it. If you do not, stop using Twine and cancel any subscription before then.

If Twine is ever discontinued, you get reasonable notice in the app, copies already made stay on your calendars, and the unused part of a prepaid subscription is refunded the same way.

If Twine is sold or merged, these terms pass to the new owner, who must honour them. The privacy policy says what happens to your data.

Acceptable use

Use Twine only with accounts you are allowed to use, and only for what it is for: copying events between calendars you can sign in to.

Do not use Twine to get around your employer’s or a client’s rules on calendar sharing. Do not try to bypass plan limits, overload or interfere with the service, reverse-engineer it beyond what the law allows, or resell it.

Twine may pause rules, disconnect accounts or suspend access that breaks these terms or harms the service or other people. It says why when it does, unless the law forbids it.

Warranties and liability

Twine is provided as it is. It is built to keep copies in step, but a copy can be late or missing, and a fault at a provider can double one: checks run at the pace of your plan, and providers can be slow, go down, change what they allow or stop accepting Twine’s sign-in. When a provider fails, only the rules that touch it pause, and their copies are left alone. Do not rely on copies as the only record of a commitment.

To the extent the law allows, Twine gives no warranty beyond what these terms say, including any implied warranty of satisfactory quality, merchantability or fitness for a particular purpose. Twine is not liable for indirect or consequential loss, such as a missed or double-booked appointment, lost business or lost data, and its total liability for all claims together is limited to what you paid for Twine in the 12 months before the first of them. Nothing here limits liability that the law does not allow to be limited, or your rights as a consumer where you live.

Ending the agreement

You can stop at any time, and every exit is clean. All of these are in the app, and none needs an email:

• Delete a rule: its copies are removed, back to two years ago, originals untouched.
• Disconnect an account: its rules pause, copies already made stay.
• Remove every copy Twine made: Twine’s copies are deleted from every destination calendar, back to two years ago.
• Sign out of a Twine account: the phone starts over while the cloud keeps syncing for the account.
• Delete account: everything Twine holds for you, and your sign-in, are deleted. Copies stay on the calendars unless you removed them first. Without a Twine account, the same place offers Delete everything, which deletes the same data for this phone.

Deleting the app stops neither the sync nor a subscription. Delete the account first, and cancel a subscription in the App Store or Google Play. If the app is already gone, revoke Twine’s access in your Google or Microsoft account, or delete its app-specific password in your Apple ID settings: the rules that use that account pause at once. The privacy policy says how to have the rest deleted.

Twine may suspend or end your access if you break these terms, or with notice if Twine is discontinued. Either way, copies already made stay where they are, and you can still write to lee@twine-sync.com to have your copies removed and your data deleted.

The parts of these terms that are meant to outlast the agreement, such as the limits on liability and the governing law, still apply after it ends.

App Store and Google Play

If you got Twine from the App Store, Apple asks for these points to be said plainly:

• These terms are between you and Twine, not Apple. Twine alone is responsible for the app, for its support, and for any claim about it, including a claim that it infringes someone’s rights or breaks consumer or privacy law. Apple has no duty to maintain or support it.
• Your licence covers the Apple devices you own or control, under the usage rules in Apple’s Media Services terms.
• If the app fails a warranty that applies to it, you can tell Apple, and Apple refunds what you paid for the app. Apple has no other warranty obligation for it.
• You confirm that you are not in a country under a US government embargo or named by it as a “terrorist supporting” country, and that you are not on a US government list of prohibited or restricted parties.
• When you use Twine you also follow the terms of the other services involved, such as Google’s, Microsoft’s and Apple’s for your calendars.
• Apple and its subsidiaries are third-party beneficiaries of these terms and may enforce them against you.

Apple’s standard Licensed Application End User License Agreement also applies to the iPhone app. Where it and these terms disagree about the Twine service, these terms apply.

If you got Twine from Google Play, the Google Play Terms of Service also apply. Google is not responsible for Twine or its support.

Governing law

These terms are governed by the laws of the State of North Carolina, USA, without regard to conflict-of-law rules. Disputes go to the state and federal courts located in Forsyth County, North Carolina, unless the consumer law where you live gives you another right.

If part of these terms is found unenforceable, the rest still applies.

Contact

Questions about these terms go to lee@twine-sync.com, or use the Support page. Twine is made by Lee Bridges, Winston-Salem, NC, USA.