Privacy policy
Last updated 28 August 2026
The short version: Meridian collects nothing. It has no accounts, no servers, no analytics, no advertising and no third-party code. Nothing you enter is transmitted to us or to anyone else, because the app contains no networking code at all.
This policy covers both the Meridian iPhone app (“the app”) and this website at meridian.mobily.io (“the site”). If anything here is unclear, write to hello@mobily.io and we will answer plainly.
0. Who is responsible
Mobily is the data controller for the limited processing described in this policy. You can reach us at hello@mobily.io for any question about it, including any request to exercise the rights set out in section 10.
1. Information we collect
None. The app does not collect, transmit, sell or share any personal information. We have no way to receive it: the app has no account system, contains no code that makes network requests, and includes no third-party software development kits. This describes the version of the app currently published; if that ever changed we would update this page and Apple's own privacy label before the new version shipped.
Specifically, the app contains:
- No analytics, crash-reporting or telemetry software of any kind
- No advertising, and no advertising or tracking identifiers — the app never needs an App Tracking Transparency prompt because it does not track you
- No accounts, sign-in, or user identifiers
- No cloud sync and no server-side storage
- No third-party dependencies — the app is built entirely from Apple’s own frameworks
- No usage logging — the one diagnostic the app keeps is the short alarm-engine note described in section 2, which is only ever shown to you, on your own device
2. What the app stores on your device
Meridian is useful because it remembers things. Everything it remembers is written to your device’s own private app storage, and is visible only to Meridian and to its home screen widget. It is removed when you delete the app.
| What | Why it is kept |
|---|---|
| People you add — a name, an optional photo thumbnail, the city you chose for them, the sleep and busy hours you set, and whether you switched on their two notification options | To work out whether they are callable right now, and to draw the People widget |
| Cities you add, and which one is primary | To show your clocks and drive the watch dial |
| Alarms — the time, the city it was set in, and its label | To ring at the right moment, and to survive daylight-saving changes |
| Watch faces you customise or save, and your dial preferences | To keep your watch looking the way you made it |
| Settings — 24-hour time, haptics, your own waking hours, default sleep hours | To keep the app behaving the way you set it |
| A short diagnostic note recording what the alarm system last did | To show you in Settings why an alarm behaved as it did. It never leaves the device |
3. Your contacts
Meridian never asks for access to your address book, and cannot read it. When you add someone “From Contacts”, iOS presents its own contact picker, which runs outside the app. The app receives only the single person you tap, and takes only two things from that record:
- Their display name
- Their small contact photo, if they have one
It does not read or store their phone number, email address, postal address, birthday, notes, or any other field. The people you add are never contacted by the app and never see anything.
Because a person’s name and photo can appear in a notification or in the People widget, they may be visible on your lock screen or home screen to anyone looking at your device. You can turn per-person notifications off, and you can remove any person at any time.
4. Your calendar
Meridian never asks for access to your calendar, and cannot read your events. “Add to Calendar” opens Apple’s own event editor, which runs outside the app, prefilled with a title and a time. Nothing is saved unless you tap Add, and the app never reads anything back.
One thing to be aware of: the system editor saves the event into whichever calendar account you choose. If you pick an account provided by another company, that event’s title and time will reach that company’s servers under its own privacy policy. Meridian does not send it — your own account does — but we would rather say so than let you assume otherwise.
5. Permissions the app requests
There are exactly two, and both are optional:
- Notifications — so alarms and any per-person alerts you switch on can reach you. Every notification is scheduled by your own device. There is no push server and no message about you is sent anywhere.
- Alarms — on iOS 26 and later, so alarms can ring as real system alarms rather than as notifications.
Meridian does not request, and cannot access, your location, camera, microphone, photo library, health data, or motion data. The lume that lights the dial after sunset is calculated from your time zone using standard astronomical equations — no location permission is requested or used.
6. Siri
Meridian offers a Siri shortcut for setting a city alarm. Anything you say to Siri is handled by Apple under Apple’s own privacy terms, which may involve Apple’s servers depending on your device and settings. The shortcut can reach only cities and alarms — it has no access to the people you have saved.
7. This website
The site is made of static files. It sets no cookies, runs no analytics, embeds no trackers, and loads no fonts, scripts or images from any other company — everything it needs is served from this domain. The clocks on the home page are calculated in your own browser and nothing about them is sent anywhere.
Our hosting provider records standard server logs, including IP addresses, as an ordinary part of serving and protecting the site. That processing rests on our legitimate interest in keeping the site available and secure, and those logs are retained only for the provider's normal short retention period.
8. Asking to join the beta
If you email us to request a TestFlight invitation, we necessarily receive your email address and whatever else you write. We use it for one purpose: to send you an invitation and to answer you.
- Lawful basis: your request — we are taking a step you asked for, and you can withdraw at any time by asking us to remove you.
- Who else sees it: to issue a TestFlight invitation the address must be entered into Apple's App Store Connect. Apple then processes it as part of running TestFlight, under Apple's own privacy policy.
- How long we keep it: for as long as the beta runs and you are in it. Ask us to remove you and we delete the address from our mailbox and from the tester list.
- We never add you to a mailing list, and we never pass your address to anyone other than Apple for this purpose.
9. Backups
Because your Meridian data lives in your device’s app storage, it is included in your own device backups — iCloud or local — in the same way as other apps’ data, and encrypted according to your backup settings. That is a feature of iOS that you control. It does not mean we receive anything; we do not.
10. Security
Meridian relies on iOS’s built-in device encryption and app sandboxing to protect what it stores. The app does not perform any cryptography of its own, and we make no claim to encrypt your data beyond what iOS does for every app. Since nothing is transmitted, there is no data in transit to intercept.
11. Children
Meridian is not directed at children, and since it collects no data, it collects no data from children.
12. Your rights
Data-protection law gives you rights to access, correct, export, restrict and delete the personal information we hold about you, and to object to our processing of it. The app sends us nothing, so in almost every case there is nothing for us to produce or erase — everything it has saved is on your device, under your control: delete any person, city, alarm or saved face from within the app, or delete the app to remove all of it at once.
The one exception is if you have emailed us, for example to join the beta. Write to hello@mobily.io and we will tell you what we hold, correct it, or delete it.
If you are in the UK or the EU and you are unhappy with how we have handled your information, you can complain to your data-protection authority. In the UK that is the Information Commissioner's Office, at ico.org.uk/make-a-complaint. We would rather you told us first so we can put it right.
13. Changes to this policy
If a future version of Meridian ever changes how information is handled, we will update this page and the date at the top before that version ships. If a change ever meant the app collected data, we would say so here in plain language, and Apple’s own App Store privacy label would change to match.
14. Contact
Questions about this policy, or about anything the app does: hello@mobily.io.