Effective date: 10 November 2026
Publisher: Sachin Singh, individual developer, India. In this policy, "we" and "us" mean the publisher.
Contact: skydays.support@gmail.com. That address is also the support address for Sky Days, our other app, so please put "Crewturn" in your subject line.
Crewturn is a rotating shift calendar for Android, free with banner ads. It has no account and we run no server for it. We don't receive your schedule, notes, swap names or pay rates, and the app doesn't put them in ad requests. They're kept on your phone, and can leave it only in the ways listed under "Calendar copy" and "Backup and sharing". One of those, Android's own backup, may already be on through your phone's settings. The app also uses Google's ad software, which collects some data about your phone and how you use the app. This page explains both. See also the Terms of Use.
A work schedule can show when you're away from home, so think about who can see yours. Any home-screen widget you add shows your shifts: the next-shift widget shows today's and the next one, and the week widget shows a shift word for each day. When an alarm rings, the shift name can show on your lock screen, on the ring screen and in its notification, and other alarm notifications can show it too, depending on your phone's lock-screen settings. A calendar you copy to, a backup file you save and a picture you share can all be seen by anyone with access to them. Backup files aren't encrypted by the app.
Your shift pattern, days you changed, notes, names you enter for shift swaps and who owes whom a shift, pay rates, alarm settings, and your choices in Settings. The app also keeps short lists of upcoming shifts and alarms (shift names and times only) so widgets can draw and alarms can ring after a restart, and a short list of alarms that were missed or not stopped, so it can tell you. We can't see any of it.
We hold very little, but not nothing.
The free version shows a banner ad from Google AdMob, using the Google Mobile Ads SDK, on the Home and Hours screens only. The app starts Google's ad software when you finish setup. In the UK, it first shows the consent form described below. The first banner appears the next day; if you restore a backup, the app keeps that backup's first-use date, so banners can start sooner. Banners don't show when you open the app from an alarm, a notification or a widget, while an alarm is sounding, for 10 minutes after you stop or snooze an alarm, or once you own Remove ads. The ad request is made by Google's software, and your schedule, notes, swap names and pay rates are not part of it.
Google's disclosure says its SDK collects, for advertising, analytics and fraud prevention:
Google says it encrypts this data in transit. Google decides how it is used and kept, under Google's Privacy Policy and how Google uses data from partner apps. Google's own description is at its AdMob data disclosure. We never receive your schedule, notes or pay rates, so we can't sell them. Ad data is different, and the section on US state rights explains how some state laws may treat it.
You can reset or delete your Advertising ID in your phone's settings (usually under Privacy, then Ads). Once you own Remove ads, the app stops requesting ads and, from your next launch, doesn't ask Google's ad software to start. That software stays installed with the app, and part of it may still load when the app opens. If you later get a refund, ads and the ad software come back.
We chose to put Google's ad software in the app, and Google decides what happens to the data after it receives it. In the UK, we consider ourselves responsible together with Google for collecting that data and passing it to Google, and Google alone is responsible for what it does next. You can come to either of us. Google may work with other advertising companies, and the consent form lists them.
In the UK, the app shows Google's consent form before it starts Google's ad software. If you say no, you won't get personalised ads, but the app may still start the ad software and show "limited ads". Limited ads don't use your data to personalise ads. Google still receives your IP address to deliver the ad, and it may store information on your phone to detect fraud. Google's consent tool has to run first to work out your region and save your answer, so it connects to Google before you choose. Until it has finished, no ads load, and if it can't finish, for example with no connection, it tries again next time.
You can change your answer at any time under Ad privacy choices in Settings. That option appears once the consent tool has run on a normal launch of the app. If you opened the app from an alarm, a notification or a widget, Settings may show a link to this page instead; open the app from its icon and the option is there, except while an alarm is sounding or for 10 minutes after you stop or snooze one, when the app shows no ads and doesn't ask. If you own Remove ads the app doesn't run the consent tool, and it requests no ads. Where consent isn't required, the app starts the ad software at the same points without a form, and Settings points to this page.
Remove ads is a one-time purchase, sold by us through Google Play, which takes payment on our behalf. Google's privacy policy applies to the payment. We don't see your card details. The app asks Google Play whether your Google account owns the purchase. Google's billing software may log technical details about the purchase process.
If you turn it on, the app asks for calendar permission at that moment, not before. It writes your shifts for the next four months into a phone calendar you pick. Each event holds only the shift's start and end times, time zone, a title such as "Night shift" or "12-hour shift", using whatever shift name you entered, and a marker so the app can recognise its own events. Notes, swap names and pay are never included. To let you pick, the app reads the names of the calendars on your phone and the accounts they belong to, on your phone only. The app only changes events it made itself. Turning it off, or using Delete all my data, tries to remove the events the app made. If it can't, for example because you turned off calendar permission, you can remove them yourself in your calendar app. If the calendar you chose syncs to an account (for example Google Calendar) or is shared with other people, those shifts then follow that calendar's own rules and its provider's privacy policy.
Settings has Delete all my data. It removes your pattern, changed days, notes, swap names, pay rates, alarms, the widgets' list of shifts, alarm notices, any waiting snooze, shared images and your backup link from the phone. It also tries to remove the calendar events the app made; see "Calendar copy". Any widget you placed then asks you to open the app. Uninstalling the app also removes its data from the phone. Backup files you saved stay where you put them, and Android may keep a cloud backup until it is next updated. Data that Google holds from ads is subject to Google's controls, not ours. We can delete what we hold ourselves if you ask.
We don't make decisions about you using only automated means that have legal or similarly significant effects. Google uses automated systems to choose which ad to show.
The app keeps your data in Android's private storage for the app, protected by your phone's own security. The app adds no separate encryption, and backup files aren't encrypted. Google says its ad software encrypts data in transit using TLS. Our support email is a Gmail account, and only the publisher reads it.
We are in India, and we read support emails and purchase records there, so that data is handled outside the UK. When you email us, you send your data to us directly. Google processes data in the US and other countries. For UK data, Google's terms use the UK's standard contract clauses, which you can read here. Data you keep in the app doesn't leave your phone through us.
You can ask us for a copy of your data, and ask us to correct it, delete it or restrict how we use it. You can object to our use based on legitimate interests, and you can always object to direct marketing. We don't send any. You can withdraw consent under Ad privacy choices in Settings. We'll reply within one month. We can't link data held by Google to you, because the app has no account and we never hold your Advertising ID, so for that data we'll help you use My Ad Center and your phone's ad settings. Data on your phone is yours to export or delete yourself.
Crewturn isn't offered in the EEA. If you use it while you're there, Google's consent form may appear and you have the same rights described for the UK.
If you're unhappy with how we've used your data, email us with "Data complaint" in the subject line. We'll acknowledge it within 30 days and tell you the outcome without undue delay. You can also complain to the Information Commissioner's Office at any time.
Privacy laws in California and other states may give you rights, depending on where you live and the size of the business. Some of those laws may not apply to us. We offer the choices below to all US users anyway.
Google's ad software collects identifiers and activity for advertising, which can include targeted advertising. Some state laws, including California's, may treat that as a "sale" or "sharing" of personal information, even though we receive no separate payment for that data and don't see it ourselves.
Crewturn is for adults aged 18 and over. It's not directed to children, and we don't knowingly collect their data. We have no way to point Google to a particular phone, so if you think a child has used the app, delete it from that phone and reset or delete the Advertising ID in the phone's settings. If you email us about this, we'll delete your email once we've answered and help however we can.
If the app changes what it does with data, we'll update this page and its effective date, and where a change matters to you we'll say so in the app's update notes on Google Play.