None declared
None declared
On the label it is low-risk: LockDay collects some data but says none of it is linked to you or used for tracking. The sensitive items are location. In total the label lists 4 data types; 41% of calendar planners we checked declare tracking.
LockDay privacy in one look
- 1Collects nothing
- 2Not linked
- 3Linked
- 4Tracks you
Built only from the developer's App Store label. It describes disclosure, not tested behaviour.
LockDay collects some data but says none of it is linked to your identity, and none is used for tracking.
Did LockDay ask for something?
Pick the permission prompt you saw. We compare it with what LockDay's developer declared.
LockDay lists Location on its label. Choose While Using and turn off Precise Location if the feature works without it.
User Content is not on LockDay's label. That can be fine: data used only on your iPhone does not have to be declared. If the data would need to leave the phone for the feature to work, ask why it is missing.
Contacts is not on LockDay's label. That can be fine: data used only on your iPhone does not have to be declared. If the data would need to leave the phone for the feature to work, ask why it is missing.
LockDay declares no tracking, so a tracking prompt would contradict its label. Decline it, and consider reporting the mismatch to Apple.
Health & Fitness is not on LockDay's label. That can be fine: data used only on your iPhone does not have to be declared. If the data would need to leave the phone for the feature to work, ask why it is missing.
A permission is what the app can reach on your iPhone; the label is what the developer says leaves it. They answer different questions.
What LockDay collects, explained
| Data type | What it covers | Where to limit it |
|---|---|---|
| LocationSensitiveNot linked to you | Where your phone is, either precisely (street level) or approximately (city or area). | Settings › Privacy & Security › Location Services: choose Never or While Using, and turn off Precise Location if the app does not need it. |
| PurchasesNot linked to you | What you have bought or tend to buy. | Review in-app marketing settings; subscriptions are listed in Settings › [your name] › Subscriptions. |
| IdentifiersNot linked to you | An account ID, screen name, customer number or a device-level ID such as the advertising identifier. | Settings › Privacy & Security › Tracking: turn off Allow Apps to Request to Track, or tap Ask App Not to Track when prompted. |
| Usage DataNot linked to you | What you tap, open and view inside the app, plus which ads you have seen. | There is no single iOS switch. Look for an analytics or personalised-ads toggle in the app's own settings. |
What LockDay's label means for you
LockDay's label has 4 types under “Data Not Linked to You”. A data type can appear in more than one section when it is used for different purposes — for example, identifiers used for both analytics and advertising.
Every type on LockDay's label is in the “not linked” section, so the developer says the data is stripped of anything that identifies you before it is used. That is typical of anonymous analytics and crash reporting. Not linked is still collected: the data leaves your phone.
The items that deserve the most attention are location. Location history reveals home, work and routines. Precise location deserves the most scrutiny.
Calendars reveal where you will be and who you meet. Planner apps may also read your other calendars and reminders. Check the Calendars permission level (full access or add-only) in Settings › Privacy & Security › Calendars.
Among the 152 calendar planners in our snapshot with a label, 41% declare tracking, 60% collect data linked to you and 26% say they collect nothing. LockDay lists 4 data types, more than the average of 2.9 for this group.
Productivity apps tend to collect the work you do in them — documents, notes and files — so User Content is common. The question is whether it syncs to the developer's servers and how it is protected there.
Settings to check for LockDay
- 1
Tracking
Settings › Privacy & Security › Tracking. If “Allow Apps to Request to Track” is off, apps cannot ask, and they are told to treat you as having declined. You can also turn it off for this app alone.
- 2
Location
Settings › Privacy & Security › Location Services › LockDay. Choose While Using or Never, and switch off Precise Location if a city-level answer is enough.
- 3
Lock the app
On iOS 18 and later, touch and hold the icon and choose Require Face ID. Anyone who picks up your unlocked phone then needs your face, fingerprint or passcode to open it.
- 4
Notifications
Settings › Notifications › LockDay › Show Previews: When Unlocked keeps message and account details off the Lock Screen.
Does LockDay track you?
There is no “Data Used to Track You” section on LockDay's label.
Lock LockDay behind Face ID
- Find LockDay on your Home Screen or in App Library.
- Touch and hold the icon until the quick-actions menu opens.
- Tap Require Face ID (or Require Touch ID / Require Passcode, depending on your iPhone).
- Tap Require Face ID again to confirm. LockDay now asks for authentication every time it opens.
The lock is an iPhone feature, so it works whether or not LockDay has a passcode of its own. It does not change what the app sends to its developer.
About LockDay
| Developer | Dat Pham |
| App Store category | Productivity (also Lifestyle) |
| Latest version | 2.4.0, released October 2026 |
| First released | September 2026 |
| Requires | iOS 17.0 or later |
| Size | 75 MB |
| Age rating | 4+ |
| Languages | 32 (AR, HR, CS, DA, NL, EN, FI, FR…) |
| Bundle ID | phamtiendat1099.LockDay |
The current version shipped in October 2026, so the app is actively maintained and its label is likely current. Labels are updated by developers when practices change.
What the label cannot tell you
- A label is self-reported. Apple publishes the developer's answers and can reject apps that misrepresent them, but it does not independently verify what LockDay sends.
- It does not say where data is stored, how long it is kept, whether it is encrypted, or which companies receive it. The privacy policy covers those points.
- Optional data counts: if a feature lets you add something (a profile photo, a phone number), the type is listed even if you never use the feature.
- Data handled only on your iPhone is not 'collected', so a no-collection label is compatible with an app that reads your files locally.
- Third-party sign-in, payment processors and SDKs are supposed to be included, but a label can lag behind a new version.
The question to ask LockDay's developer: Does it need to read my calendars, or only add events?
LockDay vs similar calendar planners
- Calendar All-In-One Planner
- LockDay (this app)
- SuperPlanner
- SHIFTAR
- Elisi
- EchoDay
- Calendar Planner App
- CalendarMe
Fewer types is not automatically safer: a cloud backup app has to collect your files to work. Compare like with like.
Look up any of our apps in seconds, or put two labels side by side.
Apps similar to LockDay
All calendar planners → Who tracks you? A–Z → Apps that collect location → Privacy label decoder →
Your LockDay privacy checklist
Done. You have applied every control the label points to.
True or false?
- Right.Not quite.
False: there is no Data Used to Track You section on LockDay's label.
- Right.Not quite.
Labels are self-reported by developers. Apple can reject or remove apps that misrepresent practices, but it does not audit each label.
- Right.Not quite.
True: Location appears on its label, in the Not Linked to You section.
- Right.Not quite.
It is collected and sent; the developer says it is de-identified rather than tied to your account or device.
- Right.Not quite.
Apple's rules require apps to work the same whether or not you allow tracking.