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Is Calendar Planner ProntoCal Safe?

Calendar Planner ProntoCal privacy label · by YUTO OKURA · checked November 2026

  • Collects location
  • Recently updated
App Privacy label Developer-reported · checked November 1, 2026
Used to track you
0types

None declared

Linked to you
8types
Not linked to you
0types

None declared

Short answer

Mostly a question of trust: Calendar Planner ProntoCal collects data linked to you but declares no tracking. The sensitive items are location, user content and browsing history. In total the label lists 8 data types; 41% of calendar planners we checked declare tracking.

At a glance

Calendar Planner ProntoCal privacy in one look

Data exposure on the label
Linked to you
  1. 1
  2. 2
  3. 3
  4. 4

Built only from the developer's App Store label. It describes disclosure, not tested behaviour.

Verdict from the label
Linked to you, no tracking

Calendar Planner ProntoCal collects 8 data types tied to your identity but declares no tracking.

Try it

Did Calendar Planner ProntoCal ask for something?

Pick the permission prompt you saw. We compare it with what Calendar Planner ProntoCal's developer declared.

It asked me for access to…
Tap a prompt to compare it with the label.
Matches the label

Calendar Planner ProntoCal lists Location on its label, linked to you. Choose While Using and turn off Precise Location if the feature works without it.

Matches the label

Calendar Planner ProntoCal lists User Content on its label, linked to you. Choose Limited Access and pick only the photos you want to share.

Not on the label

Contacts is not on Calendar Planner ProntoCal'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.

Not declared on the label

Calendar Planner ProntoCal declares no tracking, so a tracking prompt would contradict its label. Decline it, and consider reporting the mismatch to Apple.

Not on the label

Health & Fitness is not on Calendar Planner ProntoCal'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.

Line by line

What Calendar Planner ProntoCal collects, explained

Data typeWhat it coversWhere to limit it
LocationSensitiveLinked 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.
User ContentSensitiveLinked to you Messages, photos, videos, audio recordings, documents and support chats you create or upload. Settings › Privacy & Security › Photos: choose Limited Access or None; review Microphone and Files access too.
Browsing HistorySensitiveLinked to you Websites and other content you viewed that is not part of the app. In browsers, use private tabs and clear history; Settings › Apps › Safari has Safari's own controls.
Search HistoryLinked to you Searches you run inside the app. Look for a clear-history or private-search option in the app.
PurchasesLinked to you What you have bought or tend to buy. Review in-app marketing settings; subscriptions are listed in Settings › [your name] › Subscriptions.
IdentifiersLinked 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 DataLinked 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.
DiagnosticsLinked to you Crash logs, launch times, hang rates and energy use. Settings › Privacy & Security › Analytics & Improvements › Share With App Developers controls what Apple passes on; the app's own crash reporting is separate.
Reading the label

What Calendar Planner ProntoCal's label means for you

Calendar Planner ProntoCal's label has 8 types under “Data 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.

Calendar Planner ProntoCal declares no tracking, which means the developer says it does not combine your data with other companies' data for advertising or sell it to data brokers. The data linked to you — location, user content, browsing history, search history, purchases, identifiers, usage data and diagnostics — is still tied to your identity, typically through an account, and is covered by the developer's privacy policy and retention rules.

The items that deserve the most attention are location, user content and browsing history. 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. Calendar Planner ProntoCal lists 8 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.

On your iPhone

Settings to check for Calendar Planner ProntoCal

  1. 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. 2

    Location

    Settings › Privacy & Security › Location Services › Calendar Planner ProntoCal. Choose While Using or Never, and switch off Precise Location if a city-level answer is enough.

  3. 3

    Photos

    Settings › Privacy & Security › Photos. Limited Access lets you pick exactly which pictures the app can see; Add Photos Only lets it save without reading your library.

  4. 4

    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.

  5. 5

    Notifications

    Settings › Notifications › Calendar Planner ProntoCal › Show Previews: When Unlocked keeps message and account details off the Lock Screen.

Cross-app tracking

Does Calendar Planner ProntoCal track you?

No tracking declared

There is no “Data Used to Track You” section on Calendar Planner ProntoCal's label.

Does Calendar Planner ProntoCal track you? Full answer and how to stop it →

iOS 18 and later

Lock Calendar Planner ProntoCal behind Face ID

  1. Find Calendar Planner ProntoCal on your Home Screen or in App Library.
  2. Touch and hold the icon until the quick-actions menu opens.
  3. Tap Require Face ID (or Require Touch ID / Require Passcode, depending on your iPhone).
  4. Tap Require Face ID again to confirm. Calendar Planner ProntoCal now asks for authentication every time it opens.

The lock is an iPhone feature, so it works whether or not Calendar Planner ProntoCal has a passcode of its own. It does not change what the app sends to its developer.

From the App Store record

About Calendar Planner ProntoCal

DeveloperYUTO OKURA
App Store categoryProductivity (also Utilities)
Latest version2.4.0, released October 2026
First releasedJune 2025
RequiresiOS 26.0 or later
Size63 MB
Age rating4+
Languages2 (EN, JA)
Bundle IDyuto.ProntoCal

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.

Read with care

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 Calendar Planner ProntoCal 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 Calendar Planner ProntoCal's developer: Does it need to read my calendars, or only add events?

How it compares

Calendar Planner ProntoCal vs similar calendar planners

Data types listed on each App Store privacy label
Tracks youLinked to youNot linkedCollects nothing

Fewer types is not automatically safer: a cloud backup app has to collect your files to work. Compare like with like.

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All calendar planners → Who tracks you? A–Z → Apps that collect location → Privacy label decoder →

Do it now

Your Calendar Planner ProntoCal privacy checklist

Tick what you have done
Tick each step as you do it on your iPhone.

Done. You have applied every control the label points to.

Quick quiz

True or false?

  1. Q1Calendar Planner ProntoCal's privacy label says it uses data to track you.
    Right.
    Not quite.

    False: there is no Data Used to Track You section on Calendar Planner ProntoCal's label.

  2. Q2Apple tests every app to confirm its privacy label is accurate.
    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.

  3. Q3Calendar Planner ProntoCal collects Location.
    Right.
    Not quite.

    True: Location appears on its label.

  4. Q4Data “Not Linked to You” is never sent off your iPhone.
    Right.
    Not quite.

    It is collected and sent; the developer says it is de-identified rather than tied to your account or device.

  5. Q5Tapping “Ask App Not to Track” can stop an app from working.
    Right.
    Not quite.

    Apple's rules require apps to work the same whether or not you allow tracking.

Questions people ask

Calendar Planner ProntoCal privacy FAQ

Is Calendar Planner ProntoCal safe to use?
Based on its App Store privacy label, calendar Planner ProntoCal collects 8 data types tied to your identity but declares no tracking. Whether that is acceptable depends on what you will store in it. The label is developer-reported, not an independent security test.
Does Calendar Planner ProntoCal track you?
No. Calendar Planner ProntoCal's label has no Data Used to Track You section.
What data does Calendar Planner ProntoCal collect?
Location, user content, browsing history, search history, purchases, identifiers, usage data and diagnostics. Of these, location, user content, browsing history, search history, purchases, identifiers, usage data and diagnostics are linked to your identity.
Who makes Calendar Planner ProntoCal?
YUTO OKURA, according to the App Store. It was first released in June 2025 and the current version is 2.4.0.
Can I lock Calendar Planner ProntoCal with Face ID?
On iOS 18 or later, touch and hold Calendar Planner ProntoCal's icon and choose Require Face ID (or Touch ID / Passcode). This is an iPhone feature and works for most downloaded apps, whether or not the app has its own lock. If you don't see the option, update iOS.
How does Calendar Planner ProntoCal compare with other calendar planners?
Across 152 calendar planners with labels in our snapshot, 41% declare tracking and 26% say they collect no data. Calendar Planner ProntoCal lists 8 data types against an average of 2.9.
Does it need to read my calendars, or only add events?
The privacy label cannot answer that. Look for it in Calendar Planner ProntoCal's privacy policy or support pages, linked from the App Store listing. Check the Calendars permission level (full access or add-only) in Settings › Privacy & Security › Calendars.
How do I delete my data from Calendar Planner ProntoCal?
Apps that let you create an account must also let you start account deletion from inside the app (an App Store rule since June 2022). Deleting the app from your iPhone alone does not delete data already sent to the developer.
Facts on this page come from Calendar Planner ProntoCal on the App Store, as reported by the developer. Checked 2026-11-01. How we collect data · Report a correction