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Is Grid Diary Classic Safe?

Grid Diary Classic privacy label · by Xiamen Sumi Network Technology Co., Ltd. · checked November 2026

  • No label details
  • Not updated in 2+ years
App Privacy label Developer-reported · checked November 1, 2026
No Details Provided

The developer has not provided privacy details on the App Store.

Short answer

There is no privacy label to judge yet. Grid Diary Classic's developer has not provided privacy details on the App Store, so nothing is disclosed about collection, linking or tracking. Treat permissions carefully and check the privacy policy before you add anything personal.

At a glance

Grid Diary Classic privacy in one look

Data exposure on the label
No label details

The developer has not filled in the label, so the app cannot be placed on the ladder.

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

Verdict from the label
No details provided

Grid Diary Classic's developer has not yet provided privacy details on the App Store.

Try it

Did Grid Diary Classic ask for something?

Pick the permission prompt you saw. We compare it with what Grid Diary Classic's developer declared.

It asked me for access to…
Tap a prompt to compare it with the label.
No label to compare

Grid Diary Classic has no privacy details, so you cannot check this prompt against a statement. Allow it only if the feature you want obviously needs location.

No label to compare

Grid Diary Classic has no privacy details, so you cannot check this prompt against a statement. Allow it only if the feature you want obviously needs photos.

No label to compare

Grid Diary Classic has no privacy details, so you cannot check this prompt against a statement. Allow it only if the feature you want obviously needs contacts.

No label to compare

Without a label you cannot tell how tracking data would be used. Declining costs you nothing: apps must work without tracking permission.

No label to compare

Grid Diary Classic has no privacy details, so you cannot check this prompt against a statement. Allow it only if the feature you want obviously needs health data.

A permission is what the app can reach on your iPhone; the label is what the developer says leaves it. They answer different questions.

Reading the label

What Grid Diary Classic's label means for you

Grid Diary Classic's App Store page shows “No Details Provided”. Apple requires a privacy label when a developer submits an update, so this usually means the app has not been updated since labels became mandatory in December 2020, or the developer has not completed the form. It does not mean the app collects nothing, and it does not mean it collects everything: it means there is no statement to hold the developer to.

Until a label appears, your iPhone's permission prompts are the most reliable signal. Every time Grid Diary Classic asks for photos, location, contacts, the microphone or tracking, you can say no and see whether the feature you need still works.

Journals collect your private thoughts, moods and often your location and photos. A lock screen inside the app is not the same as encryption of the synced entries. Check whether entries sync to the developer's server and whether that sync is end-to-end encrypted; export your journal regularly.

Lifestyle apps cover family, home and personal organisation, and often combine location, contacts and photos in one place.

On your iPhone

Settings to check for Grid Diary Classic

  1. 1

    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.

  2. 2

    Notifications

    Settings › Notifications › Grid Diary Classic › Show Previews: When Unlocked keeps message and account details off the Lock Screen.

Cross-app tracking

Does Grid Diary Classic track you?

Not disclosed

Without a label there is no tracking statement to rely on. You can still refuse tracking at the iOS prompt.

iOS 18 and later

Lock Grid Diary Classic behind Face ID

  1. Find Grid Diary Classic 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. Grid Diary Classic now asks for authentication every time it opens.

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

Lock or hide Grid Diary Classic: step-by-step guide →

From the App Store record

About Grid Diary Classic

DeveloperXiamen Sumi Network Technology Co., Ltd.
App Store categoryLifestyle (also Education)
Latest version4.3.0, released October 2019
First releasedFebruary 2013
RequiresiOS 9.0 or later
Size94 MB
Age rating4+
Languages15 (CS, NL, EN, FI, FR, DE, IT, JA…)
Bundle IDcom.sumiapp.GridDiary

The current version shipped in October 2019, 7 years before our snapshot. Apps that are not updated may not support newer iOS privacy controls, and an abandoned app will not get security fixes.

Also by Xiamen Sumi Network Technology Co., Ltd.: Grid Diary.

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 Grid Diary Classic 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 Grid Diary Classic's developer: Can anyone at the company read my entries?

How it compares

Grid Diary Classic vs similar journal & diary apps

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.

Checking another app?

Look up any of our apps in seconds, or put two labels side by side.

Keep exploring

Apps similar to Grid Diary Classic

All journal & diary apps → Who tracks you? A–Z → Privacy label decoder →

Do it now

Your Grid Diary Classic 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. Q1“No Details Provided” means Grid Diary Classic collects no data.
    Right.
    Not quite.

    It means the developer has not filled in the label. Collection is unknown, not zero.

  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. Q3An app with a “Data Not Collected” label cannot read any of your photos.
    Right.
    Not quite.

    It can read photos you give it access to. Processing on your device is not collection; only data sent off the phone counts.

  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

Grid Diary Classic privacy FAQ

Is Grid Diary Classic safe to use?
Grid Diary Classic's developer has not provided App Store privacy details, so there is no disclosure to judge. That is not evidence of wrongdoing, but limit permissions and avoid storing sensitive data until a label appears.
Who makes Grid Diary Classic?
Xiamen Sumi Network Technology Co., Ltd., according to the App Store. It was first released in February 2013 and the current version is 4.3.0.
Can I lock Grid Diary Classic with Face ID?
On iOS 18 or later, touch and hold Grid Diary Classic'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.
How does Grid Diary Classic compare with other journal & diary apps?
Across 173 journal & diary apps with labels in our snapshot, 32% declare tracking and 21% say they collect no data. Grid Diary Classic has no label to compare.
Can anyone at the company read my entries?
The privacy label cannot answer that. Look for it in Grid Diary Classic's privacy policy or support pages, linked from the App Store listing. Check whether entries sync to the developer's server and whether that sync is end-to-end encrypted; export your journal regularly.
How do I delete my data from Grid Diary Classic?
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 Grid Diary Classic on the App Store, as reported by the developer. Checked 2026-11-01. How we collect data · Report a correction