Diary with PIN Password Lock
v2.1 · 14.5 MB · code 11
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File information
UpdatedFeb 12, 2026
PublishedFeb 5, 2021
Packagecom.ProDataDoctor.Diary
Versionv2.1 (11)
Size14.5 MB
MD536262c74c833214372b149faa6f2d8e7
Min SDK24
Malware scanTRUSTED
Signature SHA193:1B:3E:82:82:01:BA:80:EF:21:F2:35:17:B3:C3:B2:35:CB:37:5F
SignerCN=Tarun Tyagi, OU=prodatadoctor.com, O=Pro Data Doctor Pvt. Ltd., L=Ghaziabad, ST=Uttar Pradesh, C=IN
Total downloads100,000
This version100,000
DeveloperPro Data Doctor Pvt. Ltd.
Age ratingEveryone
What's new in v2.1
In this version we have improved Fonts and Text Styles.
Added more graphical elements in Personal Diary.
Better Password Lock Pattern Security and Notes Safety.
Additional Scrapbook and Drawing Canvas Features to express emotions and creativity.
Choices of Creative Fonts, Text Styles and Cool Clip arts.
Creative Diary and Notes options and Stationery Features.
Added more graphical elements in Personal Diary.
Better Password Lock Pattern Security and Notes Safety.
Additional Scrapbook and Drawing Canvas Features to express emotions and creativity.
Choices of Creative Fonts, Text Styles and Cool Clip arts.
Creative Diary and Notes options and Stationery Features.
Security scan
TRUSTED
- Developer signature verified 2026-02-12
- Signature SHA1 93:1B:3E:82:82:01:BA:80:EF:21:F2:35:17:B3:C3:B2:35:CB:37:5F
- File MD5 36262c74c833214372b149faa6f2d8e7
How to install Diary with PIN Password Lock v2.1 on Android 7.0 Nougat+
Takes about 2 minutes. You'll need roughly 14.5 MB of free storage.
- Grab com.ProDataDoctor.Diary_11.apk — hit the Download button above (14.5 MB). If your browser warns about APK files, choose Keep or Download anyway — that warning fires on every APK, not just this one.
- Trust your browser to install — on Android 8+ go to Settings → Apps → Special access → Install unknown apps, pick the app you downloaded with (Chrome, Firefox, Files, etc.), and flip Allow from this source. On older Android, toggle Unknown sources under Security.
- (Optional) Verify the file — compute the MD5 of the downloaded APK and make sure it matches 36262c74c8332143…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.ProDataDoctor.Diary_11.apk in your Files app under Downloads, then tap it. Android's package installer will appear.
- Check the signer — the install screen will name the publisher. For this build it should read CN=Tarun Tyagi, OU=prodatadoctor.com, O=Pro Data Doctor Pvt. Ltd., L=Ghaziabad, ST=Uttar Pradesh, C=IN. If it doesn't match, cancel — you have the wrong file.
- Review permissions & tap Install — scroll the permission list, then confirm. If Play Protect flags it, tap Install anyway (this APK was scanned as TRUSTED).
- Done — open Diary with PIN Password Lock — tap Open on the install screen, or find the Diary with PIN Password Lock icon in your app drawer.
Common install errors for Diary with PIN Password Lock
- "App not installed" — usually means an older or differently-signed version is already on your device. Uninstall it first, then retry. Your data may be lost unless you back it up.
- "Parse error" — the APK is for a newer Android than yours. This version needs Android 7.0 Nougat or later. Pick an older build from the versions list below.
- "There was a problem parsing the package" — the download was interrupted. Delete the file and re-download over Wi-Fi.