At a glance
- Latest version
- v2.2.3 (223)
- Updated
- May 4, 2026 (5 months ago)
- APK size
- 39.5 MB
- Requires
- Android 7.0+ (API 24)
- CPU support
- ARM 32-bit, ARM 64-bit
- Graphics
- OpenGL ES 3.0+
- Category
- Lifestyle (app)
- Listed since
- Mar 3, 2022 (at least)
- Permissions
- 6
- Developer contact
- [email protected]
- Privacy
- Developer's privacy policy
About this APK
Secret Memo is an app by SINgoon in the Lifestyle category, listed since at least March 2022. It includes native code for ARM 32-bit and ARM 64-bit, so it runs on practically every phone.
Since version 2.2.1, the APK grew from 31.3 MB to 39.5 MB and the minimum Android version rose from 4.4 to 7.0. It asks for 6 permissions, none of them sensitive. It asks for the same permissions as version 2.2.2. The app can read the advertising ID that ad and analytics services use.
Description
From the listing uploaded by “appupdater”.
Version history
3 versions are listed, going back to v2.2.1. Since v2.2.2 it requires Android 7.0+.
Security & authenticity
Signing certificate
- Signature matches the Google Play version Checked by the source store on May 4, 2026.
- Certificate issued to “SINgoon” This is the certificate of the Google Play version.
- Same certificate as the 2 other versions checked
Store checks and file details
- Developer signature verified May 4, 2026
- Validated against Google Play May 4, 2026
- Signed byCN=Myung-Ho Shin, O=SINgoon, L=Seoul, C=ko
- Signing certificate (SHA-1)C9:81:FA:F4:F1:44:9D:BE:9E:5B:F2:64:E6:2D:A6:D0:70:A9:B3:BA
- File MD54e63afe2ff1a090d1d51f7663e17e53b
- Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020
Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (2 other versions compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.
Permissions (6)
Secret Memo requests 6 permissions, none of them sensitive.
- Advertising ID com.google.android.gms.permission.AD_ID
- Full network access android.permission.INTERNET
- Prevent the device from sleeping android.permission.WAKE_LOCK
- Run at startup android.permission.RECEIVE_BOOT_COMPLETED
- Run foreground services android.permission.FOREGROUND_SERVICE
- View network connections android.permission.ACCESS_NETWORK_STATE
Required hardware & features
- Portrait screen android.hardware.screen.portrait
Secret Memo APK: questions and answers
Is there a version of Secret Memo for older Android phones?
The current version needs Android 7.0 or later. Version 2.2.1 is the newest listed build that installs on Android 4.4 and later. Get version 2.2.1 · All versions
Can I install this APK over the version I already have?
Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.
Is the Secret Memo APK safe?
No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. Its signature matches the Google Play version. It is signed with the same certificate as the 2 other versions checked. After downloading, check that the file's MD5 is 4e63afe2ff1a090d1d51f7663e17e53b.
