Periodic - Periodic Table 2026 v2.1
APK · 5.4 MB · version code 21 · Android 6.0+ · uploaded Jun 17, 2026
- Signature matches the Google Play version Details
Quick check before downloading
Answer this to unlock the download. It keeps automated downloaders away.
File information
- Version
- v2.1 (21)
- Uploaded
- Jun 17, 2026
- Size
- 5.4 MB
- Requires
- Android 6.0+ (API 23)
- CPU support
- x86 32-bit, x86 64-bit, ARM 32-bit, ARM 64-bit
- Screen
- Small screens and larger
- MD5
- 3fe78f17c8376ce479737570ccf3c5aa
- Signing certificate (SHA-1)
- 74:78:1B:77:F7:CE:85:13:48:D1:97:76:4F:2D:7A:3D:C5:7F:9A:74
- Signed by
- CN=One Person, OU=CEO, O=One Person Co., L=Cottage Grove, ST=Minnesota
- File name
- com-onepersonco-periodic-21-75239092-3fe78f17c8376ce479737570ccf3c5aa.apk
- Package
- com.onepersonco.periodic
- Downloads (all versions)
- 10K+
- Age rating
- PEGI 3 · Everyone
What's new in v2.1
An update to support modern Android devices. Enjoy the improved periodic table view, tablet views, and select your default view. Bug fix for latest version of Android and certain devices.
Permissions (1)
This version requests 1 permission, none of them sensitive.
- Internal broadcast protection (app-defined) com.onepersonco.periodic.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Security & authenticity
Security rating: Trusted
Signing certificate
- Signature matches the Google Play version Checked by the source store on Jun 17, 2026.
- Certificate issued to “One Person Co.” This is the certificate of the Google Play version.
- Same certificate as the 3 other versions checked
Store checks
- Developer signature verified Jun 17, 2026
- Validated against Google Play Jun 17, 2026
- Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020
Scans come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (3 other versions compared). AAPKs doesn't scan files itself.
How to install Periodic - Periodic Table 2026 on Android 6.0+
You'll need about 10.8 MB of free space.
- Download the APK — tap Download APK above (5.4 MB). Chrome shows “File might be harmful” for every APK file; choose Download anyway only if you trust this file.
- Open the file — tap the download notification, or open Files › Downloads and tap com-onepersonco-periodic-21-75239092-3fe78f17c8376ce479737570ccf3c5aa.apk.
- Allow the install (first time only) — Android 8 and later asks for permission the first time an app opens an APK: tap Settings in the prompt, turn on Allow from this source, then go back. Manual path: Settings › Apps › Special app access › Install unknown apps (on Samsung: Settings › Apps › ⋮ › Special access). On Android 7 and older: Settings › Security › Unknown sources.
- Check the file (optional) — the MD5 of the downloaded file should be 3fe78f17c8376ce479737570ccf3c5aa. If it differs, the file is damaged or was changed: delete it and download again.
- Tap Install — Android asks “Do you want to install this app?”. If Google Play Protect shows a warning, read it before you continue: the source store rated this file Trusted, but only install apps from sources you trust. If an earlier version is installed, this one only installs as an update when it is signed with the same certificate (SHA-1 shown above).
- Open Periodic - Periodic Table 2026 — tap Open on the install screen, or find it in your app drawer.
Common install problems
- “App not installed” — a version signed with a different certificate, or a newer version, is already installed (Android doesn't allow downgrades). Uninstall it first; back up your data, because uninstalling deletes it.
- “There was a problem parsing the package” — the file is incomplete, or your Android is too old (this version needs Android 6.0+). Download it again, or pick an older version.
- “App not compatible with your device” — this build contains native code for x86 32-bit, x86 64-bit, ARM 32-bit, ARM 64-bit only. Devices with other processors can't install it.
- Blocked by Play Protect — Play Protect checks apps from outside the Play Store. Only continue if you trust the source.