Outliner app icon

Outliner

Organize lists and memos in a tree-structure. Work with collapsable nodes.

Alfred Fritz · at.ff.outliner

Not rated yet 50K+ downloads v4.1.2 4 MB Android 5.0+ PEGI 3 · Everyone

  • Signature matches the Google Play version Details

At a glance

Latest version
v4.1.2 (76)
Updated
Aug 22, 2026 (2 months ago)
APK size
4 MB
Requires
Android 5.0+ (API 21)
CPU support
Any (no native code)
Category
Productivity (app)
Listed since
Sep 6, 2021 (at least)
Permissions
11 (2 sensitive)
Website
android-outliner.blogspot.com
Developer contact
[email protected]
Privacy
Developer's privacy policy

About this APK

Outliner is an app by Alfred Fritz in the Productivity category, listed since at least September 2021. It has no native code, so it runs on any Android processor.

Since version 3.6.1, the minimum Android version rose from 4.1 to 5.0. It asks for 11 permissions, 2 of them sensitive: find accounts on the device and modify shared storage. It asks for the same permissions as version 4.1.1.

What's new in v4.1.2

Version 4.1.1 + 4.1.2 * Fix: OK+Sibling leaves name empty * Fix: RichText Toolbar hidden on some devices * Fix: Homescreen Widget, stability improvements * Fix: OK sometimes does not save on old devices * Fix: Switch views Dropbox issues Version 4.1.0 * List of Activities, Tablet Mode ** rotate device, side by side view * Activity Edit, Keyboard Shortcuts * HTML Export, clickable Urls * various fixes and small improvements

Description

From the listing uploaded by “appupdater”.

Organize shopping lists, tasks, todo-lists, ideas and all kinds of memos. Or use Outliner as a project management tool. Do everything in a tree-structure with collapsable nodes. Features: * unlimited number of outlines * collapsable tree-structure * todo view * status * due date * import (csv, Natara Bonsai, Treepad HJT, Treeline TRLN, OPML, plain text) * export (csv, Natara Bonsai) * configurable outfit * quick edit * swipe to move activities left or right * move mode * drag & drop * colors * tablet mode * homescreen widget * languages: english, german, french, italian, japanese, spanish, russian, korean Features PRO version: * export HTML * import/export (csv, Natara Bonsai, Treepad HJT, Treeline TRLN, OPML, plain text) * sync Google Tasks (2 levels) * sync Natara Bonsai (USB and Dropbox) * sync Treepad (HJT, USB and Dropbox) * sync Treeline (TRLN, USB and Dropbox) * sync OPML (USB and Dropbox) (e.g. OmniOutliner) * open Outlines with FileManagers or cloud Apps (e.g. BoxCryptor, ownCloud, EDS TrueCrypt) * automatically finish branch (optional) * additional view: Show Due, Show #Hashtag * uncheck finished activities * delete finished activities * search * backup/restore all Outlines to/from SD-card * backup to Dropbox (optional) * launcher shortcuts for Outlines * themes * cut/copy/paste subtree (also between Outlines) * expand/collapse subtree * sort subtree * share subtree * zoom into subtree * configure default view for activity list * sharing target for texts * share Outlines * notification for due activities * Sort Order Outline List * Filter Outline List * Rich Text (format activity notes) Permissions: * Storage: access SD card for import/export/sync/backup * Contacts: find your Google account for Google Tasks Sync * Run At Startup: to renew backup schedule when booting * Network Access: for synchronization (Dropbox, Google Tasks) * Install Shortcuts: for a launcher shortcut to an outline * Read Log Information: to send an optional log file to the developer * Run Foreground Service: nightly backups and due notifications * Notifications: show notification while syncing or if errors occur Even if the official permission for account info is named "Contacts", Outliner does not and is not even able to read your contacts. Outliner just can list the Google Accounts on your device so that you are able to choose one for Google Tasks sync. If you deny this permission, Outliner works normally but you can't use Google Tasks Sync. PRO version: To get the PRO features please install "Outliner Pro Key" from the Google Play store.

Version history

5 versions are listed, going back to v3.6.1. Since v4.0.1 it requires Android 5.0+.

All 5 versions

Security & authenticity

Security rating: Trusted

Signing certificate

  • Signature matches the Google Play version Checked by the source store on Aug 22, 2026.
  • Certificate issued to “afritz” This is the certificate of the Google Play version.
  • Same certificate as the 2 other versions checked

Store checks and file details

  • Developer signature not checked yet Aug 22, 2026
  • Validated against Google Play Aug 22, 2026
  • Signed byCN=afritz
  • Signing certificate (SHA-1)65:BB:66:3A:AC:19:2B:E3:C7:16:68:58:1F:25:D4:A4:55:09:4B:66
  • File MD507e0639e04c5998d9ac3fef8f39096e1
  • 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 (11)

Outliner requests 11 permissions, 2 of them sensitive.

Required hardware & features

Outliner APK: questions and answers

Is there a version of Outliner for older Android phones?

The current version needs Android 5.0 or later. Version 3.6.1 is the newest listed build that installs on Android 4.1 and later. Get version 3.6.1 · 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 Outliner 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 07e0639e04c5998d9ac3fef8f39096e1.

Tags

More Productivity apps