Outliner by Alfred Fritz

Outliner by Alfred Fritz organizes shopping lists, tasks, ideas, memos, and small projects into collapsible outlines. Each outline can contain titled activities with notes, due dates, and completion status, and users can create as many outlines as they need. The app offers tree, to-do, due-date, and hashtag-grouped views, though some views require PRO. Activities can be moved and indented; PRO adds subtree editing, sorting, and sharing, along with search and formatted notes. PRO also enables synchronization with Google Tasks and Dropbox. The app imports and exports several formats, including OPML, plain text, CSV, Treepad HJT, and Treeline TRLN; HTML export is a PRO feature. The free Android version has basic features, no ads, and no sync. It costs nothing, while the Outliner Pro Key costs $5, paid once and unlocks PRO features. The maker says outlines are stored locally and are not sent to external servers unless cloud sync is configured. Android is the listed platform, with no desktop app.

Outliner combines nested task organization with multiple views and broad import and export options. Its free version covers basic use, while sync and other advanced tools require PRO; backup encryption and Google Tasks depth are limitations to consider.

It suits Android users who want to organize tasks and notes in nested lists, especially those needing multiple outline views or file-format options. Users who want sync, search, or enhanced editing need PRO.

Outliner by Alfred Fritz is an Android app for organizing tasks, notes, and small projects in nested outlines. It suits people who want a local-first planning tool with flexible file interchange; the trade-off is that sync and several useful editing tools sit behind a one-time PRO purchase.

Overview

The app turns shopping lists, to-dos, ideas, memos, and small projects into collapsible trees. Each outline can contain titled activities with notes, due dates, and completion status, and users can create as many outlines as they need. That structure is useful when a flat checklist cannot capture subtasks or related ideas, though users who need a polished cross-platform workspace should look elsewhere.

Outliner offers tree, to-do, due-date, and hashtag-grouped views, with some views requiring PRO. Activities can be reordered and indented in the basic app, while PRO adds sorting and subtree cut, copy, paste, and sharing actions. Its format support is a practical strength: import options include CSV, Natara Bonsai, Treepad HJT, Treeline TRLN, OPML, and plain text; export also includes HTML with PRO.

Key features

Views, editing, and search

Different views let users approach the same outline as a hierarchy or as a task list organized by due date or hashtag. PRO search can look through activity names and notes, either across all outlines or within the open one. That is helpful once a collection grows, but it means the free tier is better suited to straightforward lists than to managing a large, searchable archive.

Sync, privacy, and backups

PRO can sync with Google Tasks and Dropbox; the tutorial also documents Treeline and OPML synchronization options. Google Tasks officially supports only two task levels, and the maker warns that experimental multilevel sync may be removed and can flatten outlines. Users relying on deeper hierarchies should treat Google Tasks sync as a potential compromise, not a dependable mirror of the full tree.

Unless cloud sync is configured, the app says it sends no data to external servers; Google Play lists no data collected or shared. Outlines are stored in Android internal flash memory and, according to the maker, are usually protected by Android security on a non-rooted, PIN- or password-protected phone. Backups need care: SD-card and Dropbox backups are unencrypted, so losing access to those copies can expose their contents.

Pricing

The Free plan costs nothing and includes basic features, no ads, and no sync. It fits users who want local outlines and basic organization without a recurring charge, but gives up PRO views and tools, formatting, search, sync, and broader export options.

Outliner Pro Key costs $5, paid once and unlocks PRO features in the free Android app. That is the practical choice for users who need the advanced editing, formatted notes, search, sync, or HTML export. PRO access requires installing the separate key app; one purchased Play Store account can install it on multiple Android devices.

Platforms

Outliner is available for Android phones, tablets, and Chromebooks. There are no desktop apps, so it is not a fit for users who need a native desktop version.

Who it's for

Choose Outliner if you want nested lists, due dates, several ways to view tasks, and the ability to move outlines through common tree and text formats. The free plan covers basic local use, while the one-time key is aimed at people who need richer editing or cloud synchronization. Look elsewhere if encrypted backups or reliable synchronization of more than two task levels are essential.

Pros and cons

• Pros: Unlimited outlines and titled activities support organizing projects without a stated outline cap.
• Pros: OPML, CSV, plain-text, and other import and export formats make it easier to work with outline data across tools.
• Pros: The free version has no ads and keeps data off external servers by default.
• Cons: Several views, search, formatted notes, and sync require PRO, limiting the usefulness of the free tier for more involved workflows.
• Cons: SD-card and Dropbox backups are unencrypted, making those backup paths a security concern.
• Cons: Google Tasks is limited to two levels, while experimental deeper sync risks flattening outlines or being removed.

Alternatives

For a broader comparison, see Outlining Software.

• Workflowy is worth considering if you want outlining across Android, iOS, desktop, and web platforms, though its free Basic plan caps new nodes at 100 per month.
• Bulletlist is a fit for readers who prefer a free app with every feature unlocked and no caps, and need its Android, iOS, macOS, or web platforms.
• CarbonFin Outliner suits Apple-device users who want an iPhone and iPad app, with an online companion for syncing, editing, printing, importing, exporting, and sharing outlines.
• Checkvist is another hierarchical-list option for readers who want sharing and collaboration alongside Android, iOS, and web access.
• Cloud Outliner is an alternative for readers using Apple devices who want Pro sync across iPhone, iPad, and Mac.
• Dynalist may suit readers who want unlimited items and documents in its free plan, across Android, iOS, desktop, and web.
• Legend offers unlimited documents and items on its free plan for readers considering a pane-based workspace across desktop and mobile platforms.
• Logseq is an option for readers seeking free personal use across mobile, desktop, and web platforms.

Verdict

Outliner is a sensible choice for Android users who want a flexible hierarchy, broad file interchange, and basic local organization at no cost. Its strongest case is the combination of unlimited outlines and a modest one-time PRO upgrade; look elsewhere if you need encrypted backups, desktop apps, or dependable deep Google Tasks synchronization.