Productivity apps are easy to collect and hard to choose. The goal is not to build a perfect system; it is to reduce the number of places where a task, note or reminder can get lost. This shortlist focuses on free tools that solve one job well, work on Android, and make it possible to leave with your data.

How we selected these apps

This is an editorial shortlist, not a lab benchmark. We compared apps on five criteria: whether the core task works without an account, whether the free tier remains usable over time, whether data can be exported, what permissions the app requests, and how clear the privacy information is. We did not run timed usability tests or measure battery use. Features and prices change, so treat the table as a starting point and verify on the official page before committing.

The shortlist at a glance

AppBest forModelFree tierExportMain watch-out
TodoistFast task capture with datesCloud-firstYesProject exportFree-tier limits and upsell
Microsoft To DoMicrosoft and Outlook usersCloud-firstYesCheck current optionsEcosystem lock-in
Google KeepQuick notes and checklistsCloud-firstYesGoogle TakeoutLimited structure
JoplinPrivate, offline notesOffline-firstYes, open sourceJEX and MarkdownManual sync and backup
HabiticaHabit motivationCloud-firstYes, with purchasesCheck current optionsGame layer can distract

The “model” column describes the default design, not a guarantee. A cloud-first app can still work offline for a while; an offline-first app can still sync if you configure it. What matters is where the authoritative copy lives and what happens when the network disappears.

Task managers

1. Todoist (free tier)

Todoist is strongest at capture: type a task the way you would say it, add a date, and move on. The free tier is enough to test whether the workflow fits. The main questions are how many active projects you need and whether shared projects are part of your routine; those are the limits most likely to push you toward a paid plan.

Best for: personal task lists and light shared projects. Watch-out: the free tier is intentionally limited, so check the current project and collaboration limits before migrating years of tasks.

2. Microsoft To Do

Microsoft To Do is the pragmatic choice if your calendar, email or files already live in Microsoft 365. It is free, the interface is simple, and list sharing is straightforward. The trade-off is ecosystem gravity: the more you rely on Outlook and OneDrive, the more convenient it becomes — and the harder it is to leave.

Best for: people already using Outlook or Microsoft 365. Watch-out: export options are less flexible than a plain-text system, so test them before you depend on the app.

Note-taking apps

3. Google Keep

Google Keep is a good capture tool for short notes, checklists, photos and voice memos. It is fast and familiar, and it syncs across devices. It is not a knowledge base: labels and colours are useful, but long-form organisation quickly becomes messy.

Best for: shopping lists, quick ideas and temporary notes. Watch-out: it requires a Google account, and bulk export goes through Google Takeout rather than a native archive.

4. Joplin

Joplin is the privacy-focused option on this list. It is open source, stores notes locally, supports Markdown, and can encrypt sync data end-to-end. You can sync through a provider you choose, or keep everything on the device and back it up yourself.

Best for: long-term notes, research and anyone who wants to own the file. Watch-out: the initial setup is more technical than Keep, and backups are your responsibility. Test a restore before you trust it with important notes.

Habit tracker

5. Habitica

Habitica turns habits and tasks into a role-playing game: completing real tasks earns progress for a character. The game layer can help people who find plain checklists boring, and it can also become another source of notifications to manage.

Best for: people motivated by streaks, quests and visible progress. Watch-out: the social and game features can compete with the habit itself. Turn off the notifications that do not support the behaviour you are building.

Why offline-first matters

Apps that work without internet respect your time and privacy. A note you cannot open on a train, or a task list that spins while you are in a basement, is a design failure. Offline-first also changes the privacy equation: if the authoritative copy stays on your device, a server breach cannot expose it.

FreshGuard follows this philosophy — your food inventory works completely offline. Look for the same in your productivity apps: a clear local copy, a real export, and no mandatory account for the core feature.

How to choose in 10 minutes

  1. Pick one capture tool. If you need shared projects, start with Todoist. If you live in Microsoft 365, start with To Do. If you want quick notes, use Keep.
  2. Pick one reference tool. Use Joplin if you want Markdown, local storage and encryption; use your capture tool if you prefer simplicity.
  3. Pick one motivation tool, or none. Add Habitica only if habit streaks genuinely help you.
  4. Stop there. A second app for the same job is usually a second inbox.

A 30-minute setup

  1. Minutes 0–5: create one inbox and one project or notebook. Name them after outcomes, not departments.
  2. Minutes 5–15: move the three most important open tasks into the system. Delete the rest or schedule a review.
  3. Minutes 15–20: turn off every notification that does not require an action from you.
  4. Minutes 20–25: add a weekly review to your calendar. The review is the maintenance that keeps the system alive.
  5. Minutes 25–30: export a backup and confirm you can open it.

Privacy checklist for productivity apps

  • Can you use the core feature without an account?
  • Can you export everything in a standard format?
  • Does the app ask for contacts, location or background access? Why?
  • Is sync encrypted, and who holds the key?
  • Can you delete your account and your data?
  • Does the store listing match the permissions the app actually requests?

Related reading: understanding app permissions, the mobile app privacy checklist, why local storage matters, and how to organize your home screen.

Our top pick

For most users, Microsoft To Do for tasks and Joplin for notes covers the basics without a subscription. If shared projects matter more than ecosystem fit, Todoist is the better task manager. The “best” app is the one you will open consistently — and the one that lets you leave with your data.

Sources and further reading