XDA landed on a productivity truth this week: the best tool for a small group of friends is the one they will actually open. Notion loses to WhatsApp every time when the audience is a couple planning a trip, a college group scheduling a dinner, or four cousins pooling their holiday shopping. The right tool is not the most powerful one. It is the one that replaces the ping-pong group chat without asking the group to learn a new interface. We tested 7 mobile apps that hit that mark.
What to look for in a shared productivity app
The shortlist has to be short. Friend groups do not do product research.
- Onboarding under 30 seconds, no forced sign-in with a corporate SSO
- Shared lists visible from a widget, no “open the app to see the list”
- Notifications that do not go to spam because the app pretended to be a game
- A free tier that is not a demo for a business plan
- Comment threads on individual items, so we can discuss the birthday cake without leaving the list
- Sync fast enough that the person who added the item does not double-add it a minute later
Quick comparison
| App | Best for | Platforms | Free plan | Starting price/mo | Rating |
|---|---|---|---|---|---|
| Todoist | Serious shared to-do with light collab | Android, iOS, web, desktop | Yes, 5 shared projects | 4 | 4.5 (Play Store) |
| Google Keep | Zero-friction shared lists and notes | Android, iOS, web | Yes | Free | 4.6 |
| TickTick | Shared lists plus a calendar | Android, iOS, web, desktop | Yes | 3 | 4.6 |
| Trello | Card-based planning for group projects | Android, iOS, web, desktop | Yes, 10 boards | 5 | 4.4 |
| Any.do | Simple, mobile-first shared lists | Android, iOS, web | Yes | 3 | 4.4 |
| Cozi Family Organizer | Households and family calendars | Android, iOS, web | Yes | 3 | 4.5 |
| Google Tasks | Already installed on every Android | Android, iOS, web | Yes | Free | 4.4 |
1. Todoist, best for a serious shared to-do that non-technical friends will still use
Todoist is the app to pick when one person in the group cares about productivity and the others just want something that works. Shared projects appear alongside personal ones with a small icon. Task assignment is a two-tap operation, and the natural-language date parser understands “next Sunday” and “every Tuesday at 7.”
Where it falls short: the free tier caps shared projects at 5. And the widget on Android is fine, not great.
Pricing:
- Free: 5 personal projects, 5 shared projects, 5 filters
- Paid: 4/mo Pro (unlimited projects, reminders, task duration, calendar layout)
Platforms: Android, iOS, Windows, macOS, Linux, web
Download: Google Play | App Store
Bottom line: the anchor of a shared productivity stack. Everybody can use it, one person can lead it.
2. Google Keep, best for zero-friction shared lists
Google Keep is the app most non-technical Android users already have. A note or checklist can be shared with anyone with a Google account in one tap. The widget is one tap from the home screen. Voice notes are transcribed. Colors let a group of four find their own list at a glance.
Where it falls short: no due dates on individual items, no task assignment, and search is weak past a hundred notes.
Pricing:
- Free: fully free, tied to a Google account
- Paid: none
Platforms: Android, iOS, web, ChromeOS
Download: Google Play | App Store
Bottom line: the tool most groups already have. Use it before asking anyone to install anything new.
3. TickTick, best for shared lists plus a calendar
TickTick wraps a to-do app around a real calendar. Shared lists sync across the group, everyone sees the same calendar, and a Pomodoro timer lives in a corner for when planning becomes doing. Habit tracking, checklists, and location-based reminders round out the free tier.
Where it falls short: the Premium upsell in the app is aggressive, and it takes a week to notice which features actually needed it.
Pricing:
- Free: shared lists, calendar view (limited), 99 tasks per list
- Paid: 3/mo Premium (full calendar sync, more subtasks, filters, priorities)
Platforms: Android, iOS, Windows, macOS, Linux, web
Download: Google Play | App Store
Bottom line: the tool if the group cares more about “when” than “what.”
4. Trello, best for group projects
Trello shines when the shared work is a project rather than a list. A trip has cards for flights, hotels, activities, and packing. Everyone drags cards around. Comments live on each card, checklists nest inside cards, and attachments (photos of receipts, PDFs of confirmations) live alongside them.
Where it falls short: overkill for a grocery list, and the free tier now caps at 10 collaborators per workspace.
Pricing:
- Free: 10 boards per workspace, unlimited cards
- Paid: 5/mo Standard (unlimited boards, custom fields, advanced checklists)
Platforms: Android, iOS, Windows, macOS, web
Download: Google Play | App Store
Bottom line: the tool for planning a wedding, a trip, or a group move.
5. Any.do, best for simple, mobile-first shared lists
Any.do is the closest thing on this list to Google Keep with due dates. Shared lists, item assignment, and a clean widget. The Moment view forces us through open tasks each morning, and grocery lists auto-categorize into produce, dairy, and pantry.
Where it falls short: the free tier is thinner than it looks, and the AI-assistant features push a Premium subscription hard.
Pricing:
- Free: shared lists, basic reminders
- Paid: 3/mo Premium (unlimited themes, location reminders, WhatsApp reminders)
Platforms: Android, iOS, Windows, macOS, web
Download: Google Play | App Store
Bottom line: pick it if the group has settled around a phone-only workflow and does not want desktop nagging.
6. Cozi Family Organizer, best for households
Cozi Family Organizer is aimed at families sharing a household calendar, meal plan, and errand list. Everybody sees the same view, everybody can add. It solved the “who is picking up who” problem for a lot of parents before generic to-do apps caught up.
Where it falls short: aggressively themed for families with kids. A group of four college roommates will find the tone odd.
Pricing:
- Free: shared calendar, lists, recipes
- Paid: 3/mo Gold (birthday tracker, contacts, no ads, mobile month view)
Platforms: Android, iOS, web
Download: Google Play | App Store
Bottom line: household-shaped groups only. Ignore for friend groups.
7. Google Tasks, best because it is already there
Google Tasks is the option nobody remembers to consider. It is inside Gmail, inside Calendar, and there is a standalone Android app. Shared lists arrived recently, and though the feature set is thin, the friction is zero: everyone already has a Google account. That single fact wins arguments.
Where it falls short: notifications are quieter than the paid apps, and there is no widget worth using.
Pricing:
- Free: fully free, tied to Google account
- Paid: none
Platforms: Android, iOS, web (via Gmail, Calendar, or the standalone app)
Download: Google Play | App Store
Bottom line: the app to try before asking anyone to install anything new.
How to pick the right one
- If nobody has any productivity habit yet: Google Keep or Google Tasks. Both are already there.
- If one person will lead and others will follow: Todoist.
- If the shared thing is a project, not a list: Trello.
- If planning revolves around dates: TickTick.
- If the group is a household with a kitchen: Cozi.
- If the group is phone-only and simple: Any.do.
The trap is picking Notion because it is powerful. It is powerful, and nobody in the group will open it after week two.
FAQ
What is the simplest shared to-do app for non-technical friends?
Google Keep. One tap to share, works from a widget, everyone already has a Google account. It has no due dates, which is fine for grocery lists and bad for schedules.
Can I share Todoist lists without paying?
Yes. The free tier includes 5 shared projects with up to 5 collaborators each. Most friend groups fit inside that comfortably.
Which app is best for planning a group trip?
Trello. Cards for flights, hotels, activities, packing. Comments on each card. Attachments for confirmations. It is what trip-planning software would look like if we designed it from scratch.
Do these apps work on iPhones too?
All of them. Every app on this list has both an Android and iPhone version, and lists sync across.
What about WhatsApp? Do we still need any of this?
WhatsApp is fine for messages. It is bad for lists, because a list scrolls out of view the moment somebody sends a meme. Even Google Keep is a better list, because the list stays put.
