The short version
Every tool on this page can hold a task list. The difference is what happens when one person has to run several separate worlds from one login. Todoist, Trello and Notion are built around one shared space that you slice with projects, boards or pages; Google Tasks is a personal list with no sharing at all. Taskinger starts from the opposite end: each context is a separate workbook with its own members, its own permissions and its own server-side rules, and you switch between them with one account.
If your work and your home never meet, any of them will do. If you need a spouse who sees Home but not the company, an employee who sees their department but not the accounting, and a personal list nobody else sees, the model matters more than the feature list.
How each tool separates your contexts
Todoist
Todoist keeps personal projects and team projects in one account. Team workspaces exist, but each account is limited to one free team, and the admin, member and guest roles inside a team come with the Business plan. According to Todoist's published limits, a Free account can have five active projects and a shared project is capped at five collaborators. Separation is by project: everyone you share a project with sees that whole project.
Trello
Trello organizes work into workspaces that hold boards. A free workspace is limited to ten collaborators, and workspace guests count toward that number; once a workspace goes over the limit, its boards become view-only. Permissions are set per board (admin, member, observer) and per workspace, so a separate company means a separate workspace, each with its own ten-person ceiling on the free plan.
Notion
Notion is a workspace of pages and databases with sharing at page level. The Free plan allows ten guests, and granular database permissions arrive with the Business plan. Choosing a data region, including the EU, is an Enterprise feature. Keeping a family and a company apart means either two workspaces or careful page permissions inside one.
Google Tasks
Google Tasks is a personal list attached to your Google account. There is no share button, no collaborator field and no assignee inside Tasks itself; assigning a task to someone exists only for tasks created in Google Chat spaces or Google Docs. For a household that means a shared Keep note or a third-party add-on, not Tasks.
Taskinger
A Taskinger workbook is a boundary enforced by the database's security rules, not a folder inside one shared space. Each workbook has its own members, its own roles with eight permission flags per member, its own teams and sub-teams, and its own activity trail. A member of one workbook has no technical way to read another, even through the API. The Free plan covers two workbooks you create and three people you add; every plan, including Free, stores data in Google Cloud's European region.
Side by side
| Taskinger | Todoist | Trello | Notion | Google Tasks | |
|---|---|---|---|---|---|
| How contexts are separated | Separate workbooks, each with its own members and rules | Projects and team workspaces inside one account | Workspaces holding boards | Workspaces of pages and databases | One personal list per account |
| Who sees what | Roles plus eight flags per member; teams and sub-teams; checked on the server | Shared projects; team roles on Business | Board roles: admin, member, observer | Page-level sharing; database permissions on Business | Only you |
| Free plan collaboration | 2 workbooks you create, 3 people you add | 5 active projects, 5 collaborators per project, 1 team | 10 collaborators per workspace, guests included | 10 guests | No sharing inside Tasks |
| EU data region on the free plan | Yes, Google Cloud eur3 on every plan | Not published | Not published | No, Enterprise only | Not selectable |
| Card required to start | No | No | No | No | No |
Where Taskinger is not the right choice
Taskinger is a small, focused product built by a small company. It has no marketplace of integrations, no automation builder, no calendar or Gantt views and no native desktop apps: it runs as a web app that installs to your phone. If your team lives in Slack automations or needs a timeline across fifty projects, Trello, Notion or Todoist Business will serve you better. If what you need is several separate contexts, real permissions and EU hosting on a free plan, that is exactly what Taskinger was built for.
Try it with your own contexts
Create a Home workbook and a Company workbook on the free plan, invite one person to each, and check what they can see. It takes ten minutes and no card. Read how the isolation works, or see what the paid plans add.
Todoist, Trello, Notion and Google Tasks are trademarks of their respective owners. Their facts above were checked on 3 September 2026 against their public help pages; if something has changed, write to us and we will correct it.