The Best To-Do List Apps of 2026—and Which Ones Keep Your Data Safe

If you rely on a to-do list app to organize your day, you’ve probably thought about features like due dates, reminders, and collaboration. But have you considered what happens to the data you put into those tasks? A grocery list might not matter much, but project notes, deadlines, or personal reminders often contain sensitive information—phone numbers, addresses, or even passwords stored in notes. That makes the privacy and security of your chosen app worth a closer look.

Wirecutter recently updated its roundup of the best to-do list apps for 2026, naming TickTick, Todoist, and Microsoft To Do as its top three picks. Their reviews focus on usability and features. Here, we’ll examine each app from a privacy perspective so you can decide whether the convenience is worth the trade-off.

What happened

Wirecutter’s testing (published December 2025) found that TickTick offers the best balance of power and simplicity, Todoist excels in flexibility and cross-platform support, and Microsoft To Do is the strongest choice for people already in the Microsoft ecosystem. All three are reliable and popular. But their privacy practices differ.

  • TickTick collects a fair amount of personal data, including email addresses, device identifiers, and usage logs. Its privacy policy states that data may be shared with third-party service providers. TickTick does not offer end-to-end encryption (E2EE) by default. A premium subscription removes ads but doesn’t change the fundamental data handling. There have been no public breach reports for TickTick in the past year, but its data retention and sharing policies are less transparent than some users might like.

  • Todoist stands out because it offers end-to-end encryption for Premium and Business users. That means task content is encrypted before it leaves your device and can only be decrypted by you. Free users do not get E2EE. Todoist’s privacy policy is clearer about what data is collected (email, usage, device info) and for what purposes. It also allows users to export data easily. Todoist has not experienced a major breach recently.

  • Microsoft To Do integrates tightly with Microsoft 365 and other Microsoft services. This means your tasks may be used to improve Microsoft’s AI features (unless you opt out in your account settings). Microsoft To Do does not offer E2EE for task content at rest. It relies on transport encryption (TLS) but Microsoft can technically access your task data. Microsoft’s privacy dashboard gives you some control, but the company’s business model relies on data for advertising and AI training, so your task data is potentially part of that.

Why it matters

To-do lists often contain more than you think. People store passwords, home addresses, meeting notes with sensitive discussions, health reminders, or financial to-dos. If an app’s backend is compromised, or if the company shares data with advertisers or law enforcement without strong encryption, that information could be exposed.

The lack of default end-to-end encryption in TickTick and Microsoft To Do means your tasks are readable by the app provider. For most users, that may be acceptable. But if you handle confidential work tasks, store personal information, or simply value privacy, the difference matters. Also, note that free plans often rely on monetizing user data to some extent—something to consider when choosing a free app.

What readers can do

You don’t have to abandon your favorite app to improve security. Here are practical steps:

  1. Choose an app with E2EE if possible. Todoist Premium is the clear winner among the three for privacy-conscious users. The cost of Premium is around $5 per month, and you get encrypted task data plus other useful features. If you absolutely prefer TickTick or Microsoft To Do, accept that your data is readable by the company.

  2. Enable two-factor authentication (2FA). All three apps support 2FA. Turn it on—it prevents unauthorized access even if your password is stolen.

  3. Use a strong, unique password and consider a password manager. Don’t reuse passwords across accounts.

  4. Review app permissions on your phone. To-do list apps often ask for contacts, camera, or location. Deny anything unnecessary. For example, if you only use the app for text lists, it doesn’t need access to your photo library.

  5. Limit what you put in tasks. Avoid storing passwords or highly sensitive details. Use a dedicated password manager for that. For notes, consider whether they need to be inside a to-do list app at all.

  6. Check privacy policies periodically. Companies change their data practices. If a policy becomes less favorable, you can switch apps before your data is affected.

Sources

  • The New York Times Wirecutter: “The 3 Best To-Do List Apps of 2026” (Dec 2025) – reviews of TickTick, Todoist, and Microsoft To Do.
  • Privacy policies for each app (retrieved April 2026): TickTick, Todoist, Microsoft To Do.
  • No major data breaches reported for these apps in the past year (source: Have I Been Pwned and general news search).