How to Choose a To-Do List App That Respects Your Privacy (Based on Wirecutter’s 2026 Reviews)

A to-do list app holds your daily plans, deadlines, and sometimes even your private notes. It’s the kind of tool you open multiple times a day, often on your phone and computer. But as data breaches have become routine and app-tracking practices more aggressive, the privacy features of these seemingly simple apps deserve closer attention.

This year, Wirecutter (the product review service from The New York Times) updated its recommendations for the best to-do list apps. While their main review focuses on usability, features, and reliability, we looked at the same apps from a privacy and security perspective. Here’s what you need to know.

What Happened

Wirecutter’s 2026 roundup of the best to-do list apps includes three top picks. (They are named in the full review, but the exact lineup changes over time.) The team tested a range of popular options, from standalone apps like Todoist and TickTick to platform-native tools like Apple Reminders and Microsoft To Do. Their methodology involved weeks of hands-on use, checking for sync reliability, natural language input, cross-platform support, and overall speed.

What the review doesn’t emphasize as much is how each app handles your data. Encryption, data-sharing practices, and account security vary significantly even among the top contenders. Some store your tasks in plain text on their servers; others use end-to-end encryption. Some share data with third parties for advertising; others do not.

Why It Matters

A to-do list app often has access to more than just your tasks. It may sync across devices, integrate with your calendar, collect location data for reminders, or request access to your contacts. This creates a potential privacy risk if the app’s security is weak or its privacy policy is vague.

In 2025, researchers found that several popular productivity apps were sharing user task data with analytics and advertising partners. While most of the apps Wirecutter recommends have since updated their policies, the differences remain substantial. For instance:

  • End-to-end encryption means only you (and anyone you share a list with) can read your tasks. The app provider cannot see them.
  • Zero-knowledge architecture is a stronger version: even the company that hosts your data cannot decrypt it.
  • GDPR/CCPA compliance is a baseline, but not all apps are equally transparent about how they comply.
  • Two-factor authentication availability varies, and some apps still rely on just a password.

Asking about these features before you commit to an app is worth a few minutes of research. The time spent could save you from having your personal schedule exposed in a breach.

What Readers Can Do

You don’t need to become a security expert to choose a safer to-do list app. Here are a few concrete steps you can take:

  1. Check the app’s encryption status. Look for terms like “end-to-end encrypted” or “zero-knowledge” in the app’s documentation. If the company can’t explain what encryption they use, that’s a red flag.

  2. Read the privacy policy (at least the data-sharing section). Use the site Terms of Service; Didn’t Read to get a summary if the policy is long. Pay attention to whether the app shares data with advertisers or uses your tasks for training AI models.

  3. Enable two-factor authentication if the app offers it. This is one of the most effective ways to protect your account.

  4. Review app permissions on your phone. A to-do list app does not need access to your camera, microphone, or contacts unless you explicitly use those features. On iOS and Android, you can restrict these in system settings.

  5. Consider whether you need cloud sync. If you’re especially privacy-conscious, you might prefer a local-only app that stores tasks only on your device. The trade-off is you lose cross-device syncing.

If you already use one of Wirecutter’s top picks, take a few minutes to verify its privacy settings. For example, Todoist offers two-factor authentication and uses encryption in transit and at rest, but does not provide end-to-end encryption. TickTick has a similar profile. Apple Reminders benefits from iCloud’s end-to-end encryption when iCloud Advanced Data Protection is enabled. Microsoft To Do does not offer end-to-end encryption but supports two-factor authentication and enterprise-grade security.

The best choice depends on your personal risk tolerance and which features you need.

Sources

  • Wirecutter, “The 3 Best To-Do List Apps of 2026,” The New York Times, December 2025. (Original review behind paywall at nytimes.com/wirecutter)
  • Privacy policies and security documentation from Todoist, TickTick, Apple, and Microsoft (accessed May 2026).
  • Terms of Service; Didn’t Read, tospolicy summaries (tosdr.org).