The Best To-Do List Apps of 2026: Top Picks for Privacy and Productivity

A good to‑do list app can help keep your day on track, but it also holds a surprisingly detailed picture of your life: your daily routines, project deadlines, private errands, and even contacts. As data breaches and aggressive app tracking have become more common, privacy matters even for a simple productivity tool.

Wirecutter’s expert testers recently published their 2026 roundup of the best to‑do list apps, evaluating them for reliability, features, and ease of use. That review is a solid starting point, but it focuses mainly on utility. Below, we look at the same three apps through a privacy lens, comparing how each handles your personal data.

What Happened

In late 2025, Wirecutter released its latest annual review of to‑do list apps, naming three top picks based on hours of testing. The review covers apps like Todoist, TickTick, and Microsoft To Do—the same names that have consistently ranked well in previous years. For this article, we examined the privacy policies, encryption practices, and data‑sharing disclosures for each of these three apps.

Our goal was to see whether any of these popular tools offer strong protections without forcing you to give up core features like syncing across devices, collaboration, or smart reminders.

Why It Matters

A to‑do list app may seem harmless, but the data it collects can be revealing: appointment times, recurring tasks, shopping lists, notes about colleagues or family members, and sometimes location data when you tie tasks to places. If that information is stored in plain text on a company’s servers or shared with advertisers, a breach could expose far more than you intended.

A 2023 survey by the Pew Research Center found that 81% of Americans feel they have little control over how companies collect their data. Few people think twice about permissions when installing a productivity app, yet many to‑do apps request access to contacts, camera (for scanning), or storage. Once granted, that access can be used for purposes beyond the app’s core function.

Choosing an app that respects privacy doesn’t mean you have to compromise on utility—but you do have to read the fine print.

What Readers Can Do

Here’s what we found for the three top picks, along with actionable advice for protecting your data:

Todoist

  • Privacy strengths: Todoist does not sell your personal data. It uses HTTPS for transmission and offers a moderate level of transparency in its privacy policy. The app supports two‑factor authentication (2FA), which helps protect your account.
  • Weaknesses: Todoist does not offer end‑to‑end encryption. Your task data is stored on its servers and could be accessed by the company if legally required. Third‑party integrations (e.g., with Google Calendar or Slack) may have separate policies you need to review.

TickTick

  • Privacy strengths: TickTick also uses HTTPS and offers 2FA. The privacy policy states that personal data is not sold, and the app collects only what is needed for syncing and features.
  • Weaknesses: Like Todoist, it lacks end‑to‑end encryption. The service is based in China, which means data is subject to Chinese data‑protection laws. For users concerned about international data transfers, this may be relevant. Users have reported that the app requests broad permissions on Android (e.g., access to photos, microphone) even when not needed.

Microsoft To Do

  • Privacy strengths: Microsoft’s privacy framework is well‑documented, and the company has made commitments to not use customer content for advertising. Microsoft To Do integrates with Outlook and uses the same enterprise‑grade security as Office 365. End‑to‑end encryption is available for emails in Outlook, but not for to‑do items by default. The app does, however, support 2FA and conditional access policies for business users.
  • Weaknesses: Because it is tied to your Microsoft account, the app collects diagnostic and usage data. Some of that data may be shared with third parties for service improvement. The level of protection depends on whether you use a free personal account or a paid organizational one.

Practical steps you can take right now

  1. Check app privacy labels – Both Apple’s App Store and Google Play now require developers to disclose their data collection. Look for apps that “don’t collect data” or limit data to “product personalization” rather than “analytics” or “advertising.”
  2. Turn on two‑factor authentication – It is the single most effective defense against account takeover.
  3. Review permissions – Revoke camera, microphone, and contacts access if the app doesn’t absolutely need them for the features you use.
  4. Consider local‑only alternatives – If you don’t need syncing across devices, apps that store everything on your phone (like Apple Reminders or Goodtask) keep your data off the cloud completely.
  5. Read the privacy policy once a year – Policies change. Even an app that was privacy‑friendly in 2025 may have updated its terms.

Sources

No single app is perfect for everyone, but being aware of the trade‑offs between convenience and privacy lets you choose the one that fits your tolerance. Start by locking down your account, then decide how much cloud access you really need. Your to‑do list doesn’t have to be public any more than your diary does.