Which To-Do List Apps Respect Your Privacy in 2026?

A to-do list app seems harmless enough: it stores tasks, deadlines, maybe a few notes. But think about what you put into it—work projects, doctor’s appointments, personal goals, shopping lists. Over time, that data reveals your schedule, your habits, even your location or health patterns. Given how many apps now sync to the cloud, your task list might be more revealing than you realize.

Earlier this year, Wirecutter released its updated guide to the best to-do list apps for 2026. Their top picks—Things, Todoist, and Microsoft To Do—are well-tested for features and usability. What the guide didn’t dig into is how each app handles your privacy. That gap is worth addressing, especially as data breaches and aggressive tracking have pushed more people to think twice about which apps get access to their personal information.

What happened

Wirecutter’s review evaluates To-Do apps based on design, cross-platform support, collaboration, and reliability. Their top three choices reflect years of testing. But none of the criteria they use explicitly address encryption, data collection, or third-party sharing. This is common in mainstream reviews—privacy is often an afterthought unless it becomes a scandal.

Meanwhile, several popular to-do apps have faced scrutiny over their data practices. For example, TickTick, which Wirecutter also considered, was found in 2024 to share usage data with analytics firms without clearly disclosing it. Microsoft To Do is deeply tied to Microsoft 365, which means your tasks are subject to Microsoft’s commercial data policies. Even Todoist, which markets itself as privacy-friendly, stores your task data on its servers with standard encryption at rest but no end-to-end encryption by default.

Why it matters

Your to-do list is a timeline of your life. A bad actor or an overly aggressive data broker could use it to infer when you’re out of town, what health appointments you have, or what side projects you’re working on. Even in aggregate, app data can be sold or used to target you with ads.

There’s also the risk of a breach. In 2025, a small productivity app called “Any.do” suffered a security incident that exposed user tasks and account details. Though no major to-do app has had a catastrophic breach recently, the larger the cloud infrastructure, the bigger the target. Local-first apps like Things, which keep data on your device by default, present a lower risk.

What you can do

You don’t need to abandon digital task management. You just need to choose the right app for your threat model. Here are practical steps to protect your task data in 2026.

Prefer local-first apps. Things 3 (exclusive to Apple devices) stores your data locally. It can sync via CloudKit if you want, but you have control over whether to turn that on. If you don’t need cross-device sync, keeping tasks on one device is the most private option.

Disable cloud sync where possible. Todoist and TickTick offer offline modes, but default to cloud sync. Go into settings and unlink cloud accounts if you only need the app on a single device.

Review permissions. Many to-do apps ask for calendar, contacts, or location access. Allow only what is necessary for the features you actually use.

Consider end-to-end encryption (E2EE). Standard Transport Layer Security (TLS) protects data in transit, but it doesn’t prevent the app’s servers from reading your data. TickTick offers E2EE for its notes feature, but not for tasks. As of early 2026, no major to-do app offers E2EE for task content by default. If you need that, consider using a notes app with E2EE (like Standard Notes) and manually managing tasks there.

Read the privacy policy. It’s tedious, but it’s the only reliable way to see whether an app shares data with third parties, uses your data for advertising, or retains it after you delete your account. The policies for Todoist and Microsoft To Do are relatively clear but differ in how much data they collect.

Sources

  • Wirecutter, “The 3 Best To-Do List Apps of 2026,” The New York Times, updated December 2025.
  • Todoist, Privacy Policy, last revised January 2026.
  • Microsoft, “Microsoft Privacy Statement,” updated March 2026.
  • TickTick, Privacy Policy and Security page, accessed April 2026.
  • Any.do, Data Breach Notification, 2025 (covered by TechCrunch and BleepingComputer).