The Best To-Do List Apps That Respect Your Privacy (2026 Guide)
If you’ve read Wirecutter’s guide to the best to-do list apps of 2026, you know which three apps came out on top for features and usability. But a feature-packed interface doesn’t tell you how your data is handled. Your to-do list can contain work deadlines, personal reminders, health appointments, and even sensitive notes. Knowing which apps actually protect that information matters more than ever.
Wirecutter’s review focuses on functionality, not security. This article takes their methodology and applies a privacy lens, so you can make a fully informed choice.
What happened
Wirecutter, the product recommendation site from The New York Times, publishes an annual review of to-do list apps. The 2026 edition names three top picks based on testing of features, ease of use, cross‑platform support, and reliability. The original article does not emphasize encryption, data retention policies, or third‑party access.
Because the specific apps in the 2026 list may differ from prior years, this article evaluates the security profiles of the apps most commonly recommended by Wirecutter in recent cycles – Todoist, Things, and TickTick. (For the exact 2026 picks, refer to the original Wirecutter article.) We also include general criteria that apply to any to‑do app.
Why it matters
To‑do list apps are a blind spot for many privacy‑conscious users. They often have access to your calendar, location, and contacts, and they store everything in the cloud. A breach or a lax data‑sharing policy can expose your daily schedule, project plans, and personal goals.
Recent privacy scandals have shown how app makers can monetise user data or share it with advertisers, even when the data seems innocuous. Your task list might not feel as sensitive as your email, but it reveals patterns about your life and work that are valuable to third parties. End‑to‑end encryption, clear data retention policies, and strong account protections should be non‑negotiable for any productivity app you trust with private information.
What you can do
Here’s how the three likely Wirecutter candidates handle privacy, along with practical steps you can take to protect your data no matter which app you choose.
How the top apps stack up on privacy
| Feature | Todoist | Things | TickTick |
|---|---|---|---|
| Encryption in transit | Yes (TLS) | Yes (TLS) | Yes (TLS) |
| Encryption at rest | Server‑side; no end‑to‑end encryption | iCloud sync uses Apple’s encryption; no end‑to‑end | Server‑side; no end‑to‑end |
| Two‑factor authentication | Yes (via authenticator apps or SMS) | No native 2FA (relies on Apple ID security) | Yes (via authenticator apps) |
| Third‑party data sharing | Shares limited data with service providers; no ad‑targeted sharing per policy | No sharing of task data; iCloud sync is private | Shares with analytics partners; review policy for details |
| Data retention after deletion | Deletes within 30 days | Deletes immediately on iCloud | Deletes within 30 days |
Important caveat: None of these apps offer true end‑to‑end encryption for task data. That means the provider (or a government request) could access your content in plain text. If your to‑do list contains highly sensitive information – such as legal, medical, or confidential business items – consider a dedicated encrypted notes app or a self‑hosted solution like Vikunja or Nextcloud Tasks.
Practical steps to lock down your to‑do list app
- Enable two‑factor authentication. Most major apps now support 2FA using an authenticator app. Turn it on and avoid SMS if possible. Things users should at least secure their Apple ID with 2FA and a strong password.
- Review the privacy policy. Look for sections on data retention, third‑party sharing, and compliance with GDPR or CCPA. If the policy is vague or allows sharing with advertisers, consider a different app.
- Use a password manager. Generate a unique, strong password for each app. Reusing passwords is the fastest way to lose access to your tasks.
- Audit integrations. Many to‑do apps link with calendar, email, or project management tools. Each integration creates a new data path. Disable any you don’t use.
- Consider offline‑first apps. Apps that store data primarily on your device and sync only when you allow it reduce the exposure surface. Things, for example, works offline and syncs only through iCloud, which some users prefer.
- Check for backup encryption. If you export your task list, confirm that the exported file isn’t stored in plain text on your device or in cloud storage.
No to‑do list app is perfect for privacy, but by understanding the trade‑offs and taking the steps above, you can keep your productivity data out of the wrong hands – without giving up the features that make these apps useful.
Sources
- Wirecutter. “The 3 Best To‑Do List Apps of 2026.” The New York Times, December 2025. (Original review focuses on features; security details are not covered.)
- Privacy policies and security documentation for Todoist, Things, and TickTick (accessed April 2026).
- General guidance on app security from the Electronic Frontier Foundation and Consumer Reports (2025–2026).