Best apps for writing and storing legacy letters

Most people don't think about the app when they decide to write a legacy letter. They think about what to say. That makes sense. But at some point, you have to put the words somewhere, and where you put them has real consequences for whether the letter survives and reaches the person it was meant for.

A letter saved to a laptop that gets donated. A folder in an email account that gets deactivated after a year of inactivity. These things happen more than you'd expect. The words were there. Nobody found them.

This guide covers what to look for in a tool for legacy letters, which apps serve different purposes, and how to think about delivery, which is the part most apps don't handle at all.

What a legacy letter app actually needs to do

Writing is the easy part. The harder part is making sure the letter gets to the right person, at the right time, without requiring your family to go hunting for it during an already difficult week.

A good app for legacy letters needs to handle writing without getting in the way, and storage that's secure enough for something deeply personal. But the piece most people overlook is delivery: how the letter actually reaches its recipient. Most general-purpose apps handle writing and storage reasonably well. Almost none of them handle delivery.

There's also a longevity question. A letter you write today might need to stay intact for 20 or 30 years. That rules out anything tied to a startup with no clear business model, or an account that could be closed for inactivity. The Electronic Frontier Foundation's guide to digital security is useful background if you want to think through the tradeoffs between tools. It's not written for legacy letters specifically, but the questions about who can access your data and under what circumstances apply directly.

Purpose-built legacy platforms

These are tools designed specifically for end-of-life wishes, personal letters, and future delivery. They're not the most glamorous category of software, but they're the ones built with your family in mind.

When I Die Files lets you write letters to specific people, store documents, and designate who gets what and when. Letters are delivered to recipients after you're gone, rather than sitting in a folder nobody checks. It also handles the practical side of legacy planning alongside personal letters. More on how the secure storage works in the guide to storing your legacy letters so they reach the right people.

Other platforms in this space include Everplans (focused more on document organization and family sharing) and StoryWorth (which is better suited for memoir-style storytelling than letter writing). The right one depends on what you're trying to do.

General writing apps that work well for drafting

If you already use one of these tools, they're perfectly good for getting words on the page. The gap is in delivery and long-term storage.

Google Docs is accessible from any device, easy to share, and free. It works fine for writing legacy letters, especially if you want a family member to have access now rather than after you're gone. The limitation: if your Google account gets deactivated after a period of inactivity, or if your family can't access it, the document disappears with it. What happens to your online accounts when you die covers this scenario in detail.

Microsoft Word / OneDrive has the same strengths and the same problem. Files tied to a Microsoft account require that account to stay active and accessible.

Apple Notes is convenient but not designed for long-term storage or access by others. It syncs to iCloud, which locks out anyone who doesn't have your Apple ID credentials. Apple does have an official Digital Legacy feature that lets you designate a legacy contact, but setting it up takes a few steps and most people haven't done it.

Notion is popular for personal organization and handles longer documents well. Some people build entire legacy planning systems in Notion. The issue is the same: it's an account you control, and your family's access to it after your death is an open question unless you plan for it explicitly.

For any of these, the workaround is a printed backup and a trusted person who knows where to find the file. Low-tech, but reliable.

Encrypted options for the privacy-minded

Some people writing legacy letters want an additional layer of protection — not just from hackers, but from anyone who might stumble across a deeply personal letter before it's meant to be read.

Standard Notes is a free, open-source notes app with end-to-end encryption by default. Nobody at Standard Notes can read what you've written. The tradeoff is that recovery is harder if you lose access. Good for drafting and storing private letters, but you still need a separate plan for delivery.

Bitwarden (and similar password managers with secure notes) works well for shorter letters or alongside a password management strategy. If you're already organizing your digital estate, it can make sense to store letters there. The Bitwarden documentation on secure notes explains exactly what's stored and how it's protected.

For a deeper look at why encryption matters specifically for legacy letters, this overview of end-to-end encryption for legacy documents explains the difference between standard cloud storage and truly private storage.

The delivery problem

Most apps fail at delivery.

Writing a letter in Google Docs is easy. Having that letter land in front of your daughter on her wedding day, five years after you're gone, without requiring her to know which account it's in or how to get past two-factor authentication? That's a completely different problem.

Purpose-built legacy platforms solve this with trusted executor features or scheduled delivery. Your letter sits in the system, and the platform handles the handoff when the time comes. That's the main reason to use a dedicated tool over a general one.

If you're using a general app, the fallback is a written set of instructions (sometimes called an "information letter" or emergency document) that tells someone exactly where your letters are and how to access them. The end-of-life planning guide has a section on organizing these instructions. Less convenient than automated delivery, but it works if you actually set it up.

A few things to avoid

A couple of patterns that cause problems:

Writing a legacy letter in a chat app (iMessage, WhatsApp, email drafts) and leaving it there. These are not designed for long-term storage and can be lost when accounts are closed.

Storing letters only in a location that requires your specific biometrics or passcode. Face ID and fingerprint authentication are convenient while you're alive. After you're gone, they're a wall.

Relying entirely on a family member to remember where the letter is. Memory is unreliable, especially during grief. Write down the location and put it somewhere they'll find it.

How to choose

If you want your letter delivered without your family having to go looking for it, use a purpose-built platform. If you're comfortable with a more manual approach and have a trusted person who can follow instructions, a general app with good encryption and a clear access plan works fine.

The writing matters most. But don't let the place you store it be the reason it never arrives.

If you've already written something you want to protect, When I Die Files is one option worth looking at. It's built for exactly this problem.