Haku: Future Letters
Write to your future self
Free · Designed for iPad. Not verified for macOS.
Write to your future self. Keep a photograph, a thought, or a moment from today, and choose when you’ll meet it again.
Haku is a private journal for writing letters to your future self.
Write about a day you want to remember, ask yourself a question you hope to answer, or leave a note for a time when you might need it. Then choose when it will come back to you.
Write a letter only you could write. Start with a few lines or take your time. Save a draft, add questions to revisit later, or keep a little of the day with a photo, a voice note, a file, a place, or the song you had on repeat. When you’re ready, pick a delivery date and send it to your future self.
See what’s on its way. Horizon shows when each letter is due to arrive, and a widget keeps the next arrival in view. When a letter comes back, open it, read it in your own time, and leave a reply if you have something to say to the person who wrote it. You can organize delivered letters into collections or export a copy to keep elsewhere.
Write wherever you feel like it. Start a letter on iPhone, pick it up on iPad, or sit down with it on Mac. Haku also adapts to iPhone Duo, folded or open.
Your letters are yours. Haku encrypts letters and attachments on your device before syncing them to your private iCloud database. There’s no server in between. Haku is made by one independent developer and is free, now and always, with no ads or subscriptions.
Ratings & Reviews
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This update improves attachment handling, place and music search, and navigation between letters in transit and delivered letters.
The developer, Michael Gorini, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Michael Gorini
- Size
- 14.5 MB
- Category
- Lifestyle
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - iPad
Requires iPadOS 26.0 or later. - Mac
Requires macOS 26.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.0 or later.
- iPhone
- Languages
English and 4 more
- English, French, German, Italian, Spanish
- Age Rating
4+
- 4+
- Copyright
- © Michael Gorini