If you want to keep your data
Files in each cloud follow that cloud's own storage and backup settings. Before resetting the device or deleting the app, confirm that the notes open in KuroNote and that the data is present in the cloud.
KuroNote support
Please check the FAQ before getting in touch. It covers using KuroNote, subscribing to KuroNote Server, and how your data is handled.
FAQ
Start here. If it does not solve your problem, use the contact form at the bottom of this page.
KuroNote is the app for writing notes on your phone. KuroNote Server is an encrypted sync service you can choose as KuroNote's storage; it enables the computer browser version, backups and the end-of-life features. Using the phone alone, without KuroNote Server as the storage, is free with your own cloud such as Dropbox / Google Drive / OneDrive.
No. KuroNote encrypts on the device and keeps only ciphertext on the server. We cannot read the text, the images or the encryption keys, and we cannot recover anything if you lose every passkey and the recovery code. Register passkeys on more than one device and keep the recovery code somewhere safe.
Open KuroNote on the new device and carry the key over by approving from an existing device, by a synced passkey, or with the recovery code. Always confirm the notes open on the new device before you reset or let go of the old one.
First check your connection, and that every device uses the same storage and the same account. If the notes matter, export a backup if you can (KuroNote Server subscribers only) before making more edits or deletions on the device with the problem. If that does not help, contact us with your device, OS and app version and what is happening.
The computer / browser version of KuroNote exports every note and image as a ZIP. Opening index.html inside the ZIP in a browser shows the contents with no app needed. The backup is decrypted, plain files, so take care where you keep it. Always export before cancelling, changing devices or resetting a device — and confirm you can open the ZIP and read it.
The KuroNote Server subscription and its payment are managed by the App Store or Google Play you got KuroNote from. Deleting the app does not cancel it. See “Cancellation and data deletion” below for the steps and for what happens afterwards.
Still need help?
Tell us as much detail as you can. Your mail app opens with a message prepared from what you enter.
Please do not include sensitive information
Do not send passkeys, recovery codes, sign-in email verification codes, or the contents of notes and images. KuroNote is encrypted by design, so support cannot decrypt or restore them even if received.
If you cannot use a mail app, write directly to support@kuro.boo.
Before you cancel
How your data is handled differs completely depending on whether the phone version of KuroNote stores to “KuroNote Server” or to another cloud. Start by checking which applies to you.
1. KuroNote only
Free KuroNote uses your own external cloud — Dropbox / Google Drive / OneDrive — as its storage (if you have not chosen one, notes are kept inside this device only). Keeping and deleting data is managed by that storage and by what you do in KuroNote.
Files in each cloud follow that cloud's own storage and backup settings. Before resetting the device or deleting the app, confirm that the notes open in KuroNote and that the data is present in the cloud.
Delete it from KuroNote or from the cloud itself. Removing the app from the device does not delete the data in the external cloud. Support can neither delete nor restore data in an external cloud.
2. KuroNote subscription
Cancelling does not erase data straight away. What happens after you cancel depends on whether the app’s “End-of-life features” are on or off. [Off] Your account and the notes on your device stay; only the data held on KuroNote Server is deleted 90 days after the subscription ends. [On] The 60 days from when the end of the subscription is confirmed become the closing period, after which the whole account is deleted — not only the data on the server, but also the notes inside your devices. Resubscribe during the closing period, or turn the end-of-life features off in the app, and the account stays usable (on the first launch after a cancellation, the app always asks whether to turn them off). The “last letter” is sent once the number of days you chose (5–50, 15 by default) has passed after the closing period begins. If a family handover code is used during the closing period, every note not marked for family is deleted immediately. Resubscribing does not bring back notes that have already been deleted.
Do this first
Cancelling before exporting does not delete anything immediately, but KuroNote is end-to-end encrypted, so support cannot restore notes or images. Keep the ZIP somewhere safe and open index.html to check your notes and images.
1. Cancel in the store
From the subscription management screen of the Apple ID or Google account you purchased with, select KuroNote and cancel.
2. Until the end date
Cancelling stops the automatic renewal. Normally you can keep using it until the end of the period you already paid for, and there is no pro-rata refund.
3. 60 days after the end (end-of-life features on)
With the end-of-life features on, the 60 days from when the end of the subscription is confirmed are the closing period. Resubscribe or turn the features off within that time and everything stays usable. After it, the whole account is deleted, including the notes inside your devices. With the features off, your account and on-device notes stay, and only the data held on the server is deleted after 90 days.
Because of end-to-end encryption, we cannot restore the data either before or after deletion. Backup copies in your own cloud such as Dropbox, Google Drive or OneDrive are not covered by this deletion — please check the settings and deletion state of each of those yourself. With the end-of-life features off, your account and on-device notes stay, and only the data held on the server is deleted after 90 days.
Take care when using a family handover code during the closing period. Notes without the family mark are deleted immediately at that point. Only notes with the family mark can be viewed and exported during the retention period. Note that the family handover code cannot be used during a normal subscription period.
If KuroNote does not appear in the store, you may be signed in with a different Apple ID / Google account from the one used to purchase. Please check your purchase history.
© 2026 Kuro.Boo All Rights Reserved. · KuroNote v0.1.217