HOLIDAY70% OFFHow to lock MemoKey and single notes
MemoKey has one 4-digit passcode. It can lock the whole app, single notes, or both, and Face ID or your fingerprint can unlock instead of typing it.
Set a passcode and choose what it locks
1. Set a passcode
Open Settings → Security and turn on Set Passcode. Enter a 4-digit passcode, then enter it again to confirm. Choose one you will remember: it cannot be recovered.
2. Unlock with Face ID or fingerprint
Turn on Enable Biometric and enter your passcode. The switch appears only when your phone supports it; on Android it needs a strong fingerprint or face sensor, and your phone’s own PIN or pattern is never accepted instead. If you add a new face or finger to the phone, MemoKey turns this off: enter your passcode and turn it on again.
3. Lock the app when it opens
Turn on Lock App When Open and enter your passcode. MemoKey then asks for it when you open the app and again after it has been in the background for 30 seconds or more. While a lock is on, the app’s content is covered in the app switcher, and on Android screenshots are blocked.
4. Allow locked notes
Turn on Lock Individual Note (MemoKey Pro) and enter your passcode. Now you can lock single notes.
5. Change the passcode
Tap Change Passcode, enter the current passcode, then the new one twice. Your locks and biometrics stay as they are.
Lock a single note
1. Lock the note
Open the note and tap Lock (the padlock) in its toolbar. If Lock Individual Note is off, MemoKey offers to open Settings first.
2. What a locked note looks like
In the list it shows a padlock with its title, or Locked when you do not use note titles; its text stays hidden and search finds it by title only. Opening, copying or deleting it asks for your passcode.
3. Unlock the note
Open the note and tap Unlock. Unlocking never needs Pro, and notes you locked stay locked if Pro ends.
What the keyboard shows
Locked notes are listed on the MemoKey keyboard without their text. Tap one and enter your passcode to insert it. On iPhone, the keyboard may ask you to allow Full Access before it can check your passcode.
With Lock App When Open on, the keyboard shows MemoKey Is Locked with an Unlock button until you enter your passcode, and locks again when it closes.
What iPhone search shows
On iPhone and iPad, Search notes from the Home Screen in Settings → Search & Widgets lets you find your notes in the Home Screen search. It stays off until you turn it on. Locked notes are never in this search: when you lock a note, MemoKey removes it at once.
Titles and the start of unlocked notes show in iPhone search even while the app lock is on, so keep anything private in a locked note. Tapping a result opens the note only after you unlock MemoKey.
Home Screen shortcuts and search guide: the Shortcuts actions and the ask-first prompt
Too many wrong tries
After 5 wrong passcodes, MemoKey makes you wait 30 seconds before the next try. Further wrong tries double the wait, up to 5 minutes. The app and the keyboard follow the same rule.
A correct passcode, Face ID or fingerprint resets the count. Restarting the phone or changing its clock does not shorten the wait.
I forgot my passcode
There is no way to recover or reset a forgotten passcode. MemoKey keeps no copy of it anywhere, and we cannot unlock your notes for you.
The way back is a backup: delete MemoKey, install it again, and restore your latest cloud backup or exported file. A fresh install starts without a passcode. Deleting the app removes the notes on the phone, so only what is in a backup comes back. The Export on the Troubleshoot screen asks for the passcode too, so it cannot help here.
Automatic cloud backup keeps running while the app is locked, so turn it on before you need it.
Still stuck? See the FAQ or Support page.