Secret! 1.1 Strong encryption for Windows Phone

Download from the Microsoft Store

Installation And Upgrade

Initial Password EntrySecret! runs on all Windows Phone devices with Windows Phone 8.1 or higher. You can download Secret! from the Microsoft Store. You'll find the complete version history at the bottom of this page.

At the very first start of Secret! you need to define a new password. To avoid typos you have to enter it twice.


Everything you store in Secret! is encrypted with a password of your choice. This password is used to encrypt and decrypt your data and only someone knowing this password can access your data. No back doors, no hidden weaknesses! If you forget your password, you will have to remove and reinstall Secret! as there's absolutely no way to get to your data without knowing the password.

The password can be arbitrarily long and may consist of letters, digits, and special characters. The password is notcase-sensitive to avoid problems with accidental caps lock on desktop platforms.

You can encrypt different records with different passwords. This can be useful if you want to protect some especially important records with an extra-long and complicated password, or if you want to share some information with others using a general password.

When you select a record that cannot be decrypted with the currently entered password(s), Secret! will ask you for the password for that record. All passwords that you enter while you use Secret! are saved internally, so you do not need to enter them twice.

In the record list, select menu Change Password, to change the password for all records of the currently selected category. Open a single record and select Change Password to change the password only for the current record.To protect against typos, you have to enter the new password twice.

Note that changing the password for multiple records will only work for those records that can currently be decrypted.

Record List With MenusData

Secret! offers a two level concept of categories and text records. You can create as many records as you want and assign an arbitrary category to each of them.

You can store anything you like in Secret!, e.g. credit card information, accounts, on-line passwords, transaction numbers, one-time passwords and everything else that needs to be kept Secret! We've even heard of people storing their diary or birthday present lists in Secret!

To avoid accidental changes to very important data you can mark records as read-only in the Properties of a record. Select menu Edit to make the record writable again.

To search in Secret!, select the Search menu while in the record list. Search is not case-sensitive and will find arbitrary sub-strings. Wildcards (*,?) are not supported.

Secret! contains a password generator which helps you create new passwords. The newly created password is inserted into the Secret! record and copied to the clipboard so you can use it in other applications (e.g. on a web site).

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Synchronization screen


Synchronizing with Secret! Desktop (6.5.3 or higher) requires both your Windows Phone and the PC on the same WiFi network.Your data is only synchronized in your local network, no central server on the Internet is involved.

By default, synchronization is two-way, and will synchronize additions, deletions and modifications. You can select to overwrite the handheld or the desktop in the Secret! Desktop synchronization window.

When you cannot connect to Secret! Desktop, check that the address entered is the same as displayed in Secret! Desktop (if there are multiple addresses, try each of them). Also make sure your device is logged into your network via WiFi (not via cellular), and no firewall or security program is blocking network access to your PC.

If you cannot synchronize your data via WiFi, you can manually import/export encrypted data. In Secret! Desktop, select File - Export and export as file secret.dat. Copy this file to the top-level directory of your Windows Phone, then start Secret! on Windows Phone, enter your password, and select menu Import. Existing records will not be duplicated by an import.


Do you use transaction numbers (TANs) for online banking or other one-time passwords (OTP) for secure authorization? Secret! has a special built-in TAN mode that makes using TAN lists easier than ever.

Enter your list of TANs line-by-line into a standard record, then tap on Details and switch to TAN mode. Now you can use the TANs one-at-a-time. If a TAN is used, press and hold the list item until the Delete popup appears. You can undo the last removed entry. To prevent accidental changes, new TANs can only be entered in standard mode.

Used TANs are internally marked with an asterisk (*). You can always see the complete list of TANs by unselecting the TAN/OTP mode. You can enter additional information below the TAN list, e.g. your account data. In normal mode, this text is separated from the TAN list by a single empty line.


Data stored in Secret! is usually very important to you. Make sure you have a current backup available in case your handheld is lost or breaks down. The backup is always encrypted, so there is no danger if someone gets access to the file.

If you use Secret! Desktop, the synchronization will automatically back up your data to the PC.

If you do not use Secret! Desktop, choose menu Export to export all data as a file secret.dat in the root directory of the SD card. You can import this file in Secret! Desktop or in Secret! Windows Phone.

Version History

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