+++ Encrypt your documents locally and in iCloud: +++
Just use the "share with" or "open in" action of your document and select "Encrypt in And You And I". A local copy of the file will be encrypted with AES, and uploaded to iCloud if turned on.
Each document gets its unique and encrypted file name.
+++ Enable S/MIME for your iOS devices easily: +++
Generate strong keys and certificates, and distribute them via mails with your communication partners.
+++ Security in your hands: +++
Only your own device and your own iCloud account are used. No other services or parties are involved.
The encryption related source code is published in my web site.
+++ This free app is powered by your feedback: +++
If you like it, add your review in the App Store.
If not or in case of technical problems, visit my web site and look for support, or send me a mail.