Meticulous Pro is an app for keeping secure, datestamped text notes. There is no way to edit an entry once it’s written—that’s the whole point. All entries are securely registered with a third-party datestamping service, TimeCert.org, so that you can prove to anyone when you wrote a given entry. If you are an author, inventor, private detective, or anyone else who wants to prove the age of a document you wrote or an idea you had, Meticulous Pro is just what you need.

Entries are also encrypted with banking-grade AES encryption and secured with a passcode so that only you can see them. Combined with the built-in security of iPhone OS, your notes will be quite safe in Meticulous Pro’s hands.