I accidentally deleted this app. I have had it since 2008, so you can imagine how many accounts have accumulated over the years. And, no- I did not back it up, because I never intended on deleting it. I also thought that somehow it was in "the cloud."
So can anyone please help me? I am so lost without all of these passwords...
Thank you for contacting us and I'm sorry about the issue you are experiencing. Since the older version(s) of mSecure isn't a cloud-based app, there is no way to "sign in" to an account where your information is stored online. Because of this, each older version of the mSecure's login password is device specific and your information is not automatically restored when an older version of mSecure is installed or reinstalled on a mobile device.
We have an automated reminder in the older iOS app for making backups, so it is possible that you made an email backup some time in the past. Please search in your email accounts to see if you can find an email with "mSecure", "mism" or "mscx" in them. If you find an email backup you can use this guide to restore from an email backup file: https://support.msecure.com/en/support/solutions/articles/36000022240 or in mSecure 5: https://support.msecure.com/support/solutions/articles/36000064291
You can learn how to redownload the previous version of mSecure if needed here: https://support.msecure.com/en/support/solutions/articles/36000064249