Password Safe Reader was the first app available on Windows Phone which allows you to open Safes created by Password Safe applications (.psafe3).
Always keep backups of your safe.
The app is completely free, no advertisement, no data collection, nothing.
If you have any questions, feedback or feature requests, do not hesitate to get in touch with me.

About Password Safe:
Many computer users today have to keep track of dozens of passwords: for network accounts, online services, premium web sites. Some write their passwords on a piece of paper, leaving their accounts vulnerable to thieves or in-house snoops. Others choose the same password for different applications, which makes life easy for intruders of all kinds.
With Password Safe, a free utility designed by Bruce Schneier, users can keep their passwords securely encrypted on their computers. A single Safe Combination--just one thing to remember--unlocks them all.
Password Safe protects passwords with the Twofish encryption algorithm, a fast, free alternative to DES. The program's security has been thoroughly verified by Counterpane Labs under the supervision of Bruce Schneier, author of Applied Cryptography and creator of the Twofish algorithm.
( https://www.schneier.com/cryptography/passsafe/ )