5 stars: Absolutely perfect! I bought Note9 but there was no calculator in phone, this will be adventage to calculate and hind something secret plus when pressing digits it shows how to read number which is so good for me unative language. Srongly recomment!
4 stars: Outstanding application. Does what it says, period. Once password is set, don't, and I mean DON'T lose it or, \
5 stars: Its the best security app for hiding personal picture , videos. As it helped me a lot I am rating it five-star. Last but not the least I think the app must be more secured. Overall its a very good app
5 stars: It is awesome to use vault because my friends always ask for my mobile and i cant deny them so i started using it to keep my secrects and friends happy.
4 stars: Good app. Much useful in both ways. Liked
5 stars: Superb app no app will be like this... Keep it up👍👌... No ad is great job....I love this app......
5 stars: This app was amazing . I will tell you how did this app works . this app works when you put vault password on calculator vault buy number and this app works and thank you
4 stars: Wow! This app is great. It have shortcuts... well that's good. I'm a busy person. This app meet my expectations.
3 stars: not working....cannot access my pics despite attempts to logon
5 stars: 29 may patch is not working for me at all...
5 stars: This app is beyond my expectations! It really can hide one's life in a calculator. Thank you, guys!
5 star...