PIN Keeper (Credit Cards)

PIN Keeper - store your PIN numbers anywhere in secure. Key features: ► 4x4 pattern key ► strong encryption using AES (Advanced Encryption Standard) ► secure memory protection at runtime ► open source code ► partial data storage ► up to 5 slots free storage ► no ads and usage limitations Premium features: ► crossplatform device synchronization ► up to 31 slots storage ► changing pattern key ► safe deleting data Warning! Please enable application data sync for your Google account.