2024-04-24 00:00:00 Use this Calculator Vault to hide pictures, hide audio, hide photos, hide videos & notes secretly inside this vault app. Try this amazing functional app vault and hide pictures so that hidden pictures not visible in the public photo gallery. This vault is designed as a simple calculator. Calculator vault - Gallery Lock app open only by secret code that is set by you other wise it functional as simple calculator. This way no one knows your mobile had installed gallery lock and you can secretly hide pictures to keep safe from others by this Smart Calculator.