The app in question is designed for secure file storage, utilizing a passcode or FaceID for protection. Notably, it operates without servers and avoids cloud storage, ensuring user files remain on their personal devices. The app attracts organic traffic exclusively, boasting over 2000 active subscribers and generating over $80,000 in revenue over the past year. Available in-app purchases include a subscription model and a one-time “Lifetime Pass,” with no advertisements interrupting the user experience. The app is developed using Swift, with the source code and assets available as part of its sale. Financially, the app has earned $86,500 in the last 12 months from 103,000 downloads, accumulating a total of $660,000 since its launch in July 2017, alongside 4,590,000 downloads. Several potential improvements exist for the app. These include enhancing App Store Optimization (ASO), reintroducing ads for non-premium users, and optimizing paywalls by presenting them earlier or experimenting with different pricing strategies. Despite recognizing these areas for improvement, the developer prioritized other projects, leading to the sale of Locker. This decision is driven by a desire to focus on and manage other apps more effectively, as the app constituted a small part of the overall business portfolio. No post-sale support is offered, but the app’s simplicity allows for easy feature additions and maintenance by qualified Swift developers. A marketing expenditure of $8600 was made primarily in 2017, with recent downloads being entirely organic. Temporary promotions of a free Lifetime Pass have also contributed to the app's visibility.