A single phone locator app charging 249 koruna per week can bleed a user of nearly 13,000 koruna in a year.
As reported by SMARTmania.cz, a segment of the Google Play Store continues to offer lifetime licenses for a single payment—tools that remain active after purchase and can be reinstalled on new phones without additional fees.
The model differs from services reliant on the developer’s servers, such as cloud backups or weather forecasting, which typically use a subscription model. While these one-time purchase tools remain active after purchase, functions that run on a developer’s server, like cloud backups or weather forecasts, often require a subscription.
Several applications are cited as examples of successful one-time purchase models. SD Maid 2/SE, a storage cleaner, is available for a single payment of 170 Kč, offering features like cache removal, duplicate file finding, and photo compression.
Moon+ Reader Pro stojí 300 Kč a přečte skoro cokoli: EPUB, MOBI, AZW3, FB2, PDF, DjVu, komiksy ve formátech CBZ a CBR i dokumenty DOCX nebo Markdown. FolderSync Pro, a tool for synchronizing photos and files with cloud services or home network drives, also operates on a one-time purchase basis, allowing users to automate backups without a recurring fee.
Users can typically try these applications in a free or trial version before purchasing. The full version is unlocked through an in-app purchase or by buying a separate app that acts as a license key. A one-time license remains with the user's Google account. When a user gets a new phone, they can reinstall the app with the same account and continue to use the full version without paying again.
Moon+ Reader Pro, priced at 300 Kč, can read a wide variety of formats, including EPUB, MOBI, AZW3, FB2, PDF, DjVu, comics in CBZ and CBR formats, and documents like DOCX or Markdown. It offers extensive customization for text appearance, including font, line spacing, margins, paragraph indentation, and hyphenation.
Pages can be turned with taps or gestures, and brightness is adjusted by swiping the screen edge. The app allows filling out forms, adding highlights, and handwritten notes to PDFs. The free version of Moon+ Reader includes most reading functions but displays ads; the Pro version removes them and adds features like text-to-speech, app locking with a password, and page-turning buttons on Bluetooth headphones.
FolderSync Pro synchronizes selected folders on a phone with cloud storage or a computer and home network drive. In addition to Google Drive, OneDrive, and Dropbox, it supports MEGA, pCloud, and Proton Drive. It can connect to a home network-attached storage (NAS) using the SMB, SFTP, or WebDAV protocols. The basic synchronization feature is available in the free version.
