TopNTP

TopNTP is an application designed for Android users seeking to enhance their GPS experience. It should be noted that a rooted device with Android 4.0 or higher is a prerequisite for its usage. The app works by installing a customized NTP (Network Time Protocol) file to improve GPS functionality on the user's device. It comes with multiple profiles, with a default to Google's profile, but also provides the flexibility to customize the selected profile further according to the user’s preference.

The program leverages a specialized NTP server pool maintained by Derek Gordon, offering high-quality data with frequent updates. Contrary to common belief, the best NTP server isn’t always the one that is geographically nearest. Gordon's server is recommended due to its reliability and the quality of data it provides. Comprehensive information about the NTP server and its benefits can be located in the 'About this app' section within the settings, as well as more detailed guidance available online.

Furthermore, this tool features a customized aGPS almanac, tailored for devices using Qualcomm or similar chipsets. This data file is refreshed every 30 minutes, assuring up-to-date assistance for the user's GPS.

Operating on a donation model, users' contributions support server maintenance and those who have contributed to development. Contributions also help to expedite the installation process of the patch, with various levels of waiting time reductions available, including an immediate installation option for premium users.

Upon initial launch, it creates a backup of the system on the device’s SD card, which is crucial to maintain since it’s only created on the first run or during an update. Additionally, users are alerted that ROM updates may override the GPS patch, thus requiring a reinstallation—except for those using Cyanogenmod based ROMs with addon.d support, which preserves the patch automatically.

For ASUS device users, it also provides a specific enhancement to the gps.conf file, ensuring backup and appropriate patching.

Highlighted features include the ability to choose and customize NTP profiles, the advantage of a dedicated and updated NTP server, a specialized aGPS almanac for improved location accuracy, and support for backups and script continuity across ROM updates. Overall, TopNTP serves as a valuable tool for users looking to optimize GPS performance on their Android devices.