NetManager

A FOSS tool for everyday users, enthusiasts, and professionals to gather mobile cell data in a simple yet precise way. Built from scratch with Flutter, following Material guidelines to blend in with system applications.

Features

- Clean display of key network metrics across all cellular technologies up to 5G NR. - Custom cell database import in .ntm and .clf v3 formats. - Map page powered by OpenStreetMap showing nearby active cell towers from the current network. - Drive test recording: record radio signal strength, network usability, and network info during trips, and replay them later inside the app or externally via built-in .kml and .csv conversion. - Built-in network speed test with support for LibreSpeed, OpenSpeedTest, and custom backends. - Detailed event log capturing cell handoffs, frequency band adjustments, and other real-time network changes. - Opt-in notifications for selected network events. - Optional background service for event and trip logging with a status notification showing live metrics. - Shortcuts to Android field testing menus: Android phone information, Samsung ServiceMode, MTK Engineer mode, Huawei ProjectMenu, and MIUI BandMode. - Full dual SIM support with concurrent data monitoring. - Advanced data preprocessing and postprocessing to filter bad data from Android's Telephony API and merge information into a single SIM data object. - Export of event logs and map trip logs to text files.

Analytics

Optional and opt-in only: anonymous crash dumps and error logs, non-linkable to the user, collected via the open-source Sentry Dart SDK and stored on Bugsink, an EU-managed open-source Sentry alternative.

License

GNU General Public License v3.0 or later