OpenSignal Alternatives

Find a cell phone location using LAC/CellID, GSM BTS coordinates

This app collects GSM security data and adds it to the GSMmap web site.

Cellumap is a revolution in cellular coverage maps, in that the coverage maps here are not created...

CellTower Locator

Open source alternative for crowsourced cell tower and wifi data

Crowdsourced free wifi (now on Android)

OpenCelliD is the largest Open Database of Cell Towers & their locations. You can geolocate IoT & Mobile devices without GPS, explore Mobile Operator coverage and more!

Collects and analyses mobile radio data to make you aware of your mobile network security and to...

Detect IMSI/IMEI/TMSI catchers and interception of voice and data over GSM networks

Mozilla Stumbler is an open-source wireless network scanner that collects GPS data for the Mozilla...

Detect attacks of fake base stations such as IMSI-Catcher and StingRay on your GSM/UMTS network.

Collects GPS locations of cell towers and sends them to OpenCellID.org