QUOTE(Eterman @ May 4 2019, 11:49 PM)
Are the opensignal cell towers accurate? Any user has similar experience?
Most tower map using crowd-sourced open source project OpenCellID and Mozilla MLS data.
Tower Collector - Apps on Google Play
Tower Collector gives you opportunity to contribute in OpenCellID.org and Mozilla Location Services projects by uploading GPS locations of GSM/UMTS/LTE/CDMA cell towers from your area. The measurements help map the extent of mobile phone network coverage. You can use the app to collect data for personal purposes and export them to CSV or GPX files.
The only map with real tower location is
cellmapper the app is use to traking tower parameter. map available with browser.
CellMapper - Apps on Google Play
CellMapper displays advanced GSM/CDMA/UMTS/LTE/LTE-A cellular network information and can also record this data to allow you to contribute to our crowd-sourced coverage maps. CellMapper works on both tablets and phones running Android 2.3 or higher.