Network Survey

Network Survey is a connectivity application developed by Christian Rowlands, packaged as a single Android APK of version 1.5 weighing in at 74.99 MB. The package targets Android 4.1+ and above. Below you'll find the publisher's own description, a quick spec sheet, and a short buyer-beware checklist so you know exactly what you're installing before tapping download.

1. Only download through the button on this page — never from third-party mirrors or shortened links, which are the most common way malware spreads.
2. File size is a light 74.99 MB, so it installs quickly even on modest connections.
3. This build is signed by "Christian Rowlands" — always verify the developer name matches what's listed on the app's official store page before installing an update.
4. After install, Android may prompt you to allow "Install from unknown sources" — approve only this one install, then revoke the permission in Settings > Apps > Special access.
5. We link directly to the APK file or the publisher's repository; we do not modify the binary. Always run a virus scan after any sideloaded install.

The Network Survey app enables logging cellular, Wi-Fi, Bluetooth, and/or GNSS information to a log file (GeoPackage or CSV format). For cellular records it supports logging GSM, CDMA, UMTS, LTE, and NR records.

You might receive an alert from anti-malware software indicating that Network Survey sends SMS messages in private manner to deceive users. This is NOT the case. SMS permission is necessary for some of the logging that is done. Just to be clear though, Network Survey does not send any text messages, nor does it install anything. In fact, you can deny all the SMS permissions if you are not using the CDR (call detail record) logging feature. The SMS permissions are only requested the first time you turn on CDR logging. More information can be found in this GitHub Discussion: https://github.com/christianrowlands/android-network-survey/discussions/35

This app has the ability to access your device's location in the background. The background location permission is needed to start Network Survey at boot. You can deny this permission if you don't want to start Network Survey at phone boot. More information can be found in the App's privacy policy located at https://github.com/christianrowlands/android-network-survey/blob/master/privacy_policy.md

The cellular logging feature logs several details about the current serving cell, and then some basic information about the neighbor cells. This app won't log all 5 cellular protocols at once. Instead, it will only log information about the protocols that are current connected. If logging for one specific protocol is desired, then the phone must be locked to that protocol (try using *#*#4636#*#* from the dial pad).

The cellular survey records can be streamed to either a gRPC server or a MQTT broker. This is not on by default and a gRPC server or MQTT Broker needs to be setup for this feature to work.

See the NS Messaging GitHub Repo for more details on setting up a network survey gRPC server.

See for information on setting up a MQTT Broker.