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Cell Signal

Monitoring & Mapping

From simple signal strength widgets up to full-fledged war-driving apps (also see WLAN WarDriving) …

• Brigitel (5@264) Ǥ 13 2 LastUpdate: 2021-03-19
• Mobile Cell Check (5@80) 7
• Cellular Info (5@37) Ǥ 12 LastUpdate: 2019-12-02
• Phone signal information (4.4@2,809) 6 LastUpdate: 2022-07-10
• Signal Guard Free (4.4@2,149) Ǥ 20 5 LastUpdate: 2020-04-26
• Network Survey (4.4@19) 24 / Network Survey+ (0@0) 10 LastUpdate: 2021-09-11 Github / Github; advanced version (root needed)
• Coverage - Cell and WiFi Test (4.3@59,497) Ǥ 19 1
• Network Signal Guru (4.3@4,104) Ǥ 12 1
• Tower Collector (4.3@420) Ǥ 16 3 Github; contributes to OpenCellID and Mozilla; IzzyOnDroid recommendation (F-Droid version)
• Network Monitor (4.2@523) 10 LastUpdate: 2019-08-11 Github; Intro 10/2016
• RF Mobile Trace (4.2@88) Ǥ 21 7
• Opensignal - 5G, 4G Speed Test (4.1@447,618) Ǥ 10 4 Wikipedia
• Cellular-Z (4.1@1,899) 19 LastUpdate: 2023-06-17 cell, WiFi, location
• NoGa Cell 2G 3G 4G (4.1@134) Ǥ 14 11 LastUpdate: 2022-04-25
• Netmonitor: 5G, Cell & WiFi (4@19,397) Ǥ 18 11
• Cell Signal Monitor (4@6,194) Ǥ 10 13
• NetMonitor Cell Signal Logging (4@1,984) 10 1 LastUpdate: 2021-02-10
• Network Signal Info (3.9@44,785) Ǥ 16 10 LastUpdate: 2023-05-16
• LTE Discovery (5G NR) (3.9@23,572) Ǥ 29 4 LastUpdate: 2022-03-19
• Network Cell Info Lite & Wifi (3.8@84,082) Ǥ 19 4 / Network Cell Info & Wifi (3.6@12,169; ~EUR 2.25) Ǥ 14 4 Video Intro 6/2018; can export collected cells to MLS, OpenCellId – but also to KML
• NetMonster (3.8@9,331) Ǥ 13 4
• Cell Towers (3.7@4,478) Ǥ 12 4
• Antennas (3.7@4,254) 5 LastUpdate: 2012-05-15
• G-MoN (3.6@4,947) Ǥ 13 5 LastUpdate: 2020-03-28
• Signal Finder (3.6@3,920) Ǥ 8 4 LastUpdate: 2021-10-14
• inViu OpenCellID (3.6@363) 8 LastUpdate: 2016-11-06 records cell towers incl. coordinates for open-source database, see OpenCellID (map) and in the Wiki
• Rx Monitor (3.4@344) Ǥ 11 2
• AeroConn - network monitoring (3.3@1,035) 8 1 LastUpdate: 2019-06-14
• SignalCheck Lite (3.2@1,117) 8 1 LastUpdate: 2020-11-02 / SignalCheck Pro (3@900; ~EUR 4.50) Ǥ 10
• CellMapper (2.8@3,139) Ǥ 19 2
• Cell Tower Radar (2.8@461) Ǥ 9 3 Github
• SSA Outdoor RF Signal Tracker (2.7@299) Ǥ 16 LastUpdate: 2021-06-12
• RF Signal Tracker (2@2,271) Ǥ 13 4 LastUpdate: 2019-01-17
• CellReader (0@0; ~EUR 1.00) 8 1 Github

Bad Signal Alert

Some of the apps mentioned in Monitoring & Mapping include this feature. But the following candidates are specialized in alarming you on bad reception:

• Dr. Network (4@355) 9 2 LastUpdate: 2021-12-26
• GSM Signal Monitor & SIM Info (3.7@3,664) Ǥ 13 5
• Network Voice Alert! (2@235) Ǥ 15 1
• Signal Strength Warning (1@54) Ǥ 6 2 LastUpdate: 2020-11-26

Bad Signal Handler

If your device should take action automatically on bad reception (e.g. switch to airplane mode for a few minutes, then re-check), the following candidates are worth a look:

IMSI Catcher

• Cell Spy Catcher (Anti Spy) (4@3,446) 8 2 LastUpdate: 2020-03-19 detect Stingray Cell Phone Trackers („IMSI catchers“)
• SnoopSnitch (3.5@4,020) 16 Intro 7/2019; Vorstellung 4/2018 | 1/2020; Mike’s favorite; detect Stingray Cell Phone Trackers and missing security patches