LastBar

No bars? LastBar shows you the nearest place where your phone will work.

LastBar is a map of mobile coverage made by the people who use it. As you travel, your phone notes the signal of your carrier every few minutes. Those readings become a map of where there is signal and where there is none. When you are stuck, the map is already on your phone.

FIND SIGNAL
Choose what you need: an emergency call on any carrier, a call or SMS on your own, or data. LastBar gives the distance and direction to the nearest place that has it, says whether it is higher or lower than you, and turns with your compass. It needs no connection. Emergency call shows the emergency numbers of the country you are in. On the move, Signal ahead warns of a stretch with no signal ahead of you.

WATER, SHELTER AND HELP
The map shows water, shelters and huts, clinics and hospitals, police, fuel and peaks, from OpenStreetMap, with their address and phone number. Find Signal points you to the nearest water or shelter too. Near a point, confirm it is still there, report it gone, or tell us what is wrong with it.

A MAP FOR EVERY CARRIER
See all carriers at once, or pick your own. Show any signal, voice, or data on 3G, 4G or 5G. Green is strong, orange is fair, red is weak, and an empty outline means no signal at all. Tap a place for its signal, download speed, readings and how recent they are, altitude, and coordinates in decimal degrees, degrees, minutes and seconds, or UTM. Search for a town or country by name.

WORKS WITH NO CONNECTION
What your phone measures shows on your map at once, and the coverage around you is kept on your phone. Save an area before a trip to take its map, coverage, towers and points of interest with you, offline.

YOUR OWN READINGS
Every reading is kept on your phone first and sent when you have a connection again. Your own readings are marked on the map, and the Stats tab says what you have mapped.

ANONYMOUS
There is no account and no sign-in. LastBar never reads your phone number, your contacts or your calls. Your phone gets a random id that says nothing about you. Readings are combined into map cells before anyone sees them, and never shared with advertisers. Stop at any time, and delete everything you contributed from within the app.

LIGHT ON BATTERY AND DATA
About 3% of a charge and 5 MB a day. Choose how often it takes a reading, and whether it uploads on Wi-Fi only.

LOCATION IN THE BACKGROUND
LastBar collects location data to map mobile coverage along the way you travel, even when the app is closed or not in use. A notification shows for as long as it collects, with a button to stop. You can use the map and Find Signal without it.

FREE, WITH ONE PURCHASE
The map, Find Signal, the emergency numbers, the water, shelter and help on the map, and your own readings are free, and stay so. The free version shows one small ad, never on Find Signal. LastBar Pro is one payment, with no subscription: it removes the ad, adds the satellite map, lets you save 10 areas instead of one, lets you add water and shelter points to the map, fetches coverage twice as far around you, and keeps the coverage of more places on your phone.

GOOD TO KNOW
The map is as good as its readings. Where nobody has been with LastBar yet, it is empty: every trip fills it in, for you and for everyone after you. Coverage changes, and a reading says what was, not what will be. The satellite pictures are from 2016 and show the land, not single houses. Water, shelters and the other points were mapped by volunteers: one may be wrong or gone, and water is not always safe to drink. In an emergency, call your local emergency number.

Map data and points of interest © OpenStreetMap contributors. Tower locations © OpenCelliD, CC BY-SA 4.0. Satellite pictures: EOxCloudless by EOX (contains modified Copernicus Sentinel data 2016).
Published by CLC Agency. Privacy: https://lastbar.online/privacy — Terms: https://lastbar.online/terms