Signal Finder

Free for iPhone

Find the best signal around you.

5G Signal Finder is a live 3G, 4G and 5G map that grows with every user's measurements. It tells 5G NSA from SA, tests your speed and guides you to the nearest 5G spot.

  • Free
  • 33 languages
  • iOS 18.6+
See which signal is where

367,075

stored readings

121

countries

59%

5G share of readings

Counts are readings sent from the app, not coverage scores.

Inside the app

Everything, one tap away

Pick a feature and see how it works on the phone.

Live coverage map

See which signal is where

3G, 4G, 5G NSA, 5G SA and satellite links on one map, in the app's colors. Filter by carrier and technology.

  • Five layers
  • Carrier filter
  • Heatmap
  • Community data
See which signal is where

Two kinds of 5G

Not every 5G is the same

Seeing 5G in the status bar does not mean you are on full 5G. The app tells NSA from SA and draws each in its own color on the map.

5G NSA

The 5G radio is anchored to a 4G core network. Fast, but it still relies on 4G infrastructure. This is the most common 5G today.

5G SA

Both the radio and the core are 5G. This is the setup needed for lower latency and newer 5G capabilities.

Türkiye 5G type in readings

NSA 97%SA 3%

Share among stored 5G readings.

See statistics

How it works

The map grows as you move

  1. 01

    Download and allow location

    Pick your country and carrier. Location is used only for coverage measurements.

  2. 02

    The app measures

    Connection type, carrier and NSA/SA are recorded with your location. It can also run in the background.

  3. 03

    The map updates for everyone

    Readings are shared anonymously, and you see the places others have measured.

Also on the web

Browse the data in your browser

Privacy

Your readings, not your identity

  • Anonymous readings

    Your location is used only for anonymous coverage measurements and is never tied to your identity.

  • No account required

    Use the app without signing up. Linking devices by email is entirely optional.

  • You are in control

    Turn background recording off in Settings. The leaderboard shows a nickname, not your real name.

FAQ

Frequently asked questions

Is 5G Signal Finder free?

Yes. The app is free and every feature is available to everyone; there is no subscription or Pro tier.

What is the difference between 5G NSA and 5G SA?

With NSA, the 5G radio is anchored to a 4G core network. With SA, both radio and core are 5G. The app tells them apart and shows each in its own color on the map.

Which countries does it work in?

The app measures in every country. How dense the map looks depends on how many users have measured in that area.

Does background recording drain the battery?

Background recording uses location services. You can turn it off in Settings; the app still measures while it is open.

Is there an Android version?

The iOS version is available from this site today. The Android link will appear here once it is published.

Which languages are supported?

The app is available in 33 languages, including English and Turkish.

The best signal is one tap away

Download for free, find the 5G around you and help the map grow.

Download on the App Store
  • Free
  • 33 languages
  • iOS 18.6+