# FieldTester > Mobile app for testing phone signal strength and network data/WiFi quality. (iPhone/iPad app by Staircase 3, Inc.) - Source: https://appshunter.io/ios/app/fieldtester/id590226245 (this page in markdown: same URL + `.md`) - Developer: [Staircase 3, Inc](https://appshunter.io/developer/590226248) - Category: Utilities, Productivity - Price: Free - Rating: 2.40/5 from 39 App Store ratings · 53 written reviews indexed - Age rating: 4+ - Requires: iOS 5.0 · 1 MB - Languages: American English, Dutch, French (France), German (Germany), Italian, Japanese, Polish, European Portuguese, Russian, Chinese (Simplified, China) and 3 more - Released: 2013-01-16 - Data updated: 2026-06-10 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/fieldtester/id590226245/reviews.md ## What is FieldTester? ★★★★ Field Tester is a simple application to quickly test the quality of your connection ★★★★ Field Tester can be used to quickly evaluate the strength of your phone signal, and the quality of your data/WiFi network. ★★ FEATURES ★★ • Measure phone signal strength (dBm and percentage) • Latency test for your data or connected WiFi network • Foreground and background execution of tests • History of all tests, as well as relevant application state updates • Optional location tracking to associate tests with their geolocation • Settings screen to customise all desired test parameters • Map view showing location and details for each test ★★ PRIVACY POLICY ★★ Location and network data is retrieved but stored only on the phone. No private user data is ever collected.
 ★★ NOTES ★★ Continued use of GPS running in the background can dramatically decrease battery life. ## Key features - Measure phone signal strength (dBm and percentage) - Latency test for data/WiFi - Foreground and background testing - Test history and state updates - Optional location tracking - Customizable test parameters - Map view of test locations ## Recent user reviews (10 of 53) All indexed reviews: https://appshunter.io/ios/app/fieldtester/id590226245/reviews.md ### 5/5 — Update? *2018-04-02* Can’t use this app on iOS 11, please release update version ### 1/5 — Vanished = NO SUPPORT OR UPDATES *2018-03-04* This developer seems to have vanished like so many apple developers lately ### 1/5 — Useless app. Has not updated in two years *2017-11-20* I have been holding out for this app for awhile now hoping that they would update. We used to use it to check signal strength (cellular dBm readings) for quite awhile... They have not and probably will not update. Don't download. ### 1/5 — Doesn't display active signal strength *2017-01-14* Seems to just be a static display of cell signal: 0% and -113 dB for both iPhone and iPad. ### 1/5 — Doesn't show any more than phone already has *2016-09-23* Signal strength is exactly what my phone has so it is just re-reporting that info. Pointless ### 3/5 — Great potential but bugs to be fixed *2016-05-29* Firstly, congrats on an app that provides functionality much lacking on igadgets. On iPhone 4 with iOS 7, it is working. But on iPhone 6 with iOS 9 it doesn't give me carrier details: carrier title is not correctly shown (just says "Carrier"), and signal strength shows -113dBm. Can this be fixed, or have Apple done what they always do and restrict access to all the useful system data? ### 1/5 — Field Tester no workie *2016-04-21* The field strength sits at "-115dB" all the time. I even tried reloading it but no luck. The latency reading does seem to work however. Since the creator hasn't bothered to fix it for at least 6 months I'd find another app. ### 1/5 — Reinstalled twice; not working. *2016-04-04* The WiFi meter was stuck on 113dMmW. Pretty useless really. ### 1/5 — Shame about the signal strength *2016-03-01* I think this would be a great app if it worked. The signal strength never moves, 0%. The ping responds and gives some info. Perhaps it works on some phones but not my 6. Hope they fix it soon. ### 1/5 — UPDATE THE APP!!! *2016-01-14* Since recent iOS software updates, this app does not work. This was the best tool for reading signals. Now it's. Worthless app. ## Frequently asked questions about FieldTester ### What does Field Tester do? Field Tester is a utility application designed to help users quickly evaluate the quality of their mobile phone signal and their data or WiFi network. It provides detailed measurements and logs historical test data. ### What are the key features of Field Tester? Key features include measuring phone signal strength in dBm and percentage, performing latency tests for data/WiFi networks, running tests in the foreground or background, and maintaining a history of all tests. It also offers optional location tracking to associate tests with their geolocation and a map view of these locations. ### Is Field Tester free to use? Yes, based on the provided information, Field Tester is a free application. It does not have in-app purchases or advertisements. ### Can I track my test results over time and location? Yes, the app keeps a history of all tests performed. It also offers optional location tracking, allowing you to associate tests with their specific geolocation and view them on a map. ### What kind of network information can I get? You can measure your phone's signal strength, displayed in both dBm and percentage. Additionally, you can perform latency tests to assess the performance of your data or connected WiFi network. ## Version history (last 2 releases) ### 1.0.1 — 2013-04-17 Bug fixes Changed wording for settings screen ### 1.0.0 — 2013-01-16 No release notes. ## More apps by Staircase 3, Inc - [WalkTest - Cell/Wifi Testing](https://appshunter.io/ios/app/walktest-cellwifi-testing/id6670145130) All apps by Staircase 3, Inc: https://appshunter.io/developer/590226248 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*