Finding the right radiation counter apps can be overwhelming with so many options. We've analyzed 242+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.
This application turns your iPhone into a radiation detector by connecting to external hardware. It measures beta and gamma radiation, displaying results in uSv/h and CPM. It's designed to be an affordable radiation detection tool.
This application transforms your iPhone into a radiation detector by connecting to a specialized sensor. It measures beta and gamma radiation, displaying results in uSv/h and CPM. The Pro version offers advanced features like manual settings, oscilloscope, and data logging with location sharing.
This application enhances a radiation monitoring device, offering real-time data analysis, interactive dashboards, and advanced search functions. It visualizes isotopes, detects food contamination, and maps radiation levels geographically, providing detailed insights into radiation environments.
What are the best radiation counter apps for iPhone?
Pocket Geiger Counter Lite tops our radiation counter apps ranking as of August 2026, with a 1.4-star average from 10 App Store ratings, and it's free to download.
Are there free radiation counter apps for iPhone?
Yes — 18 of the top radiation counter apps we rank are free to download, including Pocket Geiger Counter Lite and Radiacode.
Does Pocket Geiger Counter Lite have ads or in-app purchases?
Pocket Geiger Counter Lite has no ads and has no in-app purchases, according to its App Store listing as of August 2026.
How many radiation counter apps are on the App Store?
We track 242+ radiation counter apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
What can Pocket Geiger Counter Lite measure?
Pocket Geiger Counter Lite can detect Beta and Gamma radiation. It measures the dose rate in uSv/h and provides CPM (counts per minute) calculations. The measurement range is from 0.05uSv/h to 10mSv/h.
Does Pocket Geiger Counter Lite work without external hardware?
No, this application cannot measure radiation on its own. It requires external hardware, specifically a PIN photo diode sensor, to be connected to the iPhone's voice output and microphone input to function as a radiation detector.