GammaPix Lite - Gamma Radiation Detector
Image Insight, Inc. Tools
Detects gamma radiation using the camera.
- Rating
- 2.4
- 942 ratings
- Downloads
- 100K+
- on Google Play
- Price
- Free
- No in-app purchases
- Updated
- Aug 5
- 2026 · v4.6.0
Screenshots
About GammaPix Lite - Gamma Radiation Detector
See if your device is compatible at http://gammapix.com/devices
Developed initially for several federal agencies, turns your phone into a detector of ionizing radiation. The GammaPix technology has been successfully tested at independent labs with calibrated sources. It was developed with support from the U.S. Department of Defense, the Domestic Nuclear Detection Office (U.S. Department of Homeland Security), and the Transportation Research Board (U.S. National Academy of Sciences). We were encouraged by them to bring this technology to the public.
Worried about accidental exposure to radioactive material or acts of terrorism? The GammaPix App can provide timely warning of the presence of radioactivity using nothing more than your phone's camera. While it is NOT meant to be a substitute for dedicated ionizing radiation detectors, it is a rapid and convenient way of making preliminary threat estimates.
We hope you enjoy using GammaPix!
Notes:
• Various circumstances may compromise the measurement or make the results inaccurate.
• Automatic monitoring will use ~1-5% of your battery, but could warn you of radiation even when not using the App.
• A 5 to 10-minute initialization is required before you use the application for the first time. We know this step slows you down, but it really is necessary to get the best results. Please perform this step in a place you know is likely to be free of excessive radioactivity, with your device cool and unplugged.
• For best results make sure no light is getting into the camera when you run the GammaPix App. Putting the phone in your pocket or covering it with a book works well.
• A reading takes about 3 to 5 minutes if there's no danger. Dangerous levels will be reported sooner.
• Try out Settings > Use long third stage for a more sensitive reading!
• The GammaPix App will not work on some phone models because the camera optimization at low light levels gives "bright" pictures.
• Not all phone models have been calibrated. We'll use your readings to provide a calibration for your model. The more you take, the sooner we'll have a calibration.
Developed initially for several federal agencies, turns your phone into a detector of ionizing radiation. The GammaPix technology has been successfully tested at independent labs with calibrated sources. It was developed with support from the U.S. Department of Defense, the Domestic Nuclear Detection Office (U.S. Department of Homeland Security), and the Transportation Research Board (U.S. National Academy of Sciences). We were encouraged by them to bring this technology to the public.
Worried about accidental exposure to radioactive material or acts of terrorism? The GammaPix App can provide timely warning of the presence of radioactivity using nothing more than your phone's camera. While it is NOT meant to be a substitute for dedicated ionizing radiation detectors, it is a rapid and convenient way of making preliminary threat estimates.
We hope you enjoy using GammaPix!
Notes:
• Various circumstances may compromise the measurement or make the results inaccurate.
• Automatic monitoring will use ~1-5% of your battery, but could warn you of radiation even when not using the App.
• A 5 to 10-minute initialization is required before you use the application for the first time. We know this step slows you down, but it really is necessary to get the best results. Please perform this step in a place you know is likely to be free of excessive radioactivity, with your device cool and unplugged.
• For best results make sure no light is getting into the camera when you run the GammaPix App. Putting the phone in your pocket or covering it with a book works well.
• A reading takes about 3 to 5 minutes if there's no danger. Dangerous levels will be reported sooner.
• Try out Settings > Use long third stage for a more sensitive reading!
• The GammaPix App will not work on some phone models because the camera optimization at low light levels gives "bright" pictures.
• Not all phone models have been calibrated. We'll use your readings to provide a calibration for your model. The more you take, the sooner we'll have a calibration.
What’s new
Version 4.6.0 · Updated August 5, 2026
• Update for latest Android compatibility. • Improve background measurements for your protection. • Bugfixes.
User reviews
very good. spotted the rsdioactive barium I took for a stress test.
Works well. Surprisingly accurate considering it requires no external hardware. I'm considering upgrading to the premium version
its thermoluminescent techno(TLDs) As gamma rays goes through a crystal, it stores the energy as light. Hence covering the camera eye to calibrate. In TLD processing the stored energy is released and measured 4 dose. For improved rad detection Spend about 25 bucks get a Geiger Mulller Tube. A hermetically sealed gas...
Actually worked . I thought that it is a joke and made for fun but I got my real counter at the hospital with me and I got an x ray the counter for a moment showed 70mkSv/h and the phone shown 122 . Its a big deference but it alerted me
Excellent
This app does its job properly. For anyone not knowing, this app needs access to the camera because gamma rays can interact with the camera's sensor, showing a sort of "line". It needs completely dark environment (use black tape to cover lens) because to detect radiation, it measures the amount of light flashes in a...
Frequently asked questions
What is GammaPix Lite?
GammaPix Lite is a gamma radiation detector app that turns your phone into a detector of ionizing radiation.
Who developed GammaPix Lite?
GammaPix Lite was developed initially for several federal agencies, with support from the U.S. Department of Defense, the Domestic Nuclear Detection Office, and the Transportation Research Board.
Can GammaPix provide timely warnings of the presence of radioactivity?
Yes, GammaPix App can provide timely warnings of the presence of radioactivity using your phone's camera.
Is GammaPix a substitute for dedicated ionizing radiation detectors?
No, GammaPix is not meant to be a substitute for dedicated ionizing radiation detectors, but it is a rapid and convenient way of making preliminary threat estimates.
How much battery does automatic monitoring with GammaPix use?
Automatic monitoring will use approximately 1-5% of your battery.
How long does initialization take before using the GammaPix App for the first time?
Initialization takes 5 to 10 minutes and is required before using the application for the first time.
How can I get the best results with GammaPix App?
To get the best results, make sure no light is getting into the camera by putting the phone in your pocket or covering it with a book.
How long does a reading with GammaPix take?
A reading takes about 3 to 5 minutes if there is no danger, but dangerous levels will be reported sooner.
Are all phone models compatible with GammaPix App?
No, the GammaPix App will not work on some phone models due to camera optimization at low light levels.
Are all phone models calibrated for GammaPix?
Not all phone models have been calibrated, but readings from users will be used to provide calibrations for different models.
Alternatives to GammaPix Lite - Gamma Radiation Detector
Looking for apps like GammaPix Lite - Gamma Radiation Detector? Here are 3 similar Android apps on Google Play. The highest rated is GammaPix - Gamma Rad Detection (3.8/5), and 2 of the 3 are free to download.
| App | Rating | Price | Installs | Compare |
|---|---|---|---|---|
| GammaPix Lite - Gamma Radiation Detector | 2.4 / 5 | Free | 100,000+ | |
| GammaPix Pro Command Center | – | Free | 1,000+ | Compare |
| GammaPix Training Simulator | – | Free | 500+ | Compare |
| GammaPix - Gamma Rad Detection | 3.8 / 5 | 6.99 USD | 1,000+ | Compare |