Safecast iOS App Updated

A massive update to the iOS app just went live in the app store. If you don’t have it already you can download it here. In addition to the full Safecast database, there are new map layers showing natural background (and subtractions) as well as interpolations.

Combined with your iPhone’s GPS this continues to function as the best (only?) virtual geiger counter available. It’s free, so please consider downloading it now.
Full update notes after the jump.

What’s New in Version 1.6.3
– All new map engine, built for speed and flexibility
– Smoother images when zooming in (bilinear interpolation)
– Support for custom map layer (enable in settings)
– User points can be turned off

New Map Data Layers
– Japan natural radiation background
– Safecast background subtraction
– NOAA global radiance (aka night lights) (non-radiological)

Map Data Updates
– Safecast data updated
– Safecast and NNSA interpolations are now data layers and will accurately show their values.

Map Info Tool
– A cursor can now be used to display the numeric value and latitude / longitude for any point on the map

– When the map is tracking your location, the closest data point to you is automatically determined and displayed with distance and value.

Geiger Counters
– Device Selection List: Sets optimal parameters for Safecast/IMI Onyx, Inspector, and several other models.
– Added Dead Time Compensation
– Added optional 44.1 kHz sample rate. This is for users connecting devices with line input cables. Count rates have been tested up to 350K CPM using this mode with <1% error. Scintillation Counters ====================== - Fixed bug that ignored custom delay setting (10 was always used) Additional Information ====================== - The new Japan natural background radiation is similar to the existing NURE layer for North America. It is a combination of terrestrial and cosmic radiation. - Terrestrial radiation is from naturally occuring uranium, thorium, and potassium geological deposits. - Cosmic radiation is principally muons from space. - Natural radiation levels vary, and this is only an approximation.

About the Author

Sean Bonner


Sean Bonner is a co-founder and Global Director of Safecast. Based in Los Angeles, he's an Associate Researcher at the Center For Civic Media at the MIT Media Lab and a Shuttleworth Fellow.