geotimescale 2

Great little app for the basics. A quick look at the geological tome scale and a few key biological events. Nothing too in depth. Which is fine if all you want is a reference

This app stink

Perfect app for its purpose. I use it frequently. I keep hoping that the developer will produce a “deluxe” edition (paid version) that will let users click a geologic time unit to find out more, e.g. what defines that era, representative fossil images, history of discovery/naming, suggestions for additional reading, etc.).

I received my degree in Geology and I love using this app! It's hard to remember the dates of things, but this app really helps. It's very easy to use. Highly suggest to all professional and amateur geologists.

Great reference to have, offers good information. I'm glad this app has been updated and works now. The scale is intuitive and easy to use while still offering interesting information such as origins and evolution of life

Disappointed. Gives dates for eons, eras, periods, epochs and ages. And gives some tips on what world was like in some. Does not give meanings or origins of names or more importantly what changes occurred to necessitate a name change. Names without context are meaningless.