Nokia N810

Recently I picked up a Nokia N810 on eBay for $60.

The only app I’ve discovered that I don’t already have on my phone is ATI (Almost Real TI), a Texas Instruments graphing calculator emulator.

What sets this app apart from apps I’ve used on iOS and Android is:
-there are 5 calculators to choose from (see picture below)
-the interfaces look just like the actual TI calculators
-it was free

The downside is that there is no longer any app support for this device, it’s OS, or software such as this.

The upside is that I now have 5 different models of TI calculators on one device for only $60. This is convenient, since I’m high school math teacher.