[APP] Resistor Tool 2.3 - Calculator with reverse search capabilities

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Hello

This is the first app I wrote for Android on my spare time. It is not groundbreaking or super complex, just a resistor calculator with reverse search capabilities. It is free on the market, I am not looking for any commercial profits but rather just suggestions (especially the UI, which I am weak at). I am looking to writing a new Grade Management App which can let a person record all their grades/weighting/courses and provide performance analysis, etc. But before I get into that, I really want to learn more about UIs from the community because I know it can be a lot better than the resistor app. So onto the app itself:

* 4 and 5 Band Resistor Support *
* Supports Reverse Lookup *

This Resistor Tool can display the resistance value based on the color bands. In addition, it can also display the resistor colors based on an inputted resistance value.

In other words, whether you have a resistor and want to find out its value or vice versa, this app can get it done.

I am a starter in Android Programming so all suggestions and ideas are welcome, thanks!

LINK