Wavepad app for smartphone and tablet
 

If you are looking for a basic recorder for your phone or tablet, this one is hard to beat. It's free and uses the phone or tablet built-in mic, so there is nothing to buy. The app has some sophisticated features such as allowing you to choose from three file types, several sample rates and bit depth. It also has some useful effects, including compression, level boost, and echo, noise reduction and fade. You can get this for Apple or android. You can also email recordings or loaf them into iTunes.