Sans

What is a sans-serif font that still clearly differentiates similar characters like l 1, i etc
Which font has different I and L?What font is similar to sans serif?How can you tell the difference between L and 1? Which font has different I and ...
Any usability studies of the readability of Open Sans?
Is Open Sans readable?Is Open Sans a good font?Is Open Sans font free for commercial use? Is Open Sans readable?According to Google, Open Sans is “o...