When comparing Google Droid Sans Mono vs Anka/Coder, the Slant community recommends Anka/Coder for most people. In the question“What are the best programming fonts?” Anka/Coder is ranked 20th while Google Droid Sans Mono is ranked 24th. The most important reason people chose Anka/Coder is:
The zero really stands out and looks quite different from zeroes in most other fonts. The addition of the slash means you'll never have to second guess if that character is actually an "O" or if it is a "0".
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Makes code very easy to read, especially if using the version where zeroes are slashed
Feels very easy to read code, even in a very small px (like 10 or 9). Letters are slightly separated, l (ell) and 1 are different, " (opening and closing quote) is straight and not angled, and the "Zero Slashed" version makes it an excellent font for coding.
Pro Size and spacing are excellent for readability
Very easy to scan through code. Large character size for fonts of the same type size.
Pro Looks neat
Droid Sans Mono looks beautiful. The only disadvantage is that there's no italics or bold.
Pro Zero distinguishable thanks to protruding slash
The zero really stands out and looks quite different from zeroes in most other fonts. The addition of the slash means you'll never have to second guess if that character is actually an "O" or if it is a "0".
Pro Open source
Because it's open source, Anka/Coder is freely available to anyone.
Pro Practical yet stylish
Anka/Coder has just the right balance between style and readability.
Pro Compact
Condensed and, even to a greater extent, narrow versions allow for compact lines without sacrificing readability.
Cons
Con Zero is not slashed or dotted
This can make it hard to distinguish the letter "O" from the number "0".
Con Superceded by Google Noto Sans Mono
Con Some characters aren't distinguishable from others
This is especially the case with the colon, which is barely distinguishable from the semi-colon.
Con Not quite as charming at sizes of 10 and 11 pt
There are some hinting issues at these sizes: upper curves are bent sharper while the lower look is squashed to the baseline. Also, the dot of "i" appears merged with the stick at 11 pts. At 9 pts, the font looks good again (nice for watches, compiler output, etc).