Calculate and compare the hash code on your mobile phones conveniently!
It supports MD5 SHA1 SHA256 SHA384 SHA512 CRC32 and more in the future!
It is a material-design application so it looks really nice!
And you can just do it by selecting it in the share(or send) menu of file managers!

From 1.4 STABLE developers are able to use HashChecker's API to compare files
To learn more: https://github.com/Rachel030219/HashChecker