Use APKPure App
Get HashChecker old version APK for Android
A free and fast way of calculating the hash code of files
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