WhosCall
Truecaller
CallerSmart
CallApp
TrapCall
Number Guru
Should I Answer?
Hiya
Java Decompiler
Decompiler.com
CFR
Bytecode Viewer
Java Class File Editor
Cavaj Java Decompiler
ShenmeApp Java Decompiler
.NET Reflector
WhosCallTruecaller - Find a person by a name or phone number worldwide for free using Truecaller.
Decompiler.com - Online Java and Android decompiler. Just drag and drop .JAR or .APK file and browse decompiled content online.
CallerSmart - CallerSmart is an application that is basically used for the purpose of looking up mystery phone numbers for free.
CFR - CFR is a JVM bytecode decompiler - it will decompile modern Java features - up to and including much of Java 9, but is written entirely in Java 6, so will work anywhere! - It'll even make a decent go of turning class files from other JVM languages (โฆ
CallApp - Free Caller ID & Call Blocker app that allows mobile users to block phone calls, identify calls, blacklist unwanted callers and much more.
Bytecode Viewer - A Java 8 Jar & Android APK Reverse Engineering Suite (Decompiler, Editor, Debugger & More)