Super Easy !

I also jumped out of my chair when I solved it! Good challenge.

easy one

I don't know Android (well, except for what i do with my phone), neither do i know Java (i am a C and assembly aficionado). Nevertheless, this challenge was funny ... Moreover, i have been able to solve it using only online tools (which is great, IMHO) ...

It was freakin awesome!!!! I just jumped out of my chair when the flag matched at last!!!!!!

My very first RE. I loved that the flag was not given as a single piece. Nicely done. Thank you

Ive been told by a number of users that they have had issues with the md5 portion of this challenge. As cracking it was not the focus point I have provided a link below to a website that will successfully decrypt it.

https://www.md5online.org/md5-decrypt.html

My very first RE. I loved that the flag was not given as a single piece. Nicely done. Thank you

Excellent! I learned to use 2 new online tools, one to decompile the api file and the other to decode the MD5 hash.

Thanks your hint

This is a good one. You can use apktool on linux, but use it only if you are a little familiar with assembly. Otherwise use one of the online tools mentioned in the comment.

It was freakin awesome!!!! I just jumped out of my chair when the flag matched at last!!!!!!

To be honest, this was best. Here's the hint: use apktool , dex-tools and jd-gui. Newbie you will surely enjoy this.