Hi I used Heisig's method based on his book remember the Kanji, I think it is currently the fastest method to learn the english meanings of the kanji before learning pronunciation within context. I learned the English meaning of about 2000 kanji in around 4 months. Its spaced time repetition through stories and mnemonics (don't use srs methods without mnemonics, the brain needs context) . I think the Kanji Koohii website sets it all up really well. I think wanikani.com is similar, but kanji koohii is free.

I am using the "Kanji Study" app. It is really complete and I can't stop using it since I decided to install it two months ago.

I use http://zkanji.sourceforge.net/, https://apps.ankiweb.net/ with the kodansha card set as well as my own, and jisho.org.

I am using WaniKani and it has been working perfectly up to now. Even though I had a moment of pause I managed to learn over 550 kanji. https://www.wanikani.com/ It's subscription-based, but the first three levels (there are ~60 with N2 placed at level 48) are free. I should warn you that it is a Spaced-Repetition System, which means it can be slow at start (you learn for the first time a radical and you have to repeat it for a couple days before the first kanji). If you are regular with it it can help you a lot! :D