Links to the best apps I have mentioned:

GOD TIER
Rocket Languages:
Spanish: https://www.rocketlanguages.com/spani...
Russian: https://www.rocketlanguages.com/russi...
Portuguese: https://www.rocketlanguages.com/portu...
Korean: https://www.rocketlanguages.com/korea...
Japanese: https://www.rocketlanguages.com/japan...
Italian: https://www.rocketlanguages.com/itali...
Hindi: https://www.rocketlanguages.com/hindi...
German: https://www.rocketlanguages.com/germa...
French: https://www.rocketlanguages.com/frenc...
Chinese: https://www.rocketlanguages.com/chine...
Arabic: https://www.rocketlanguages.com/arabi...
Pimsleur: https://imp.i271380.net/2rjjZQ
Innovative Language Learning:
JapanesePod101: https://www.japanesepod101.com/member...
SpanishPod101: https://www.spanishpod101.com/member/...
FrenchPod101: https://www.frenchpod101.com/member/g...
ChineseClass101: https://www.chineseclass101.com/membe...
RussianPod101: https://www.russianpod101.com/member/...
ItalianPod101: https://www.italianpod101.com/member/...

GREAT
LingoPie: https://lingopie.com/?ref=ndq5m2j&utm...
MosaLingua: https://academy.mosalingua.com/mosawe...
Beelinguapp: https://beelinguapp.com/
FluentU: https://www.fluentu.com/?rfsn=7063252...
LiveLingua: https://www.livelingua.com/?rid=LOISTAL
LingoDeer: https://www.lingodeer.com/
LingQ: https://www.lingq.com/?referral=the_l...
Glossika: https://ai.glossika.com/r/loistalagrand

Also, check out Fluent Falcon, the language learning app I am developing: https://forms.gle/9fmPMji4qYdNCoAw8