Is it possible to create a full APP alone?

Question

or sometimes I will need help from another developer? Which help I can ask for?

Answer 1

Yes,why not but you need some patience,hardwork and good knowledge/experience of coding.

Answer 2

Of course you can! Will it be easy? No. Will it be worth it? Most likely yes. Learn, practice, create - and if you get stuck, you have Google, Stack Overflow, and SoloLearn at your fingertips.

Regarding questions you can ask here on SoloLearn, please refer to the following thread:

https://www.sololearn.com/discuss/1316935/?ref=app