What does ?ref=app mean at the end of a SoloLearn Link mean?

Question

Please help me
Example:

https://code.sololearn.com/W49MLySi1Wth/?ref=app
https://code.sololearn.com/WvQtxMqvgk1q/?ref=app
https://code.sololearn.com/WagHqG2Pgm9S/?ref=app
https://code.sololearn.com/Wm7Y6kl693wj/?ref=app

Answer 1

I think it sends to app

Answer 2

AJ Anant thats not the answer i was looking for. i mean what the ?ref=app means

Answer 3

CodeWarrior 𝕮𝖔𝖉𝖊𝖂𝖆𝖗𝖗𝖎𝖔𝖗 You can get your answer here. There is more explanation about this.

https://www.sololearn.com/Discuss/2315620/?ref=app

Answer 4

CodeWarrior 𝕮𝖔𝖉𝖊𝖂𝖆𝖗𝖗𝖎𝖔𝖗 Already explained in shared thread. We have already discussed about it there if you explore more.

Check David Carroll, Lord Krishna and my answer.