Problems with latest update for iPhone

[emma_lu]

Today I downloaded the most recent update on mi iPhone4 and since then I've been unable to use it.
It seems to have problem with synchronization.

Shall I reinstall it? Will I loose all my achievements if I do so?

Hope to receive help soon. I cannot live without Duolingo anymore

[liamtbrand]

You wont lose anything, everything should be synced to their servers.. so just re-install? If that doesn't work, maybe you have an older version of iOS which needs updating. (The only thing you could lose is if you have done offline lessons and it hasn't synced them yet)

[emma_lu]

It worked and it seems not to have loose anything. Thank tou so much!!!