I have a few questions:
1. Will there be iOS and Android apps? I don't see that on the Roadmap.
Regarding fund release:
2. 30% release at the end of the crowdsale - How will token distribution calculated if you can only sell 30% of the altcoins?
3. 30% at the delivery of the beta wallet and first API Cluster - When will official wallet be released?
1- Yes it is planned, they will be delivered at the same time, it is normal to deliver the wallet with all the possible version.
2- The exchange process will be handled by the escrows.
3- The wallets will be functionnal, the official release includes the dex, this is why we said Beta.
I registered NVO account and submited my bitcoin address,also get many altcoins private keys, but i have no idea for the next, does anybody can help me! by the way to tell me the altcoins private keys for what?
Yes, it was a small issue with the API, feel free to join us on slack if you have other issues.
is there some way to see how much we've contributed before the crowdsale goes final?
Is there someway to see that my contribution went through officially?
If you sent Bitcoin, you can check the TX in a block explorer, if it is confirmed, then it went through.
I am shortly before investing, but I have one (hopefully) last question.
At the end of the ICO the altcoins will be "exchanged" for bitcoins for the calculation of the amount of NVOT each investor gets (as I read in other posts). Will this exchange-factor be determined by real exchange rates (the NVO team exchanges the altcoins for btc in an exchange for real) or will it just be calculated with a factor say from coinmarketcap.com (1 ETH = 0,145 BTC) for example?
Thanks for your help

It will use factors from coinmarketcap, in order to keep the higher value during the exchange. As they will be exchanged on different exchanges in order not to dump the coins.