Hi all,
First of all, I have to apologize, I don't follow bitcointalk often but will try to come here more often!
So about your tech questions:
Does Coinami support POS only Coins? I notice that BlackCoin is a part of Coinami but if able to integrate a POS only Coin, will it Stake?
What kind of server setup is needed for trusted nodes?
Do you offer support for setup and integration for payment in btc?
How do upgrades and potential hardforks come into play?
Coinomi can support POS coins but it cannot stake. The reason is that to verify that a block signer can actually sign the block it needs the full UTXO set that can be several MB in size. One solution is for the POS coins to create delegate keys for the actual staking (but not spending) and leave the master keys in the lightweight wallet.
The trusted servers are plain electrum servers in some cases modified a bit to support each coin.
For the payed integration you can send us to support at coinomi.com.
The hardforks are tricky business because we need to manually update the underlying peer-to-peer node. Fortunately the forks are rare (except in Dash) and the developers usually inform us about it.
what's the criteria for new coins? how do you add them?
If it has a good community and market cap we will probably add it ourselves (for non-BTC clones it will take more time). For very small coins, the developers usually create pull requests and host their own electrum servers. Most of the time I personally redesign the icon of the coin to match the existing style of the application. Read
here for more info.
Is there a downloadable version of this that doesn't use Github? I can't compile codes at all, and would be really nice to use a wallet like this.
You don't have to. The link that leads to
github has a downloadable APK usually named as coinomi-vX.Y.Z.apk
I think Coinomi is experiencing a problem regarding syncing of Bitcoin transactions! The new transactions aren't being shown on the app still after doing several refreshes. While I can see it on Blockchain easily on searching my wallets extended public key (xpub). OP, please fix this issue as soon as possible since it becomes hectic to check for newer transactions via Blockchain! Then what's the use of this app right ?! BTW, I'm not experiencing this problem with altcoins!
Same here. Completely stuck... Sometimes the wallet shows "0" for my balance, sometimes the proper balance but then the app is totally frozen... Quite scary... Too bad, as it was a nice app. Hope it will be solved soon.
Do you still have this problem? Could you send us a message to support at coinomi.com to debug this issue?
If you have backed up your recovery phrase (and if enabled, your BIP39 passphrase) your coins are completely safe because your addresses are generated deterministically from it.
Thank you all for your comments and ideas.
Sincerely,
John L. Jegutanis
Founder and CTO of Coinomi