Then theres tokens that start out as ERC-20 and eventually want to move to their own chains, which means your wallet is gonna have to be responsible for the swap.
On iOS specifically theres distribution issues where some cryptotokens are allowed and some aren't.
Also one way that wallets make money is by listing fees, so if you don't pay up forget about your coin getting listed. I heard from Vertcoin community that Exodus specifically was asking for 200,000 USD for a listing
The Ledger Nano S supports "apps" that can provide compatibility with many coins, and could theoretically support many more. (https://www.ledgerwallet.com/cryptocurrencies)
You can find more examples on google.
I built something like this with a postgres database of transactions, a python script that scrapes the coinmarketcap api, and influxdb + grafana. It works well and suits my needs.
Blockstack is new to me. I've just been starting to dig into Ethereum. Would be really interested to hear experiences / comparisons between the two.
For me, this is not yet the killer app that lets me track all my coins that are spread around various wallets and exchanges.
One more note: not all coins are bought, some are mined. It would be nice to have an option when adding a holding that it has been mined and not bought.
How long did this take you to make?
The idea there is just to have a simple portfolio bookmarked without login, emails, passwords cookies or an app installed.
I'll write a separate Show HN later. Sorry for the shameless self-ad.
The best option for folks today is exodus.io, which is a multicurrency platform-ind js wallet. You control 100% of the key material and control the funds.
There is also jaxx and coinomi.com that can act as multi-currency wallets.
if you're concerned about security just use the official client