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Show HN: Cryptocurrency portfolio app on Blockstack

94 points by aulneau_ 9y ago

headsupernova 9y ago
Really digging the design and functionality on this! Nice work.
- paul7986 9y ago
  Indeed great Desktop design!
workaccount 9y ago
Beautiful design! Great work on this. What inspired you to do this?
xwvvvvwx 9y ago
Nice work! This is really slick :) 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.
Kiro 9y ago
OT but I'm in a situation where I have hundreds of different altcoins on a handful of exchanges. I'm looking to move these into my own wallets but it seems that I will need to get so many different wallets that it's not worth the hassle. Why isn't there a wallet which can handle all kind of cryptocurrencies? The most I've seen in one is like 10.
- tylersmith 9y ago
  I think that's what Jaxx is trying to do. They don't have hundreds of different coins but they have almost 50. https://decentral.zendesk.com/hc/en-us/articles/218373867-Which-tokens-does-Jaxx-support- https://decentral.zendesk.com/hc/en-us/articles/218373867-Wh...
  - Grangar 9y ago
    Jaxx works wonky and doesn't support ERC20 tokens though.
- dreit1 9y ago
  As someone working on cryptocurrency wallets its a much more difficult task than you think. First you'd have to be compatible with multiple chains, then you have to support multiple contracts on those multiple chains. 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
- asciimo 9y ago
  Coinomi supports a surprising number of coins, and I have used it as an intermediary. I'm not sure that I would use it for long-term storage without knowing more about the company. The Ledger Nano S supports "apps" that can provide compatibility with many coins, and could theoretically support many more. (https://www.ledgerwallet.com/cryptocurrencies https://www.ledgerwallet.com/cryptocurrencies)
  - Empact 9y ago
    See also: Exodus, Trezor You can find more examples on google.
- abrkn 9y ago
  The Ledger Nano S hardware wallet can hold just about every cryptocurrency, including ERC20 tokens.
  - hanniabu 9y ago
    Not out of the box. At the moment there's only about 20-30 crypto-assets that have established support.
  - StavrosK 9y ago
    As the sibling says, it's much less than "every" and closer to 20. There's a lot missing, eg Monero, which we've been waiting for.
45h34jh53k4j 9y ago
Yeah, nah. Dont store your coins in sites or dapps or anything that you do not control 100% yourself. 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.
- mephitix 9y ago
  This has nothing to do with storing coins. It's a portfolio tracker.
- aulneau_ 9y ago
  I agree! However, you're not storing your coins in this app, it's just to track how they're doing within the larger crypto market :)
- mhluongo 9y ago
  Jaxx is a very low security wallet, and this has nothing to do with storage- it's watch-only like Blockfolio.
- cryptodogemoon 9y ago
  this assumes trusting a 3rd party wallet to not generate weak keys or backdoors, as has happened many times already if you're concerned about security just use the official client
shocks 9y ago
Neat! 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.
- bousaid 9y ago
  How were you able to update the database frequently with python? I’m trying to basically have a database that mirrors historical data on an exchange, that also updates every 5 minutes — I’m trying to decide between a node server / python aws lambda.
  - shocks 9y ago
    I'm not updating the database that frequently. Every 5m I poll for new data and I update prices in the db.
r1nkgrl 9y ago
This is the first Mac application that I have come across that does not support my version of Mac OSX (10.11). Too bad it doesn't work in the browser version of Blockstack.
- aulneau_ 9y ago
  Coins, or Blockstack? It's just a webapp, so it should work in any mac os version :)
cappie013 9y ago
I'd love to use it but... No HTTPS!?
- aulneau_ 9y ago
  We've been getting sporadic reports that people are using `http` vs `https`. It _should_ auto redirect you to `https`! Apologies, we 100% intend for every user to use https, will dig in further :)
  - longstaff2009 9y ago
    you can't use Blockstack storage on sites served over https at the moment https://github.com/blockstack/blockstack-browser/issues/631 https://github.com/blockstack/blockstack-browser/issues/631
    - aulneau_ 9y ago
      That has been fixed -> https://github.com/blockstack/blockstack.js/releases/tag/v0.14.0 https://github.com/blockstack/blockstack.js/releases/tag/v0....
dmichulke 9y ago
Somewhat similar: http://www.cryptoport.net http://www.cryptoport.net 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.
Blindedwino 9y ago
I gave it a quick try - Coinsapp only seems to support a very few coins while there are plenty of portfolio apps out there that include pretty much every single altcoin out there (Blockfolio comes to mind). 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.
sAbakumoff 9y ago
That's odd that coinsapp claims to be "one of the first apps built on Blockstack ever" but Blockstack does not even mention coinsapp in the "Featured Apps on Blockstack" section on the main page.
- mrjmd 9y ago
  It's part of the latest round of app bounties, so I assume it will be getting added soon.
- aulneau_ 9y ago
  Yeah, if you are in the Blockstack browser, you'll see it right there on the home page :) there's a delay between the homepage updates (marketing) and what is live within Blockstack itself
atarian 9y ago
Wow, well done. This looks really polished. One minor nitpick I have is just on the landing page.. you have these gradient circles for each feature which doesn't really add anything to the content. It would be better to have icons or even remove them. How long did this take you to make?
tharindufit 9y ago
You may also like https://cointracker.cash https://cointracker.cash It's simpler to use than lots of apps available to track altcoins. Free version is available to test all the functionality and with a one off payment you can unlock the full cryptocurrency set of over 1000+.
manduz 9y ago
https://altpocket.io/ https://altpocket.io/ is an awesome portfolio manager.
QML 9y ago
What language was used for the backend and frontend? I'm trying to make a web interface for a small project but I think I love Java too much to learn JS or HTML...
- Ninn 9y ago
  What a pristine example of next level stockholms syndrom! With that attitude it might benefit you more than anything. Theres nothing that gets me to not hire someone than the person saying “Im a {language} developer”
  - QML 9y ago
    Fine, I also love Python :P
  - StavrosK 9y ago
    Might be the opposite, for example there are some languages I consider a waste of time and refuse to learn. Mainly languages too close to my current skillset, as I feel there are other languages that can teach me more with the same effort, or languages I consider downright badly-designed.
deleted 9y ago
[deleted]
roflchoppa 9y ago
its cool idea, but I like the idea of holding my own keys on my machine/paper opposed to delegating it to an app.
malasayeq 9y ago
The best way to break a couple up is to hire a hacker to do it for you. Hackers can hack their text and whatsapp messages which you can always use to your advantage, dig up dirty secrets from victims' phones, social media accounts, emails etc...and the good thing about it is that they will break up and nobody will suspect you caused the break up. visit: darkwebsolutions. co

94 points by aulneau_ 9y ago

headsupernova 9y ago

Really digging the design and functionality on this! Nice work.

paul7986 9y ago
Indeed great Desktop design!

workaccount 9y ago

Beautiful design! Great work on this. What inspired you to do this?

xwvvvvwx 9y ago

Nice work! This is really slick :) 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.

Kiro 9y ago

OT but I'm in a situation where I have hundreds of different altcoins on a handful of exchanges. I'm looking to move these into my own wallets but it seems that I will need to get so many different wallets that it's not worth the hassle. Why isn't there a wallet which can handle all kind of cryptocurrencies? The most I've seen in one is like 10.

tylersmith 9y ago
I think that's what Jaxx is trying to do. They don't have hundreds of different coins but they have almost 50. https://decentral.zendesk.com/hc/en-us/articles/218373867-Which-tokens-does-Jaxx-support- https://decentral.zendesk.com/hc/en-us/articles/218373867-Wh...
- Grangar 9y ago
  Jaxx works wonky and doesn't support ERC20 tokens though.
dreit1 9y ago
As someone working on cryptocurrency wallets its a much more difficult task than you think. First you'd have to be compatible with multiple chains, then you have to support multiple contracts on those multiple chains. 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
asciimo 9y ago
Coinomi supports a surprising number of coins, and I have used it as an intermediary. I'm not sure that I would use it for long-term storage without knowing more about the company. The Ledger Nano S supports "apps" that can provide compatibility with many coins, and could theoretically support many more. (https://www.ledgerwallet.com/cryptocurrencies https://www.ledgerwallet.com/cryptocurrencies)
- Empact 9y ago
  See also: Exodus, Trezor You can find more examples on google.
abrkn 9y ago
The Ledger Nano S hardware wallet can hold just about every cryptocurrency, including ERC20 tokens.
- hanniabu 9y ago
  Not out of the box. At the moment there's only about 20-30 crypto-assets that have established support.
- StavrosK 9y ago
  As the sibling says, it's much less than "every" and closer to 20. There's a lot missing, eg Monero, which we've been waiting for.

45h34jh53k4j 9y ago

Yeah, nah. Dont store your coins in sites or dapps or anything that you do not control 100% yourself. 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.

mephitix 9y ago
This has nothing to do with storing coins. It's a portfolio tracker.
aulneau_ 9y ago
I agree! However, you're not storing your coins in this app, it's just to track how they're doing within the larger crypto market :)
mhluongo 9y ago
Jaxx is a very low security wallet, and this has nothing to do with storage- it's watch-only like Blockfolio.
cryptodogemoon 9y ago
this assumes trusting a 3rd party wallet to not generate weak keys or backdoors, as has happened many times already if you're concerned about security just use the official client

shocks 9y ago

Neat! 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.

bousaid 9y ago
How were you able to update the database frequently with python? I’m trying to basically have a database that mirrors historical data on an exchange, that also updates every 5 minutes — I’m trying to decide between a node server / python aws lambda.
- shocks 9y ago
  I'm not updating the database that frequently. Every 5m I poll for new data and I update prices in the db.

r1nkgrl 9y ago

This is the first Mac application that I have come across that does not support my version of Mac OSX (10.11). Too bad it doesn't work in the browser version of Blockstack.

aulneau_ 9y ago
Coins, or Blockstack? It's just a webapp, so it should work in any mac os version :)

cappie013 9y ago

I'd love to use it but... No HTTPS!?

aulneau_ 9y ago
We've been getting sporadic reports that people are using `http` vs `https`. It _should_ auto redirect you to `https`! Apologies, we 100% intend for every user to use https, will dig in further :)
- longstaff2009 9y ago
  you can't use Blockstack storage on sites served over https at the moment https://github.com/blockstack/blockstack-browser/issues/631 https://github.com/blockstack/blockstack-browser/issues/631
  - aulneau_ 9y ago
    That has been fixed -> https://github.com/blockstack/blockstack.js/releases/tag/v0.14.0 https://github.com/blockstack/blockstack.js/releases/tag/v0....

dmichulke 9y ago

Somewhat similar: http://www.cryptoport.net http://www.cryptoport.net 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.

Blindedwino 9y ago

I gave it a quick try - Coinsapp only seems to support a very few coins while there are plenty of portfolio apps out there that include pretty much every single altcoin out there (Blockfolio comes to mind). 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.

sAbakumoff 9y ago

That's odd that coinsapp claims to be "one of the first apps built on Blockstack ever" but Blockstack does not even mention coinsapp in the "Featured Apps on Blockstack" section on the main page.

mrjmd 9y ago
It's part of the latest round of app bounties, so I assume it will be getting added soon.
aulneau_ 9y ago
Yeah, if you are in the Blockstack browser, you'll see it right there on the home page :) there's a delay between the homepage updates (marketing) and what is live within Blockstack itself

atarian 9y ago

Wow, well done. This looks really polished. One minor nitpick I have is just on the landing page.. you have these gradient circles for each feature which doesn't really add anything to the content. It would be better to have icons or even remove them. How long did this take you to make?

tharindufit 9y ago

You may also like https://cointracker.cash https://cointracker.cash It's simpler to use than lots of apps available to track altcoins. Free version is available to test all the functionality and with a one off payment you can unlock the full cryptocurrency set of over 1000+.

manduz 9y ago

https://altpocket.io/ https://altpocket.io/ is an awesome portfolio manager.

QML 9y ago

What language was used for the backend and frontend? I'm trying to make a web interface for a small project but I think I love Java too much to learn JS or HTML...

Ninn 9y ago
What a pristine example of next level stockholms syndrom! With that attitude it might benefit you more than anything. Theres nothing that gets me to not hire someone than the person saying “Im a {language} developer”
- QML 9y ago
  Fine, I also love Python :P
- StavrosK 9y ago
  Might be the opposite, for example there are some languages I consider a waste of time and refuse to learn. Mainly languages too close to my current skillset, as I feel there are other languages that can teach me more with the same effort, or languages I consider downright badly-designed.

deleted 9y ago

[deleted]

roflchoppa 9y ago

its cool idea, but I like the idea of holding my own keys on my machine/paper opposed to delegating it to an app.

malasayeq 9y ago

The best way to break a couple up is to hire a hacker to do it for you. Hackers can hack their text and whatsapp messages which you can always use to your advantage, dig up dirty secrets from victims' phones, social media accounts, emails etc...and the good thing about it is that they will break up and nobody will suspect you caused the break up. visit: darkwebsolutions. co