CryptoHolder is a simple, free, and 100% client-side service which lets enthusiasts choose from more than 700 cryptocurrencies to create a customizable "wallet" of prices, following their prices is realtime.

No account is needed. All the data is saved locally at your browser and you can delete/add new coins at any given time!


Questions


Where the prices come from?
They come from API services from exchanges like Poloniex and projects like CoinMarketCap.

How often does the prices get updated?
The prices get updated in CryptoHolder API every 60 seconds. On the client the update is done every 1-2 minutes, but users can force an "update" in prices by refreshing the application.

Can I see the price in other currencies instead of USD?
At the moment, no. This would require access to multiple exchanges across the world in order to display correct prices for each cryptocurrency in each country, a huge overhead for development at the moment.

Why not an native app?
The decision to make CryptoHolder an PWA (Progressive Web App) was to keep it dynamic and fast, both for enthusiasts and casual users. Casual users can access the application via URL anytime they want without installing anything to their devices, while enthusiasts can choose to install it on desktop as a "native app" by choosing this option in their mobile browser (both Android and iOS have this option in their browsers).

Is CryptoHolder free?
Yes! The idea behind this project is to give an elegant and fast way for cryptocurrency enthusiasts to follow their currencies prices. The project, with the features it has right now, is and always will be free.

Why some currencies have colors and others don't?
The currencies identified by color and logo watermarks are considered "1st class citizens" in the application. There is virtually no diference from them and other currencies other than visual enhancement. The coins that receive this design feature are the ones who hold the top positions at trading volume and market cap. Other coins may be added to this "colorful list" eventually.

http://i.imgur.com/okxnI4b.jpg

Feel free to send any questions!  

https://cryptoholder.com/