Ultimate Sticky Add to Cart supports these currency conversion apps:

* Auto Multi Currency - by Conversion Bear (it's free)

Default Shopify currency converter

* Coin Currency Converter by Shoppad

* BEST Currency Converter by Grizzly Apps

* Auto Currency Switcher by MLveda

* Bold Multi-Currency by Bold

Using a different currency conversion app?
let us know. 

We would be happy to add it!

In case you're rounding the calculated prices using a currency convertor app add the following snippet to your theme.liquid file inside a <script> tag:

window.cbRoundPriceTo = 0.99;

You can change the number according to your desired round to target number.