This is a very innovative idea. I am an Android user though but would definitely be interested in using this service. Does it work for any currency? If not then I would like to suggest that you intergrate it with all major currencies. I'm from the UK so use GBP. Obviously Euro and USD too.
Sorry if this matter has already been covered. I will read up more on it when my Android tablet is charged up, I probably wont be using it until tomorrow now as it is late at night.
I will be back tomorrow at some point to give you my feedback.
Good luck with this unique and very useful project. We need something like this. I would use this for sure when I do happen to ave a few extra pennies.
Right now we're constrained to supporting only major US banks and $ (about 8 right now) due to our 3rd party API provider, Plaid (plaid.com) who we use for the transaction data stream to track your spare change. We're working on expanding out to support as many banks as we can in the near future (including international banks, small credit unions, etc.), and Coinbase already supports many countries around the world, so Lawnmower should be able to support multiple new countries and currencies soon!
We do also have an Android app if you didn't catch the link -
https://play.google.com/store/apps/details?id=io.lawnmower.mobile