Quote from: nagleatorcoin on Today at 05:38:07 PM

Thanks ETFbitcoin, would I be correct in saying if I was to develop a branded clone of Copay that I would also have to make that open source?

The details are usually in the license...

The MIT license is described as:

Quote

A short and simple permissive license with conditions only requiring preservation of copyright and license notices. Licensed works, modifications, and larger works may be distributed under different terms and without source code.

So, it seems you can basically do whatever you like and don't have to provide source-code... providing you adhere to the license conditions... which for CoPay are:

Quote from: https://github.com/bitpay/copay/blob/master/LICENSE

...
Copyright (c) 2014-2016 BitPay, Inc.

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
...