Yes, all plugins are 100% open source and you can modify the code. However, we can only cover bug fixing for our parts of the code.

Of course they are. If there's a bug, it's on us:-)

Anything except cash :-) We go with Paypal, credit/debit card, wire transfer.

Nope. The Gantt chart is a standalone plugin. It just requires the Redmine X Assets plugin that comes with it.

Yes, the UX Upgrade plugin contains a theme.

Not any more. The Resource management plugin is a standalone plugin. It just requires the Redmine X Assets plugin that comes with it.

Just contact us at hello@redmine-x.com

Sure, we make custom adjustments for €59 / hour.

All customers will get updates 12 months from the purchase for FREE (or within the price). If you wish to get updates all the time, you will be subscribed to our perpetual license at 25% of the full price of the plugin. If you don't want any updates, you can choose to cancel the subscription, but once you decide to upgrade your Redmine, you will have to pay the full price again. Please read the license FAQ for more info.