There are many alternatives to Trello for iPad if you are looking for a replacement. The best iPad alternative is Zenkit, which is free. If that doesn't suit you, our users have ranked more than 100 alternatives to Trello and loads of them are available for iPad so hopefully you can find a suitable replacement. Other interesting iPad alternatives to Trello are Asana (Freemium), Notion (Freemium), Quire (Freemium) and WorkFlowy (Freemium).
Task management for small-group organizations. Good alternative to Trello if you have a lot of tasks. Best for small teams, like clubs or volunteer executive boards. Made to help with task delegation and planning. Open source and available on GitHub under a BSD license.
Kezmo is an enterprise chat & team management tool for companies looking for a collaboration solution that provides an agile chat experience in a secured environment they can control and customize. It's available in the cloud, but it can also be installed on premises.