WipQ - Kanban Cards

Simple and intuitive, lean and agile, project management for solo professionals and small teams. All stored locally in iOS or iCloud Drive (doesn't use a third party paid service) for privacy and security and interoperable with WipQ for macOS.
Features
• Kanban board style interface with customisable Work In Progress (WIP) limits.
• Supports card locking, favourites, priorities, categories, file attachments and various card display themes.
• Customisable queues and folders for organising your work and workflow.
• Custom properties mean you can extend cards to include any custom data you need for your projects.
• Saves project data locally—no network or third party login required.
• Supports Personal Kanban.
• Supports all modern iOS interfaces, including document model, drag/drop, copy/paste, undo/redo etc.
• Great replacement for Trello.