Security
Documents and all the files are simply stored on your disk and they work on top of your local folder.
Let's start with the key differentiatiors between Stacks Pro and Trello
Documents and all the files are simply stored on your disk and they work on top of your local folder.
Pay once and use it forever how you want and where you want.
Import any Trello Board easily into Stacks and you're free and continue where you left off.
Let's see all the differentiators and why to choose Stacks Pro
| Stacks Pro | Trello | |
|---|---|---|
| Overview | ||
| Use case | Designed for individuals looking to have a secure solution. Collaboration features available on Enterprise Edition. | Designed for teams that need to track multiple projects and visualize work in a variety of ways. | 
| Store Data | On your local folder or on the cloud service of your choice | Only Online on Trello servers | 
| Pricing | $49 one time purchase | Standard: $60/year Premium: $120/year | 
| Task management | ||
| Assign due dates | Assign both start dates and due dates to tasks. | Assign only due dates to tasks. | 
| Time Tracking | Track time or add time spent on each task | Not available | 
| Views |  Board  List  Table  Calendar  World/Map  Archives  Dashboard  Timeline (in the works) |  Board List  Table  Calendar  World/Map  Archives (via Power-Ups)  Dashboard (limited)  Timeline | 
| Custom statuses | Yes | No | 
| Time tracking | Yes | No (via Power-Ups) | 
| Time estimation | Yes | No (via Power-Ups) | 
| Progress | Yes | No (via Power-Ups) | 
| Recurrent tasks | Yes | No | 
| Other features | ||
| Collaboration | Available just on Enterprise edition | Yes | 
| Mobile Apps | In the works | Yes | 
| Notepad | Yes | No | 
| People list | Yes | No |