demo vs. full
| demo | full | |
| practice keys | demo key | all keys |
| practice time limitation | 1 min | unlimited |
| full courses | no | yes |
| importing custom texts | no | yes |
| support for multiple users | no | yes |
| number of texts to type | 2 | over 10 |
| expire date | 30 days | none |
| other limitations | 60 practices | none |
