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User satisfaction of the mobile app.
| User satisfaction item | Scorea, median (IQR) |
| I was bored | 2.00 (2.00) |
| I was impressed | 2.00 (2.00) |
| I felt frustrated | 1.00 (1.00) |
| I found it tiring | 1.00 (1.00) |
| I was irritated | 1.00 (1.00) |
| I felt skillful | 2.00 (2.00) |
| I was satisfied | 3.00 (3.00) |
| I felt challenged | 1.00 (1.00) |
| I had to put a lot of effort into playing | 1.00 (1.00) |
| I felt good | 3.00 (3.00) |
aScores range from 1 (not at all) to 3 (extremely).
