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Interrater reliability for all variables.
| Variable | Cohen kappa coefficient |
| App platform | .67 |
| Language | .77 |
| Price | .83 |
| Privacy policy | .71 |
| Registration requirements | 1 |
| The classifications of the contents and functionalities | .65 |
| Recommended users | .86 |
| Description of reference | .81 |
| Developers | .81 |
| Description for certification of medical app | 1 |
