The dice clicking mode seems like the fact that it's dice doesn't really affect the gameplay that much? And even with the score being randomized, that doesn't really affect what you do. Maybe if the score were based on which side of the die you click (and the dice were in different orientations; they seemed to only be coming up with 6 on top for me) it would be more interesting? It was still enjoyable though.
The other mode as far as I can tell seems like pure luck… is there anything else to it? Also clicking on the add strength button a second time seems to roll the die immediately, so it doesn't actually seem to be possible to roll with more strength.