I see the app uses much sliders for measurement items and symptom severity.
While sliders look nice, I personally prefer a row of nice buttons with numbers in it. Simply because it works quicker. The quicker all things work, the better I’m willing to track everything and the more I benefit from the app.
Suggestions:
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a row of colored (color orresponding with the severity) buttons with the number in it.
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Both. Slider and buttons.
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Let the user choose / configure what they prefer.
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Make the slider ‘clickable’. Now one needs to slide from the left to right. If I want to set it to 6 it is more comfortable to click halfway and slide it a little to left or right until I have the 6 I want.
Regards David