Per @kathy-phet's request in https://github.com/phetsims/QA/issues/295 I am making issues in each published sim repo detailing the pointer areas and usability of sims on phone sized screens. Done on an iPhone 7 iOS 12 device.
Potential Difficulties Noticed:
Arrows at ends of sliders could have larger pointer areas
@jonathanolson asymmetric dilation of NumberControl tweakers was added in https://github.com/phetsims/scenery-phet/issues/489. Here's a mockup of updated touch areas in green, which would apply to all tweakers.
Per @kathy-phet's request in https://github.com/phetsims/QA/issues/295 I am making issues in each published sim repo detailing the pointer areas and usability of sims on phone sized screens. Done on an iPhone 7 iOS 12 device.
Potential Difficulties Noticed:
Screenshots:
![Image from iOS](https://user-images.githubusercontent.com/41024075/56239933-671ac000-604f-11e9-890b-b00d26032568.png)