1.7.5
2017-01-30
This app has been updated by Apple to display the Apple Watch app icon.
Small fixes
1.7.4
2016-12-08
Small improvements
1.7.3
2016-11-01
Small improvements
1.7.2
2016-10-25
All new experiment and images comparing the effect of seeing smiling faces and landscapes!
1.7.1
2016-10-19
All new experiment and images comparing the effect of seeing smiling faces and landscapes!
1.7
2016-10-18
All new experiment and images comparing the effect of seeing smiling faces and landscapes!
1.6
2016-10-05
All new experiment and images comparing the effect of seeing smiling faces and landscapes!
1.5
2016-10-04
All new experiment and images comparing the effect of seeing smiling faces and landscapes!
1.4
2015-10-08
All new faces based on user feedback!
1.3
2014-01-16
Bug fixes and performance improvements.
1.2
2013-12-12
Performance improvements and bug fixes.
1.1
2013-12-04
Performance improvements. This version also addresses issues where some users were not receiving notifications at the right times.