Um... I just read a feature that moodtracker.com created May 12, 2018. It was announced in the forum.
The post says "You can now have true text message reminders. When you purchase our MoodTracker Complete subscription you can have text message reminders that you can reply to in order to record your daily measurements."
I have the complete subscription plan. I never have used this feature. I can "record measurements" while I lay in bed.
I don't have to look at a tiny phone screen either. I created a reminder and chose text message instead of email. Depending on Measurement I chose, I went to the 6th option - "Record Measurement". Now whenever I get a text message, I can enter a value and that is recorded in my chart. When I want to, I can look on the desktop computer to see my chart and any other things that I have been recording on moodtracker.com. This is awesome.