Tons of new features have been added to the apps.
In Android 6.7 you can now convert parameter units within the app: if you enter your Alkalinity in ppm, with a single click you can convert it to dKH. This feature is coming to iPhone in 8.7 (available to all beta testers later today).
You can now post items for sale within the website, check out "Market" menu option up top or within the iPhone app.
Tons of new improvements coming to both platforms soon, so stay tuned.