In the future, we hope to make our calibration process more accurate. Currently, it does a decent job at getting you to the right posture, but we want it to be able to sense smaller changes in position.
We would also love to elevate our app to a wearable (because who wants to wear a phone on their back all the time anyways?). The wearable will clip directly onto your clothes, but we also plan to sell a chest strap that can be worn under your clothes. For peak performance, the LeanLeft wearable should be clipped onto an article of clothing that sits snugly against your upper back (ex. a bra). It could also be clipped onto the back of a collar, or worn on a necklace.