Breathing App like the new one by Garmin but....

is it possible to create a breathing App like the new one of Garmin?

the problem, with the Garmin one, you can use only the 4 different Breathing techniques by Garmin, instead i want to use a App on my Tablet like "Prana Breath", it's more comfortable and only record my breathing activity with following fields in it:

-Breath frequency

- Stress

- Heartbeat

in the Lap Area Garmin displays:

-Duration

- avg Breath frequency

- minimal Breath frequency

- maximal Breath frequency

- Stress change

- Stresslevel at beginning

- Stresslevel at end

- avg heartbeat

- max heartbet