Cut off all vernacularsGenerally, app developers or app development companies go to the level of a casual user when marketing their apps.
After all, Bill Gates once said you don't understand the term if you can't break it down into simpler terms.Therefore, you always need to cut down your jargon to make your sentences simple.
So the 20 per cent commitment should be decided.
You need to follow the right protocol to attract people while listing what your application can do.First of all, you have to prove to them that you understand their difficulty before people decide to listen or to buy your products.
This is why you have to show your credentials, your qualifications, and your awards (if any) that you are an authority in the area.
Many people "doubted Thomas" obviously.