It sounds like you're looking for a feature or improvement for on PS Vita (or PSTV).
Would you like step-by-step instructions for setting up PKGj to act as an “NPS for PS Vita” feature? nps psvita
To give you a concrete answer: the most requested missing feature for NPS on PS Vita is from within the Vita’s browser or a homebrew app, without needing a PC. It sounds like you're looking for a feature