Ask HN: What's an app/service that doesn't exist that you're ready to pay for?

Neurotransmitters as a Service

Easily monetizatable ideas (as a service).

1- a more stable, faster version of ubuntu/unity with customer support

2- a good linux ide for native remote developement with proper support for debugger and profiling

3 - a cheaper version of vtune with support for arm and powerpc

Helping me to pick my Hearthstone Arena drafts deck

A reliable builder

A portable and highly accurate blood pressure monitor which can take your BP at multiple times throughout the day, similar to existing wearables that measure heart rate etc.

Auto-moderator for HN that would remove annoyingly repetitive questions like this one.

An open-source (and privacy friendly) alternative to Waze

Id pay if someone created and published black lists of Public Sector employees.