For anyone launching an app in Korea

Check your app idea against the Korean market before you build

Describe your idea in a sentence. You see Korean services already doing it, each with a source link, plus their prices and the permits that may apply.

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What you get

CompetitorsKorean apps, sites and services already doing it. Only ones with a working source link are listed.
VerdictGo, narrow down, or stop, with the evidence behind it.
PermitsKorean registrations and notices that may apply, linked to the official law text.
One-page planWho to start with, what to build first, and the cheapest test before you build.

A real check: AI interview practice app

Real check · Oct 19, 2026 · translated from Korean

4Korean services already doing it

Four services already generate questions for a given company and role and give feedback on your answers. One job-seeker post said that, preparing alone, it's hard to tell whether an answer is any good. So the verdict was to start with a narrower group.

Narrow down2026-10-19

Service	What it does	Price
Saramin AI Mock Interview	Practice mode with 5 questions, and a real mode with follow-up questions	30-day pass (amount not shown)
Jalbwayo	Questions based on each company's hiring values, choice of interviewer personality	From ₩4,900 per session
Haijob	Questions from your cover letter, video practice with an AI interviewer	Free trial (amount not shown)
AI Mock Interview Coach (iOS)	Voice mock interviews with feedback on each answer	Free, ₩6,600/week, ₩14,000/month

Prices are from each service's own page in October 2026. See the full check (Korean)

How it checks

It searches Korean websites, app stores and communities, and lists only services it can link to. Anything it couldn't confirm is marked as needing a check, and estimates are labeled. Permit notes are a starting point, not legal advice.