No usable source links are available for this idea. Its signal notes and scores need independent verification.
A 55-year-old Solo Entrepreneur running a Cafe or Restaurant after retirement spends 200,000–500,000 KRW ($150–$375) monthly on marketing — Baemin Ultra Call (88,000 KRW/$66 per month), Instagram ads (100,000–300,000 KRW/$75–$225 per month), blog review campaigns (30,000–50,000 KRW/$22–$37 each), and flyers (150,000 KRW/$112 per 10,000 copies) — but has no way to measure which channel actually drives sales. Marketing budgets are allocated by gut feeling, and money likely keeps flowing to ineffective channels.
Users input monthly spend per marketing channel along with corresponding revenue changes. The tool visualizes estimated contribution and cost-efficiency per channel. It provides A/B test guides simulating questions like 'How much would revenue drop if I cancel Baemin Ultra Call this month?' and compares results against anonymous benchmark data from similar businesses in the same industry and area.
| N Novelty | 1-5 | How uncommon the service is in market context. |
| U Urgency | 1-5 | How urgently users need this problem solved now. |
| M Market | 1-5 | Market size and growth potential from proxy indicators. |
| R Realizability | 1-5 | Buildability for a small team with realistic constraints. |
| V Validation | 1-5 | Validation signal quality from competition and demand data. |
| Tech Complexity | / 40 | Difficulty of core implementation stack. |
| Data Availability | / 25 | Practical availability and cost of required data. |
| MVP Timeline | / 20 | Expected time to ship a usable MVP. |
| API Bonus | / 15 | Bonus for viable public API leverage. |
| Competition | / 20 | Signal quality from competitor landscape. |
| Market Demand | / 20 | Demand proxies from search and mention patterns. |
| Timing | / 20 | Fit with current shifts in tech, behavior, and regulation. |
| Revenue Signals | / 15 | Reference evidence for monetization viability. |
| Pick-Axe Fit | / 15 | How well the concept serves participants in a trend. |
| Solo Buildability | / 10 | Practicality for lean-team implementation. |