spark plug tool
Worth a lookShows no brand lock-in (top 5 brands take 41% of clicks), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Brand share
Great41%top-5 brand share — no brand owns this niche
Avg price
Great$19.60avg listing price — sweet spot $15–$100
Price range
Great$4.80–$96.03cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
Great37%top-5 click share — an open shelf
Returns
Good2.4%return rate — above 5% kills the launch gate
Review moat
Good1,126.31avg incumbent reviews — the moat a new listing must climb
Conversion
Good4.5%search→purchase rate — share of searches ending in a sale
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Market size
Okay$145K$145K/yr · 163K searches
Growth
Okay+1.2%90-day search growth — must beat 0% to launch