'Niche finder' is the marketing label for software that surfaces product categories with high demand and low competition. Helium 10's Black Box and Jungle Scout's Opportunity Finder are the two leaders. The right pick depends on whether you want a dashboard UI or programmatic data you can score with your own formula.
Top Pick
Scavio gives builders the raw data Black Box and Opportunity Finder run on, exposed as a typed API. Best fit for sellers who already have a scoring formula or want to A/B test their own criteria.
Full Ranking
#1Our Pick
Scavio
Sellers writing custom niche-scoring logic
Pros
- Typed JSON API
- Custom scoring
- 12 marketplaces
- Cents per query
Cons
- No prebuilt niche-finder UI
#2
Helium 10 Black Box
Built-in dashboard with filters
Pros
- Filter UI
- Saved searches
Cons
- Locked to Platinum
#3
Jungle Scout Opportunity Finder
Quick opportunity scoring
Pros
- Opportunity score
- Suite tier price
Cons
- Limited custom filters
#4
ZonGuru Niche Finder
Cheaper niche-discovery dashboard
Pros
- Niche Finder UX
Cons
- Smaller community
#5
AMZScout Pro
Affordable Chrome extension users
Pros
- Decent product DB
Cons
- Smaller dataset
Side-by-Side Comparison
| Criteria | Scavio | Runner-up | 3rd Place |
|---|---|---|---|
| Entry price | $30/mo | $49/mo | $99/mo |
| Custom scoring formula | Yes | No | No |
| API access | Yes | No | No |
| 12 marketplaces | Yes | Yes | Yes |
| Saved niche queries | BYO storage | Yes (DB) | Yes |
| Best for | Custom scoring | Niche dashboard UX | Filter UI |
Why Scavio Wins
- Niche scoring is opinionated work. Every seller has their own formula: weight sales rank highly for a high-velocity seller, weight reviews for a brand-builder, weight price for an arbitrage flipper. Black Box and Opportunity Finder bake one formula into a UI. Scavio exposes the inputs and lets you write your own.
- Custom-scored niches are repeatable. Once a seller has a 50-line scoring function, they can rerun it weekly across the same categories and watch which niches move. No dashboard provides that kind of repeatability without a paid annual plan and a manual exports flow.
- Custom filters beyond the prebuilt UI matter for niche hunters going beyond the obvious categories. A seller looking for 'low review count + high rating + sub-$25 price + outside saturated categories' writes that as a filter chain in Python. Black Box's UI cannot stack filters that arbitrarily.
- 12-marketplace coverage in one credit pool means a niche-finder script can run the same logic across Amazon US, UK, DE, JP, and seven others without per-marketplace upcharge. International niche discovery becomes a one-line code change instead of a separate subscription.
- Cents per query at the fast tier means a daily 200-niche scan costs about $18 per month — cheaper than every dashboard alternative and with full custom-formula control.