These 3 apps lead WordPress Plugin Directory's Serial key category as of September 2026 — ranked by user rating, review count, and audit score, refreshed every 24 hours from the canonical WordPress marketplace listing.
Discover the top-rated serial key apps available on WordPress Plugin Directory. Rankings based on user ratings, review count, and market performance.
This is the curated shortlist — the top-ranked serial key apps. To browse every serial key app on WordPress Plugin Directory, see the full Serial key category.
This list ranks the top 3 WordPress apps classified under Serial key by the source marketplace's own taxonomy — apps appear here only because WordPress Plugin Directory itself tags them in this category, not because of any AppRanks editorial decision. Within the category set, ranking uses a Bayesian-ish blend of average rating × natural log of review count: the formula is rating × ln(reviewCount + 1), so a high-rating-low-review app doesn't leapfrog an established listing on a single 5-star outlier. The blend favors apps that are both well-reviewed AND have an established user base.
AppRanks does not invent a proprietary score for public surfaces — the rank shown mirrors the marketplace's published category position exactly, scraped on a 12-24 hour refresh cycle from the canonical WordPress Plugin Directory listing. The category lookup happens at request time and the page is cached at the edge for 1 hour to absorb traffic spikes; the underlying ranking data refreshes daily so the list stays accurate within one day of any source change. AppRanks does not editorially promote or demote apps based on advertiser or partnership status — the same blend formula applies uniformly across every app on this platform.
License Manager for WooCommerce
Ranks #1 in the WordPress Plugin Directory serial key category as a highly rated listing. Currently has a growing review traction (147 reviews, 4.6★ avg). Position holds for the trailing 30-day window.
Pick if: Pick this if you prioritize merchant satisfaction over scale — License Manager for WooCommerce holds a 4.6-star average across 147 reviews in the serial key category.
Same data as the ranked cards, condensed into a sortable-by-eye grid: rating × review depth × pricing tier across the top 3 serial key apps on WordPress Plugin Directory.
| # | App | Rating | Reviews | Pricing |
|---|---|---|---|---|
| 1 | License Manager for WooCommerce | 4.6★ | 147 | — |
| 2 | Serial Numbers – Ultimate License Manager for Selling, Licensing & Securely Delivering Digital Content with WooCommerce | 4.7★ | 78 | — |
| 3 | Digital License Manager | 4.7★ | 30 | — |
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Ranks #2 in the WordPress Plugin Directory serial key category as a highly rated listing. An early-stage review volume (78 reviews) with a 4.7-star average. Position holds for the trailing 30-day window.
Pick if: Pick this if you prioritize merchant satisfaction over scale — Serial Numbers – Ultimate License Manager for Selling, Licensing & Securely Delivering Digital Content with WooCommerce holds a 4.7-star average across 78 reviews in the serial key category.
Ranks #3 in the WordPress Plugin Directory serial key category as a highly rated listing. Tracks at 4.7★ across 30 reviews — early-stage review volume. Position holds for the trailing 30-day window.
Pick if: Pick this if you prioritize merchant satisfaction over scale — Digital License Manager holds a 4.7-star average across 30 reviews in the serial key category.
Methodology details: /glossary/audit-score · /about.