Identify 130 species of macroalgae from the Pacific Northwest with illustrated, jargon-free questions. Features over 300 photos, taxonomic details, and descriptions. Content is updated frequently and available offline.






250+ iOS apps & games curated and reviewed
Seaweed Sorter is the household name in seaweed sorter, but it's far from the only option. We track 250+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | $3.99 | 5.0★ (7) | No | No | Sep 2026 | ||
| 2 | Free | 5.0★ (1) | No | No | Aug 2026 | ||
| 3 | Free | — | No | No | Jul 2026 | ||
| 4 | Free | — | No | No | Aug 2026 | ||
| 5 | Free | 4.7★ (30K) | Yes | Yes | Sep 2026 | ||
| 6 | Free | — | No | No | Aug 2026 | ||
| 7 | Free | — | No | No | Aug 2026 | ||
| 8 | Free | — | No | No | May 2026 |






Identify 130 species of macroalgae from the Pacific Northwest with illustrated, jargon-free questions. Features over 300 photos, taxonomic details, and descriptions. Content is updated frequently and available offline.






This toolbox helps identify seaweeds found in the German North Sea. It features an interactive key for species identification and detailed taxon profiles for verification. A glossary is also included to explain scientific terms.




