eRank is the most accessible Etsy SEO tool available. The free tier is genuinely useful, not crippled as a sales tactic. You get 200 keyword lookups per day, listing audits, and access to the Trend Buzz board, which is enough for a seller with 20-30 listings to run a real optimization workflow without spending anything. The Basic plan at $5.99/month removes the daily caps and adds deeper competitor analytics.
The practical comparison to Marmalead comes down to what you need. eRank is better for sellers who are still learning keyword research, because the interface walks you through what the numbers mean and the free tier lets you experiment without commitment. Marmalead is better for sellers who already know what they're doing and want the deepest trend data and the most flexible keyword comparison tooling. Many serious Etsy sellers run both: eRank for daily monitoring and free keyword checks, Marmalead for deeper research sessions.