Best for
Best for Etsy sellers who plan listings around keyword seasonality and want their listings graded.
E-commerce Seller Tools Comparison
Marmalead vs. What Sells Next
At a glance
At a glance
Best for
Best for Etsy sellers who make their own products and want to test an idea against the market before making it.
- Freelancers
Cataleo does not name a winner. Both statements come from the vendors themselves.
Full Comparison
| Criterion | Marmalead | What Sells Next |
|---|---|---|
| Starting price | $19 / month $53 paid quarterly, $190 paid annually, or $300 once for a lifetime plan. | Free Premium is £12 per month, tax included, cancel anytime. |
| Free trial | Not stated | No trial; an ongoing free plan instead |
| Hosting | Cloud: a web app | Cloud: a web app and a Chrome extension |
| Made in | Not stated | United Kingdom |
| Product research | Trending topics from social media and popular Etsy searches, plus bargain, mid-range and premium price ranges showing how the market prices a product | Product discovery, Opportunity Radar and the Crossover Lab, which combines a product with a theme. Idea checks show comparable Etsy listings, asking prices and buyer signals, with an idea board and build guides for planning the make. |
| Marketplace keyword research | Storm keyword suggestions, similar searches, search volume, engagement and competition per keyword, 12 months of seasonality, a 3-month forecast and side-by-side comparison | Keyword research and Keyword Smash |
| Listing optimisation | Letter grades for shops and listings built from SEO factors and sales factors, AI description critique, AI-generated FAQs and AI authoring | Listing audit, AI listing drafts with editable titles, descriptions and 13 tags, AI copy reviews of connected listings, saved listing drafts, concept visuals and listing videos from product photos |
| Competitor tracking | Not stated | Competition watch with estimated sales and revenue, search visibility for connected shops, and a weekly market briefing |
| Fee and profit calculation | Not stated | Fee and profit calculator |
| Marketplaces covered | Etsy | Etsy |
| Integrations and API | Etsy shop connection through Etsy's own channel, with several shops per account | An optional read-only Etsy shop connection, with changes copied into Etsy by hand, and a Chrome extension |
| AI features | Yes | Yes |
| Deployment | Cloud (SaaS), Browser-based | Cloud (SaaS), Browser-based |
| Support | Email helpdesk | Not stated |
| Company size | Not stated | Freelancers |
| Integrations | Etsy | more entries Etsy, Chrome extension |
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Row where the values differ The small markers point at the lower number, the longer list or the stated feature. They describe the data, they are not a verdict.
The short version
Key Differences
- Starting price Marmalead $19 / month What Sells Next Free
- Hosting Marmalead Cloud: a web app What Sells Next Cloud: a web app and a Chrome extension
- Product research Marmalead Trending topics from social media and popular Etsy searches, plus bargain, mid-range and premium price ranges showing how the market prices a product What Sells Next Product discovery, Opportunity Radar and the Crossover Lab, which combines a product with a theme. Idea checks show comparable Etsy listings, asking prices and buyer signals, with an idea board and build guides for planning the make.
- Marketplace keyword research Marmalead Storm keyword suggestions, similar searches, search volume, engagement and competition per keyword, 12 months of seasonality, a 3-month forecast and side-by-side comparison What Sells Next Keyword research and Keyword Smash
- Listing optimisation Marmalead Letter grades for shops and listings built from SEO factors and sales factors, AI description critique, AI-generated FAQs and AI authoring What Sells Next Listing audit, AI listing drafts with editable titles, descriptions and 13 tags, AI copy reviews of connected listings, saved listing drafts, concept visuals and listing videos from product photos
Every line is one datapoint from the table above, picked automatically. Nothing here is written text.
The trade-offs
Strengths and Limitations
Marmalead
Strengths
- Keyword data includes 12 months of seasonality and a 3-month forecast
- Lifetime plan for a single payment of $300
- Several Etsy shops can be connected to one account
- Course library included with the subscription
Limitations
- No free plan or trial named on the pricing page
- The site names no competitor tracking
- Etsy is the only marketplace named
- Payments for the current billing period are not refunded on cancellation
What Sells Next
Strengths
- Free plan with daily keyword lookups and idea checks, no card needed
- Idea checks show comparable Etsy listings, asking prices and buyer signals
- Fee and profit calculator and build guides sit next to the research
- The Etsy shop connection is optional and read-only
Limitations
- The site names Etsy as the only marketplace
- Listing changes have to be copied into Etsy by hand
- Competitor sales and revenue are estimates
- The site does not state the company or country behind the tool
Plans
Pricing
Marmalead
- Entrepreneur $19 / month Paid monthly. Also $53 paid quarterly or $190 paid annually.
- Lifetime $300 once A single payment instead of a subscription.
What Sells Next
- Free £0 5 keyword lookups per day, 3 starter crossovers and 5 idea checks per rolling 24 hours. No card needed.
- Premium £12 Per month, tax included, cancel anytime. Introductory offer: the first month is £5.
What users say
Review Scores · opens after launch
Marmalead
- Ease of use
- Not rated yet
- User interface
- Not rated yet
- Onboarding
- Not rated yet
- Support and service
- Not rated yet
- Value for money
- Not rated yet
- Features
- Not rated yet
No reviews yet. Nothing has been published here yet, and no score is shown. How a review is checked before it appears is described below.
What Sells Next
- Ease of use
- Not rated yet
- User interface
- Not rated yet
- Onboarding
- Not rated yet
- Support and service
- Not rated yet
- Value for money
- Not rated yet
- Features
- Not rated yet
No reviews yet. Nothing has been published here yet, and no score is shown. How a review is checked before it appears is described below.
How we check reviews
Before sending, the author has to confirm three things: that they have used the product themselves, that they work neither for the vendor nor for a competitor, and that nobody is paying them for the review. We also ask whether the vendor invited them to write it. That answer is required, either answer is accepted, and it stays with the review.
Every review is read by a person before it appears. An email address is required and is confirmed: we send a link to it, and a review does not reach us until the author opens that link, so a review has a sender who was reachable at least once rather than being anonymous. Where what somebody writes needs backing, we ask them for evidence that they used the product, and a review that does not get it is not published. We publish positive and negative reviews alike, we pay nothing and offer nothing for a review, and we accept none that was bought or incentivised.
What we cannot do is verify a purchase. There is no shop here and no account, so whether the author really used the tool rests on their own declaration, on whatever we ask them for, and on the plausibility of what they write. We say so rather than implying a check that does not exist.
A vendor cannot buy a review, and cannot have one removed or changed because they dislike it. We remove or edit a review only if it breaks our rules or the law, for example a false statement of fact. Paid placement has no effect on which reviews appear or on any score.
Where this comes from
Where this comes from
Marmalead https://marmalead.com/ · checked against the official source on 2026-11-10
What Sells Next https://whatsellsnext.com/ · checked against the official source on 2026-11-10
This table lists factual criteria taken from information the vendors publish themselves. For how we put it together, see the methodology.