Best for
Best for Amazon sellers and brands that want research, listings, ads and operations in one subscription, with Walmart and TikTok Shop alongside.
- Small and mid-sized
- Enterprise
E-commerce Seller Tools Comparison
Helium 10 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 | Helium 10 | What Sells Next |
|---|---|---|
| Starting price | From $99 / month, billed yearly Platinum is $129 a month billed monthly. Enterprise starts at $1,499 a month, billed annually. | Free Premium is £12 per month, tax included, cancel anytime. |
| Free trial | A Free plan with limited Chrome Extension access is named in the pricing FAQ; its limits are not listed there | No trial; an ongoing free plan instead |
| API | Helium 10 MCP, included in Diamond for up to 1,000 calls and available as an add-on from $50 a month | Not stated |
| Hosting | Cloud: a web app and a Chrome extension | Cloud: a web app and a Chrome extension |
| Made in | Not stated | United Kingdom |
| Product research | Amazon FBA product research, product scanning on Amazon and Walmart search pages in the Chrome Extension, AI-assisted launch research and Listing Review Insights from customer reviews; for TikTok Shop a Product Finder and Hot Videos | 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 | Keyword discovery by reverse ASIN lookup or seed phrase, keyword rank tracking over time and monthly sales attributed to each keyword; Diamond adds long-term keyword trend analysis for seasonality | Keyword research and Keyword Smash |
| Listing optimisation | AI-enhanced listing builder, an Amazon keyword processor and a listing analyzer for competitor listings, 50 uses a month on Platinum and 150 on Diamond; a converter turns Amazon listings into TikTok Shop listings | 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 | Market Tracker for competitor intelligence, 3 markets on Platinum and 5 on Diamond, plus advanced brand analytics and a Market Tracker 360 add-on from $650 a month | Competition watch with estimated sales and revenue, search visibility for connected shops, and a weekly market briefing |
| Fee and profit calculation | Profit tracker, limited profit reporting on Platinum and profit and loss reporting on Diamond, and a TikTok Shop profitability calculator for Amazon products | Fee and profit calculator |
| Marketplaces covered | Amazon, Walmart and TikTok Shop; the vendor states support for 24+ marketplaces | Etsy |
| Integrations and API | Helium 10 MCP on Diamond for up to 1,000 calls or as an add-on from $50 a month, and Amazon Seller Central connections, 2 accounts on Platinum and 10 on Diamond | An optional read-only Etsy shop connection, with changes copied into Etsy by hand, and a Chrome extension |
| AI features | Yes | Yes |
| MCP-ready | stated Yes | No |
| Deployment | Cloud (SaaS), Browser-based | Cloud (SaaS), Browser-based |
| Support | Email helpdesk | Not stated |
| Onboarding | Live online demos and webinars, Guided onboarding | Not stated |
| Company size | more entries Small and mid-sized, Enterprise | Freelancers |
| Integrations | more entries Amazon Seller Central, Walmart, TikTok Shop, Chrome extension | Etsy, Chrome extension |
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Adds a column to the table, from the tools in this category.
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 Helium 10 From $99 / month, billed yearly What Sells Next Free
- Free trial Helium 10 A Free plan with limited Chrome Extension access is named in the pricing FAQ; its limits are not listed there What Sells Next No trial; an ongoing free plan instead
- Company size Helium 10 Small and mid-sized, Enterprise What Sells Next Freelancers
- MCP-ready Helium 10 Yes What Sells Next No
- Product research Helium 10 Amazon FBA product research, product scanning on Amazon and Walmart search pages in the Chrome Extension, AI-assisted launch research and Listing Review Insights from customer reviews; for TikTok Shop a Product Finder and Hot Videos 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.
Every line is one datapoint from the table above, picked automatically. Nothing here is written text.
The trade-offs
Strengths and Limitations
Helium 10
Strengths
- Chrome Extension covers Amazon, Walmart and TikTok Shop on Platinum and above
- Yearly billing lowers Platinum from $129 to $99 a month
- Diamond includes the Helium 10 MCP for up to 1,000 calls
- Diamond allows up to 5 additional users and 10 Seller Central accounts
Limitations
- Diamond charges a 2% management fee on ad spend run through Helium 10 Ads
- Platinum tracks 20 ASINs and 3 markets in Market Tracker
- Helium 10 Ads and the Helium AI agent are Diamond features
- Enterprise starts at $1,499 a month, billed annually
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
Helium 10
- Platinum $129 / month billed monthly, or $99 / month billed yearly For $0 to $100K in yearly sales. Product and keyword research, basic performance tracking, limited profit reporting, 1 additional user, 2 Seller Central accounts.
- Diamond $359 / month billed monthly, or $279 / month billed yearly For $100K to $10M in yearly sales. Adds the Helium AI agent, the Helium 10 MCP, Helium 10 Ads with a 2% fee on managed spend, inventory management for 500 SKUs (40 on Platinum) and profit and loss reporting; up to 5 additional users.
- Enterprise From $1,499 / month Starting price, billed annually. Custom plan beyond $10M in yearly sales, for 10+ users and 15+ seller accounts, with a dedicated customer success manager.
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
Helium 10
- 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
Helium 10 https://www.helium10.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.