Last verified: 2026-10-29 · Author: Alexander Vance · Human review
Affiliate disclosure: We may earn a commission if you buy Helium 10 through our links, at no extra cost to you. Helium 10 UI notes and screenshots come from our logged-in Helium 10 members account (English UI, Cerebro / Plans captures 2026-10-29). New-customer checkout figures for AIPILOTDAILY20 / AIPILOTDAILY10 come from our 2026-10-28 tests via https://i.helium10.com/jR0Z10 (no payment completed). We do not invent MerchantWords dollar prices, plan names, or search allowances—confirm those on MerchantWords’ own pricing / checkout page. Always trust your order summary before paying.
Quick verdict
Helium 10 vs MerchantWords in 2026? Pick Helium 10 (Cerebro reverse-ASIN + Magnet seed research, then Keyword Tracker, Listing Builder and Index Checker) when keywords are one step in a private-label workflow you run every week: harvest competitor terms, build a listing, track rank, feed PPC. Pick a MerchantWords-class keyword search volume tool (a keyword-only stack) when you mainly need a fast phrase / volume bank or a second opinion on demand, you already have sales history, and you will not open product research, tracking or listing tools in a suite. Do not pay for both by default—one primary keyword source for 90 days beats two half-used banks.
| Keyword job | Lean Helium 10 (Cerebro / Magnet) | Lean MerchantWords-class (keyword-only) |
|---|---|---|
| Reverse-ASIN harvest from live competitors | Yes—Cerebro is built for it | Confirm what your plan offers—we do not claim parity |
| Seed-keyword expansion / phrase bank | Yes—Magnet (shares Platinum’s Cerebro-plus-Magnet cap) | Yes—core use case for volume banks |
| Hand-off to listing, indexing, rank tracking | Strong (Listing Builder, Index Checker, Keyword Tracker) | Export and rebuild elsewhere |
| Product research in the same login (Black Box / Xray) | Yes | Not the job of a keyword-only tool |
| Smallest bill for keywords only | Weak thesis—a suite bill for one module | Often yes—confirm MerchantWords $ yourself |
| Price we can show today | Platinum $129 / Diamond $359 monthly list; promo dues below | Not published here—open their checkout |
One-line decision: If Cerebro’s keywords flow into a listing, a tracker and a PPC campaign this month, Helium 10 wins on workflow. If you only want a search-volume glance and nothing downstream lives in the suite, a MerchantWords-class keyword-only stack is the honest, smaller bill.
Keyword hub: Best Amazon keyword research tools. Sister head-to-head: Helium 10 vs Jungle Scout for keywords. Suite frame: Helium 10 vs Jungle Scout 2026. Job chart: Amazon seller software comparison chart.
Pick your Helium 10 plan, then enter your AI Pilot Daily code.
Confirm eligibility, duration, renewal terms and the final amount on your checkout. Existing subscriptions usually cannot apply these codes.
What sellers are arguing about (keyword tools, 2026)
Seller threads on Helium 10 vs MerchantWords are rarely about which database is “bigger.” They come down to four objections:
- “I only open Cerebro—why pay for a whole suite?” The most common complaint. If Cerebro is the only module you open, a keyword-only stack can be the honest choice. We say so below.
- Platinum’s 100-use cap: Helium 10’s help center documents up to 100 Cerebro (Plus Magnet) uses per billing month on Platinum, with 1 ASIN = 1 use. Multi-ASIN pulls burn the cap faster than “100 searches” sounds. Details: Cerebro search limit.
- Search volume is an estimate on every tool. No third-party tool sees Amazon’s raw query logs. Treat volume as a ranking signal for prioritising terms, not as a sales forecast.
- Downstream hand-off. A keyword bank is only useful if it becomes a listing, an index check, a tracked rank and a PPC campaign. That is where suites and keyword-only tools really differ.
Helium 10 Cerebro + Magnet: what we captured (English UI)
Cerebro is Helium 10’s reverse-ASIN keyword tool. Enter one or more competitor ASINs and it returns the keywords they rank or advertise for, with search volume, competing products and ranking columns you can filter and export. Magnet is the seed-keyword side: enter a phrase and expand it into related terms with volume. On Platinum, both draw from the same Cerebro (Plus Magnet) allowance.
Platinum’s 100 Cerebro uses: how to spend them well
According to Helium 10’s help center article Cerebro (Plus Magnet): Platinum Plan Update: Important Entitlement Changes (updated April 2026):
- Platinum: up to 100 Cerebro (Plus Magnet) uses per billing month (billing month, not calendar month). Unused uses do not roll over.
- 1 ASIN = 1 use, so a 10-ASIN multi search costs 10 uses.
- Re-running a search from History does not use another credit.
- Hitting the cap freezes Cerebro (Plus Magnet) until the next billing cycle.
A realistic Platinum month for one launch: run 3–4 core competitor ASINs in Cerebro (about 4 uses), use Magnet on 5–10 seed phrases to fill gaps (about 10 uses), go back to History instead of re-running searches, and export once into Listing Builder and Keyword Tracker. That leaves plenty of headroom for 3–5 product ideas a month. If you keep hitting the cap, Diamond’s higher, plan-dependent allowance is the answer. Check the exact number on your own plan card; we do not invent a cap we have not screenshotted. Walkthroughs: Cerebro for beginners · How to use Magnet · Cerebro export.
MerchantWords-class keyword search volume tools: qualitative only (no invented $)
“MerchantWords-class” here means keyword-first tools whose main product is an Amazon search-term and volume bank: enter a phrase, browse related terms and estimated volume, export. Sellers usually buy them as either a lightweight main tool or a second opinion beside a suite.
Where a keyword-only stack honestly wins:
- You already know your product and competitors, and you only need a fast volume glance on new phrases.
- You are an agency, copywriter or brand team that writes listings but does not hunt for products.
- You want a second-opinion volume source to sanity-check a shortlist before spending PPC money.
- A suite bill for one module feels like a tax, and you will not open Black Box, Xray, Tracker or listing tools.
Honest limits for most private-label launches: a keyword-only bank is usually thinner than Cerebro-style reverse-ASIN harvesting plus the suite hand-off. You still need somewhere to track rank, check indexing and write the listing. If you rebuild that stack from three more tools, the “cheaper” bill may not be cheaper.
Pricing: We do not publish MerchantWords prices, plan names or search allowances. They change, and we have not verified them at checkout for this page. Open MerchantWords’ own pricing page the same day you screenshot Helium 10 dues, and compare the totals on your screen.
Head-to-head: when the Helium 10 suite wins
- You launch or optimise private-label products and need competitor terms (Cerebro), not only seed ideas.
- Keywords feed Listing Builder → Index Checker → Keyword Tracker → PPC in the same login.
- You also validate products in Black Box / Xray, so the suite pays for more than one job.
- Platinum’s 100 uses cover your launch rhythm (above), or you will step up to Diamond.
- Promo dues work for you: AIPILOTDAILY20 (monthly) or AIPILOTDAILY10 (annual / long stays) via https://i.helium10.com/jR0Z10.
Head-to-head: when a keyword-only stack wins
- Cerebro / Magnet would be the only Helium 10 modules you open.
- You need volume checks for copywriting or catalog work, not reverse-ASIN competitive harvesting.
- You already have rank tracking and listing tools you like, and you will not migrate them.
- Your budget only covers keywords this quarter. Revisit a suite when product research starts.
Other keyword-only names sellers mention (SoldScope-class, DataDive, DataRova) are covered qualitatively in the keyword tools hub. Verify their prices yourself.
Helium 10 pricing we can show
| Plan | Monthly list | Annual-pay effective /mo (UI) |
|---|---|---|
| Platinum | $129/mo | $99/mo |
| Diamond | $359/mo | $279/mo |
| Enterprise | $1,499/mo | $1,499/mo |
Promo dues (new-customer tests via https://i.helium10.com/jR0Z10, 2026-10-28, no payment): AIPILOTDAILY20 = 20% off × 6 months, Diamond monthly due $287.20. AIPILOTDAILY10 = ~10% ongoing, Diamond monthly $323.10, annual ~$3,013.20. Cost notes: Helium 10 cost · coupon code. Existing subscriptions usually cannot apply these codes.
Decision checklist (no fake competitor math)
- List what happens after keyword research: listing, indexing, tracking, PPC. Count how many of those you would do in Helium 10.
- Estimate your monthly Cerebro use: competitor ASINs × product ideas + Magnet seeds. Compare that with Platinum’s 100 uses.
- Screenshot the Helium 10 amount due with AIPILOTDAILY20 or AIPILOTDAILY10 via https://i.helium10.com/jR0Z10.
- Screenshot MerchantWords’ checkout the same day. Do not paste prices from blogs (including this one).
- Run the same 3 seed phrases in both tools and compare the useful long-tail terms, not just the size of the database.
- Keep one tool after 30 days of usage logs. Refund notes: Helium 10 money-back guarantee.
Frequently asked questions
Is Helium 10 better than MerchantWords?
For private-label sellers who need reverse-ASIN keywords that flow into listings, tracking and PPC, usually yes, because Cerebro plus the suite hand-off covers more of the workflow. For a light volume bank or a second opinion with nothing else in a suite, a MerchantWords-class keyword-only tool can be the better fit and the smaller bill.
What is the difference between Cerebro and Magnet?
Cerebro is reverse-ASIN research (competitor ASIN → keywords). Magnet is seed-keyword research (phrase → related keywords). On Platinum both share the 100 uses per billing month cap.
How many Cerebro searches do you get on Platinum?
Per Helium 10’s help center (updated April 2026): up to 100 Cerebro (Plus Magnet) uses per billing month, 1 ASIN = 1 use, History re-runs are free, and unused uses do not roll over. See Cerebro search limit.
How much does MerchantWords cost?
We do not publish MerchantWords prices. Check MerchantWords’ own pricing page on the day you decide, and compare it with your Helium 10 checkout total.
Are keyword search volumes accurate?
Every third-party tool estimates volume. Use it to rank terms against each other, and confirm with Search Term Report data from real PPC traffic once you are live.
Can I use MerchantWords and Helium 10 together?
You can, as a second opinion, but most lean sellers should pick one primary keyword source for 90 days. Two banks without a written process usually means double billing and no clearer listing.
Which Helium 10 code should I use?
AIPILOTDAILY20 for monthly (Diamond test due $287.20); AIPILOTDAILY10 for annual or long stays (~10% ongoing). Start at https://i.helium10.com/jR0Z10.
Bottom line
- Helium 10 wins when keywords are one step in a weekly private-label workflow (Cerebro → listing → tracker → PPC) and Platinum’s 100 uses, or Diamond, fit your launch rhythm.
- A MerchantWords-class keyword-only stack wins when you just need a volume bank or a second opinion and nothing else would live in a suite.
- Never decide on made-up competitor prices. Screenshot both checkouts the same day.
Next steps: keyword hub → vs Jungle Scout for keywords → vs Jungle Scout 2026 → vs Jungle Scout for PPC → comparison chart → product hub · PPC hub · FBA hub · beginners → worth it → review → coupon → checkout https://i.helium10.com/jR0Z10.
Last verified: 2026-10-29 · Author: Alexander Vance
