Carbon6 vs Quartile
We give Carbon6 a 2.6 GPA and Quartile a 1.8, out of 4.0. Carbon6 grades higher on the free plan and features. They get the same grade on value for money, ease of use and platforms.
Price, platforms and features side by side. The table says where each price was read and when.
Carbon6
Family of Amazon seller tools for profit, reimbursements and ads
Quartile
AI ad platform with a managed team for Amazon and retail media ads
How we grade them
| 2.6GPACarbon6Good | 1.8GPAQuartileWeak | |
|---|---|---|
| Value for money | CA small seller can stay on ManageByStats Free for $0. The first paid step, ManageByStats Pro, is $59.97 a month, inside the normal range here but well above sellerboard's $15. And Seller Investigators keeps 25% of each reimbursement, where Getida keeps 20%. | CNo price is published: every plan is quoted after a demo, and the pages don't even say whether the fee is a flat rate or a share of ad spend. With nothing to compare, it sits at C, the grade for no stated price. |
| Free plan and trial | BManageByStats Free covers 4 seller accounts, profit and KPI dashboards, unlimited users and reports, review automation and 100 tracked keywords. One seller could run on that. Seller Investigators' audit is free too, though it takes its cut once money comes back. | FNothing free on record: no free plan and no trial, just a demo with sales. You can't see the software for yourself until you've been quoted. |
| Features | BBetween them, its tools handle reimbursements, profit and KPIs, inventory forecasting, listing and Buy Box alerts, wholesale price-list scanning and PPC. That's more of the job than most here, but as separate products with separate prices, not one app. | CHourly bids from Amazon Marketing Stream, custom rules, Marketing Cloud audiences, promotions and a strategist, across Amazon, Walmart, Instacart, Criteo, Google, Meta and Microsoft. Broad for ads, but ads is all it does: no research, profit or reimbursements. |
| Ease of use | CNo rating on record. ManageByStats and the other tools need developer access to your Seller Central account, and with several products to choose from, there's some working out which ones you actually need. | CNo rating on record. The strategist does much of the running, but you start with a demo, and every channel you advertise on has to be connected. |
| Platforms and integrations | BWeb and a browser extension, with no phone or desktop app. It connects to Seller Central, Amazon Ads, Walmart Marketplace, Keepa, Slack and Jira. | BWeb only, with no phone or desktop app. It connects to Amazon Ads and DSP, Walmart, Instacart, Criteo, Google Ads, Meta Ads and Microsoft Ads, more channels than the other ad tools here. |
| Best for | a pick-and-mix of Amazon back-office tools | ad software with a strategist attached |
The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: Carbon6 and Quartile. How we grade
Where they differ
- Carbon6 has a free plan. Quartile does not.
- Only Carbon6 lists a browser extension.
- Carbon6 also covers inventory and dashboards.
At a glance
| Carbon6 | Quartile | |
|---|---|---|
| Pricing | Free plan | Paid |
| Starts at | $0.95 per ASIN / month for AMZAlert listing alerts | Not published |
| Free plan | ManageByStats has a free plan with 4 seller accounts, profit and KPI dashboards, 100 tracked keywords and 12 months of initial sync. ScanUnlimited's free plan allows one price-list upload a month. | None |
| Free trial | PPC Entourage has a free trial (length not stated); Seller Investigators runs a free reimbursement audit | None listed |
| Web | ||
| Browser extension | ||
| Made by | Carbon6 | Quartile |
| Price read from | carbon6.io | Not confirmed |
| Checked | Oct 18, 2026 | Oct 18, 2026 |
Who each one suits
Carbon6
- Amazon sellers who want reimbursements, inventory and profit tools from one company
- FBA sellers who would rather pay a cut of recovered money than a subscription
- Agencies that resell or white-label reimbursement and ad services
Quartile
- Brands that want ad software and a managed team in one contract
- Sellers advertising on Amazon plus Walmart, Instacart or Google
- Mid-size and enterprise brands with large ad budgets
Worth knowing
Carbon6
- Each tool is priced separately, with no plan that bundles them; Seller Investigators keeps 25% of every reimbursement it recovers.
- PPC Entourage costs 2.9% of ad spend across connected accounts; PixelMe starts at $500 a month plus a one-time $500 onboarding fee.
- DSP Prime, ChargeGuard and D8aDriven publish no prices, and SellerAssist is $750 per Seller Central account with the term not stated.
- ManageByStats and other tools need developer access and limited user permissions on your Amazon seller account.
Quartile
- Quartile publishes no prices; every plan is quoted after a demo with sales.
- Its pages do not say whether the fee is a share of ad spend or a flat rate.
- It is an advertising service only: there are no product research, profit or reimbursement tools.
Key features
Carbon6
- FBA reimbursement recovery
- Seller Investigators audits an account within 48 hours, then files and manages reimbursement cases with Amazon for a 25% commission on what is recovered.
- Profit and KPI dashboard
- ManageByStats pulls Seller Central data into profit, KPI and financial breakdowns, with checklists, alerts, review requests and keyword tracking.
- Inventory forecasting
- SoStocked forecasts demand from past sales, seasonality and spikes, sends reorder alerts, tracks purchase orders and accounts for IPI restock limits.
- Listing and competitor alerts
- AMZAlert watches your listings and competitors' ASINs for changes in price, rank, content, Buy Box, suppression and negative reviews, by email or text.
- Wholesale price-list scanning
- ScanUnlimited matches a supplier's price list against Amazon products to show which items may be worth buying, at over 300,000 products an hour.
- PPC software and ad services
- PPC Entourage automates Sponsored Products, Brands, Display and video campaigns; PixelMe and DSP Prime handle off-Amazon traffic and Amazon DSP.
Quartile
- Hourly bidding on Amazon ads
- Adjusts keyword bids, budgets and placements by the hour using Amazon Marketing Stream data, with campaigns built per keyword, ASIN and match type.
- Dedicated strategist
- Every customer gets a strategist backed by channel specialists who manage campaigns alongside the software and meet regularly to review results.
- Many ad channels
- Covers Amazon Sponsored Ads and DSP, Walmart, Instacart, Criteo retail sites such as Target and Best Buy, plus Google, Meta, Microsoft and ChatGPT ads.
- Custom rules
- Set your own bid and budget rules for one or many campaigns and run them daily, weekly or monthly, alongside or instead of Quartile's AI.
- Amazon Marketing Cloud audiences
- Uses Amazon Marketing Cloud data to map shoppers' paths to purchase and build interest-based audiences used across channels.
- Promotion management
- Promo Management runs Amazon promotions in step with the ad strategy, with promotion reports and a dashboard of competitors' offers and price changes.
Plans
Carbon6
ManageByStats Free$0
ManageByStats profit dashboard: 4 seller accounts, unlimited users and reports, review automation, 100 tracked keywords and inventory views.
Seller Investigators$0
FBA reimbursement recovery. The audit is free; Carbon6 keeps a 25% commission on money Amazon pays back, charged only after you are paid.
AMZAlert New Seller$0.95
per ASIN / month
Listing, review and Buy Box alerts every 24 hours. Advanced Seller is $1.10 per ASIN (4-hour checks) and Elite Seller $1.35 (hourly, API, Slack).
ManageByStats Pro$59.97
per month and up
ManageByStats with 8 seller accounts, 250 tracked keywords, expense tracking, competitor and listing tools and a launch tracker. Enterprise is custom.
ScanUnlimited Unlimited$70
per month
Wholesale sourcing: unlimited price-list uploads of up to 100,000 products each, scanned against Amazon, with Keepa sales-rank charts.
SoStocked$474
for 3 months
Inventory forecasting and reorder alerts for up to 1,000 orders a month on all Amazon marketplaces, with onboarding. Longer contracts are offered.
Quartile
Pricing could not be confirmed. See quartile.com.
Ways to pay less
Carbon6
- Other savings
25% off AMZAlert or PPC Entourage for a year
The AMZAlert and PPC Entourage pages each advertise 25% off for one year, applied at checkout, with the promotion said to end soon and no end date given.
Quartile
No public discounts listed.
