If you're in the market for a wholesale list scanning tool, RocketSource and Scan Unlimited (now part of Carbon6) are two of the top dedicated options. Both focus specifically on analyzing supplier price lists for Amazon FBA sellers—unlike broader platforms that try to do everything.
This comparison breaks down the key differences to help you choose the right tool for your wholesale business. (For a complete overview of all options, see our best wholesale scanning tools guide.)
Important Update: Scan Unlimited removed their Chrome extension in February 2025, eliminating what was previously a key differentiator.

RocketSource homepage

Scan Unlimited homepage
| Feature | RocketSource | Scan Unlimited |
|---|---|---|
| Free Tier | 50k products/week | 10k products/month |
| Mid-Tier Price | $39/mo | $70/mo |
| Top-Tier Price | $69/mo | $100/mo |
| Free Conversions | 50,000/week | Limited |
| Chrome Extension | No | Removed (Feb 2025) |
| Bulk List Scanning | Yes | Yes |
| FBA Prep Database | Yes (140+ companies) | No |
| ISBN Converter | Yes | No |
| Years in Market | Newer | Established |
Both tools now offer free tiers, but the difference in value is stark. RocketSource's free tier offers 20x more scanning capacity, and paid plans are 30-44% cheaper.

RocketSource pricing
| Plan | Monthly Price | Products/Month |
|---|---|---|
| Startup | Free | ~200,000 (50k/week) |
| Growth | $39 | 1,000,000 |
| Scale | $69 | Unlimited |

Scan Unlimited pricing (January 2026)
| Plan | Monthly Price | Products/File |
|---|---|---|
| Limited | Free | 10,000 (1 file/month) |
| Unlimited | $70 | 100,000 |
| Unlimited Plus | $100 | 100,000 (faster) |
RocketSource offers significantly better value:
Over a year, the savings are significant:
| Tier | Annual Savings with RocketSource |
|---|---|
| Free | Both free (but 20x more capacity) |
| Mid | $372/year |
| Top | $372/year |
For the same core functionality—wholesale list scanning—RocketSource delivers equivalent results at substantially lower cost.
Both RocketSource and Scan Unlimited handle the essential wholesale scanning workflow:
For the core use case—upload a supplier list, get back profitability data—both deliver.
Free Conversion Tools (50,000/week): The most generous free tier in the industry. Convert UPC to ASIN, ASIN to UPC, EAN to ASIN, and ISBN to ASIN at scale—without paying a cent.
ISBN → ASIN Converter: Unique to RocketSource. If you work with book wholesalers, this is essential. No other scanning tool offers ISBN conversion.
FBA Prep Database: Exclusive access to 140+ FBA prep centers, searchable by state and service type. A valuable resource for sellers who outsource prep work.
API Access: RocketSource's Scale plan includes full API access for automating your wholesale workflows. Scan Unlimited doesn't offer API access at any tier.
Clean Interface: Purpose-built for wholesale scanning without unnecessary complexity.
Chrome Extension (Removed February 2025): Scan Unlimited used to offer a browser extension for on-page product research. This was removed in February 2025, eliminating their main competitive advantage over RocketSource.
Established Track Record: Scan Unlimited has been in the market longer, which some sellers view as a stability indicator.
| Tool | Weekly Limit |
|---|---|
| UPC → ASIN Converter | 50,000 |
| ASIN → UPC Converter | 50,000 |
| EAN → ASIN Converter | 50,000 |
| ISBN → ASIN Converter | 50,000 |
| FBA Prep Database | Unlimited |
| FBA Calculator | Unlimited |
Scan Unlimited offers a free "Limited" plan with 1 file upload per month (10,000 products max). This is significantly more restrictive than RocketSource's free tier, which allows weekly scans of up to 50,000 products—effectively 20x more monthly capacity.
Many wholesale sellers spend significant money on UPC/ASIN conversion tools. With RocketSource's free tier:
If you're currently paying for a separate conversion tool, RocketSource's free tier alone could justify the switch.
With Scan Unlimited's extension removed, neither tool now offers browser-based product research.
Not really. Here's why:
Traditional wholesale workflow:
Browser extensions are more valuable for online arbitrage sellers who browse websites looking for deals. Wholesale sellers typically work from supplier-provided lists, making batch processing the priority.
Many sellers pair their wholesale scanner with a free browser extension (see our comparison of tools with extensions):
Using RocketSource for list analysis + a free extension for browsing gives you the best of both worlds at no additional cost.
| Feature | RocketSource | Scan Unlimited | Advantage |
|---|---|---|---|
| Bulk list upload | Yes | Yes | Tie |
| Profit calculations | Yes | Yes | Tie |
| BSR data | Yes | Yes | Tie |
| Free conversions | 50,000/week | Limited | RocketSource |
| ISBN support | Yes | No | RocketSource |
| FBA Prep Database | Yes | No | RocketSource |
| API Access | Yes (Scale plan) | No | RocketSource |
| Pricing | Free-$69/mo | Free-$100/mo | RocketSource |
| Chrome extension | No | Removed | Tie |
| Time in market | Newer | Longer | Scan Unlimited |
Score: RocketSource leads on 5 features, Scan Unlimited on 1 (longevity).
RocketSource is the better choice if you:
Scan Unlimited might be the choice if you:
Honestly, with the removal of their Chrome extension, Scan Unlimited's competitive position has weakened. The main reasons to stay would be switching costs or specific features tied to your existing workflow.
If you're currently using Scan Unlimited, switching to RocketSource is straightforward:
The core workflow is identical: upload CSV, get results, make buying decisions.
For dedicated wholesale list scanning, RocketSource offers better value than Scan Unlimited by virtually every measure:
With Scan Unlimited's Chrome extension removed, the gap has only widened. Unless you have a specific reason to stick with Scan Unlimited, RocketSource is the smarter choice for most wholesale sellers.
Switch from Scan Unlimited and start saving immediately:
No credit card required to start.
Scan Unlimited removed their Chrome extension in February 2025. The specific reasons weren't publicly disclosed, but it may relate to Chrome's Manifest V3 requirements or business decisions about feature focus.
Both tools pull from similar Amazon data sources. Core metrics like BSR, fees, and seller counts are comparably accurate across platforms. We recommend testing both with the same supplier list to verify for yourself.
The core workflow doesn't require data migration—you upload fresh supplier lists each time. Any historical analysis you want to keep can be exported from Scan Unlimited for your records.
Yes. RocketSource's free tier includes 50,000 conversions per week and access to the FBA Prep Database, with no credit card required. This lets you fully test the platform before committing to a paid plan.
Both handle bulk lists efficiently. Processing speed is rarely a meaningful differentiator—what matters more is data accuracy and actionable insights. Both platforms deliver on these fronts.