Rocket Source vs Size The Market

Side-by-side comparison to help you choose the right product.

Rocket Source logo

Rocket Source

Rocket Source analyzes Amazon data to find profitable wholesale products for your business.

Last updated: February 28, 2026

Size The Market logo

Size The Market

Size The Market tracks competitor prices in real time so you can make smarter pricing decisions.

Last updated: February 28, 2026

Visual Comparison

Rocket Source

Rocket Source screenshot

Size The Market

Size The Market screenshot

Feature Comparison

Rocket Source

Bulk Supplier Catalog Analysis

This is the foundational feature of Rocket Source. Instead of manually looking up individual products, users can upload an entire supplier spreadsheet or catalog file. The software then processes this list at scale, scanning millions of products by matching them to live Amazon data. This bulk analysis capability is what turns a task that could take days into one that takes minutes, enabling sellers to review vast numbers of potential products quickly and efficiently.

Comprehensive Profitability Metrics

Rocket Source provides the essential financial data needed to make a sound purchasing decision. It goes beyond just the sale price by integrating crucial cost factors like the current Buy Box price, estimated FBA fees, and referral fees. By calculating the net profit margin for each product based on your target cost from the supplier, it gives you a clear, data-backed view of which items are truly profitable before you ever place an order.

In-Depth Product & Market Intelligence

The tool delivers over 90 data points per product, offering a deep understanding of the market landscape. This includes the sales rank (BSR), category placement, number of competing offers, and product dimensions. Crucially, it also flags potential restrictions like brand gating or Hazmat requirements. This intelligence helps sellers assess not just profitability, but also demand, competition level, and any Amazon-compliance hurdles.

Variation and Listing Detail Detection

Rocket Source automatically identifies complex product listings, such as those with variations (e.g., different sizes or colors under one parent ASIN). It details the number of variations and the pack quantity. This feature is vital for wholesale sellers to ensure they source the correct specific variation from their supplier and accurately forecast sales for that particular item, preventing listing mismatches and inventory errors.

Size The Market

Automated Price & Stock Tracking

Size The Market provides professional-grade competitive intelligence by automatically monitoring prices and stock levels across more than 1,000 e-commerce websites. This foundational feature ensures you have a constant, real-time pulse on the market without manual effort. The system tracks not just listed prices but also promotions and product availability, giving you a complete picture of competitor activity and market conditions to inform your immediate and long-term strategies.

Machine Learning Product Matching

The platform employs advanced Machine Learning algorithms to accurately match your products with identical or similar listings in competitor catalogs. This process achieves over 99% accuracy, ensuring the data you base decisions on is reliable and relevant. This eliminates the error-prone and tedious manual work of product comparison, allowing you to review and approve matches in seconds and maintain a clean, trustworthy dataset for all your analytical needs.

Real-Time Alerts & Historical Analytics

Stay proactively informed with instant alerts for significant price changes, stock-out situations, or new product listings from competitors. This allows for immediate reaction to market shifts. Furthermore, the platform stores historical data, enabling you to visualize pricing trends over time, understand seasonal patterns, and make strategic decisions backed by comprehensive trend analysis rather than just a snapshot of the current moment.

You can fully customize your dashboard to display only the key performance indicators and data points most relevant to your specific business goals. Coupled with a powerful search function, this feature allows you to quickly find any product across all monitored websites without visiting them individually. This creates an efficient, centralized command center for all your market intelligence needs.

Use Cases

Rocket Source

Evaluating New Supplier Partnerships

When a seller receives a massive catalog from a potential new wholesale supplier, manually vetting it is impractical. With Rocket Source, the seller can upload the entire file and within minutes receive a analyzed report highlighting which products have the best profit margins, healthy demand, and low competition, allowing for a swift and informed decision on whether to pursue the partnership.

Streamlining Regular Reordering

For established sellers, maintaining profitable inventory levels requires constant re-evaluation of best-selling products. Before placing a reorder with a supplier, a seller can run the relevant SKUs through Rocket Source to confirm the current Buy Box price, check for any new restrictions, and verify that the profit margins still meet their targets, ensuring continued profitability.

Identifying Underserved Niches

A seller looking to expand their catalog can use Rocket Source's filtering on data points like "Top Level Category" and "BSR Percentage" to find products with good sales ranks in popular categories but with a relatively low number of total offers. This helps identify niches with strong demand but less intense competition, revealing hidden wholesale opportunities.

Avoiding Costly Compliance Mistakes

Before purchasing a large quantity of a product, a seller can use Rocket Source to check for critical eligibility flags. The software will highlight if a product is gated by a brand, requires Amazon approval, or is classified as Hazmat. This allows the seller to avoid investing in inventory they may not be able to list or that incurs special handling fees.

Size The Market

For E-commerce Brands Protecting MAP Policy

Brands can use Size The Market to automatically monitor online retailers for Minimum Advertised Price (MAP) violations. The platform provides clear evidence and real-time alerts when a retailer lists a product below the agreed-upon price. This enables brand managers to enforce policies consistently, protect brand equity, and maintain fair market pricing across all sales channels without manually scouring the web.

For Retailers Optimizing Pricing Strategy

Retailers can leverage the platform to track competitor prices in real-time for identical products. By understanding the current market rate, a retailer can make informed, data-driven decisions to price match, strategically undercut, or justify a premium. This use case is fundamental for staying competitive, maximizing profit margins, and winning price-sensitive customers without engaging in a race to the bottom.

For Agencies Delivering Client Insights

Marketing and e-commerce agencies can utilize Size The Market to provide tangible, data-backed competitive analysis for their clients. The platform allows agencies to create customized reports on market trends, competitor positioning, and pricing landscapes. This transforms their service from subjective advice to objective, foundational intelligence, adding significant value and building stronger, trust-based client relationships.

For Businesses Sizing Market Opportunities

Before launching a new product or entering a new category, businesses can use the platform's tracking and analytical tools to size the market opportunity. By analyzing competitor pricing, product assortment, and stock turnover in a specific category, companies can make foundational decisions about potential market share, viable price points, and inventory investment with greater confidence and reduced risk.

Overview

About Rocket Source

Rocket Source is a fundamental software tool designed for Amazon sellers who engage in wholesale sourcing. Its primary function is to automate and simplify the analysis of supplier product catalogs. For sellers, manually checking thousands of SKUs for profitability is a time-consuming and error-prone task. Rocket Source solves this by scanning these supplier lists against live Amazon data, transforming hours of work into minutes. It is built for both new and experienced Amazon FBA (Fulfillment by Amazon) and FBM (Fulfilled by Merchant) sellers who want to build a sustainable, data-driven wholesale business. The core value proposition is clear: it replaces guesswork with concrete data, allowing sellers to make sourcing decisions based on actual profit potential, current market competition, and Amazon's specific rules. By providing over 90 critical data points for each product, it empowers users to efficiently identify genuine opportunities while avoiding costly mistakes, thereby maximizing profitability and minimizing risk in their inventory investments.

About Size The Market

In the world of online commerce, success is built on a fundamental principle: knowing your market. Size The Market is a competitive and market intelligence platform designed to provide that essential knowledge. It serves as a foundational tool for ecommerce brands, retailers, and agencies, delivering clear, accurate, and real-time visibility into the competitive landscape. The core purpose of the platform is to automate the complex, time-consuming task of market monitoring. It transforms vast amounts of scattered online data into structured, actionable insights that businesses can use to make informed decisions. By continuously tracking competitor prices, promotions, product availability, and category movements across thousands of websites, it removes guesswork from commercial strategy. The platform goes beyond simple data reporting by including specialized analytical tools for understanding the impact of MAP violations, optimizing pricing strategies, and accurately sizing market opportunities. With intuitive visual dashboards, automated alerts for critical changes, and integrated workflows, Size The Market empowers teams to protect their brand's value, improve profit margins, refine their pricing approach, and systematically capture a larger market share through precise, data-driven analysis.

Frequently Asked Questions

Rocket Source FAQ

What type of files can I analyze with Rocket Source?

Rocket Source is designed to analyze supplier catalog files, which are typically provided in spreadsheet formats like CSV or Excel (.xlsx). You can upload these files directly to the platform. The software will read the product identifiers (like UPCs, EANs, or ISBNs) or titles within your file and match them to corresponding products on Amazon to pull in all the relevant data.

How current is the Amazon data provided?

Rocket Source integrates with Amazon's live marketplace data. This means the information you receive, such as Buy Box prices, sales ranks (BSR), and offer counts, is updated in real-time or near real-time. This ensures you are making sourcing decisions based on the most current market conditions and not on outdated or estimated information.

Does Rocket Source work for both FBA and FBM sellers?

Yes, Rocket Source is a valuable tool for both Fulfillment by Amazon (FBA) and Fulfilled by Merchant (FBM) business models. The profitability calculations can account for FBA fees, which is crucial for FBA sellers. For FBM sellers, the tool provides all the same market intelligence on price, demand, and competition, allowing them to calculate their own shipping and handling costs into the final profit margin.

What are "Flags" in the data points?

Flags are potential warning signs or important notifications about a product that Rocket Source detects. These are derived from Amazon's data and can include critical information such as whether a product is subject to "Brand Gating" (requiring approval to sell), is classified as hazardous materials (Hazmat), or is part of the "Small and Light" program. Reviewing flags helps you avoid products that could lead to listing problems or unexpected fees.

Size The Market FAQ

What types of businesses is Size The Market designed for?

Size The Market is fundamentally designed for any business that operates or competes in the online commerce space. This primarily includes direct-to-consumer e-commerce brands, online retailers, and digital marketing or e-commerce agencies that manage multiple client accounts. Any organization that needs to understand competitor pricing, product availability, and market trends to make informed commercial decisions will benefit from the platform.

How does the product matching technology work?

The platform uses Machine Learning (ML) algorithms to analyze multiple data points from product listings. These points include product titles, descriptions, images, specifications like model numbers, and brand information. The ML system is trained to identify these products across different websites and catalog structures, matching them with a high degree of accuracy (99%+), which far surpasses the reliability of manual or rule-based matching methods.

Can I track specific competitors or just general categories?

Yes, you have full control. Size The Market allows you to create custom competitor monitoring lists. You can specify the exact websites and online stores of your direct competitors to track. Simultaneously, the platform's broad monitoring of over 1,000 sites also allows you to observe general category trends and discover new or emerging competitors you may not have been previously aware of.

How quickly does the data update?

Size The Market provides real-time or near-real-time data updates. The system continuously crawls the tracked websites, ensuring that information on price changes and stock levels is fresh. You will receive instant alerts configured for significant changes, allowing you to react to market movements as they happen, which is foundational for maintaining a competitive edge in fast-paced online markets.

Alternatives

Rocket Source Alternatives

Rocket Source is a specialized software tool in the e-commerce category, designed to help Amazon sellers analyze wholesale supplier catalogs. It automates the process of checking product viability by pulling live data like pricing and fees, saving sellers significant manual effort. Users often explore alternatives for various reasons. These can include budget constraints, as pricing models differ between tools. Others may seek different feature sets, like integration with other platforms or specific data points not offered. The need for a different user experience or scalability for a growing business also drives this search. When evaluating an alternative, focus on core functionality. Ensure the tool provides accurate, live Amazon data for profit calculation. Consider the ease of uploading and processing supplier lists. Finally, assess the tool's ability to filter results to match your specific business criteria, such as minimum profit margins or sales velocity.

Size The Market Alternatives

Size The Market is a competitive intelligence platform for ecommerce. It automates the tracking of competitor prices and promotions, providing real-time data to inform pricing and commercial strategy. This category of software is essential for businesses aiming to stay competitive in fast-moving online markets. Users explore alternatives for various practical reasons. These can include budget constraints, the need for different feature sets, or specific integration requirements with their existing tech stack. Some may seek a tool with a stronger focus on a particular region or sales channel beyond the platform's scope. When evaluating any alternative, focus on core capabilities. Reliable, automated data collection is non-negotiable. Accurate product matching is the foundation of trustworthy insights. Finally, consider how the tool delivers those insights—through clear dashboards, actionable reports, and timely alerts—to ensure it fits seamlessly into your decision-making workflow.

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