Seller 365 vs SourceMogul: Which online arbitrage tool delivers better ROI?

Online arbitrage transforms inventory sourcing from a time-consuming grind into a profit machine. Find the right products at the right margins and you’ll watch your Amazon business grow exponentially. But the software you choose makes all the difference.

Tactical Arbitrage is an online arbitrage tool that scans 1,400+ retailers to find profitable opportunities that others miss—and it’s now included in Seller 365. Meanwhile, SourceMogul has also built its reputation as a dedicated platform in the area. 

Let’s compare these online arbitrage heavyweights head-to-head and see which one actually delivers more for your money.

What is Seller 365?

Seller 365 is a comprehensive Amazon seller toolkit that includes Tactical Arbitrage—a powerful online arbitrage software. For just $69 monthly, you get Tactical Arbitrage plus nine other essential seller tools in one bundle.

Tactical Arbitrage within Seller 365 processes 24 million product matches daily and has facilitated over 11 million successful searches for resellers. The platform features Quick Picks for immediate access to pre-analyzed products, multi-store simultaneous searches, and fully automated scanning that works even when you’re not.

Here’s everything included in Seller 365 alongside TA:

• ScoutIQ: Mobile app for scanning books and media with instant profitability analysis.
• Scoutify: Retail arbitrage mobile scanner for in-store sourcing with immediate profit calculations.
• ScoutX: Chrome extension that displays profit analysis directly on Amazon product pages.
• InventoryLab: Inventory management tool for creating FBA/FBM shipments and tracking stock.
• SmartRepricer: Automated repricing tool that adjusts prices based on competition and your strategies.
• FeedbackWhiz Emails: Automated review request system for building seller reputation.
• FeedbackWhiz Alerts: A monitoring tool that tracks listing changes, Buy Box status, competitor activity, and more.
• FeedbackWhiz Profits: Financial dashboard for tracking revenue, expenses, and profitability across Amazon and Walmart.
• InventoryLab Accounting: An ecommerce bookkeeping system that generates tax-ready financial reports for Amazon sellers.

What is SourceMogul?

SourceMogul is an online arbitrage platform designed exclusively for Amazon sellers seeking retail and wholesale opportunities. It provides data on sales rank, pricing, and listing restrictions.

The platform scans over 2 million products daily across 200+ US retailers and 150+ UK retailers, identifying items priced lower on external websites than they sell for on Amazon. Their pricing starts at $67 monthly (after promotional discounts from the regular $97 rate).

SourceMogul vs Seller 365: A side-by-side comparison for arbitrage sellers

Here’s how these leading sourcing platforms compare across factors that directly impact your bottom line. While both tools help you find profitable products, the differences in coverage, features, and total cost reveal a clear advantage for one.

Sourcing depth & analysis

SourceMogul provides historical price and sales rank graphs to help sellers identify potential hazards like temporary price spikes or rank drops. They also offer reverse and wholesale searching on top of regular sourcing modes.

Seller 365 offers significantly more comprehensive sourcing depth via Tactical Arbitrage. It has six distinct search modes: Product Search across 1,400+ retailers, Quick Picks for immediate access to pre-analyzed deals, Reverse Search to find cheaper sources for Amazon products, Wholesale manifest analysis, Amazon-to-Amazon flips for cross-marketplace arbitrage, and specialized Library Search for book arbitrage.

Each mode includes detailed data on competitor stock levels, Buy Box prices, and sales rank in an interactive graph format. With features like “Set it and forget it” automated searches and the ability to run multiple searches simultaneously, Tactical Arbitrage delivers both depth and breadth.

Winner? Tactical Arbitrage in Seller 365

Store coverage & data freshness

SourceMogul covers approximately 350+ retailers combined across US and UK markets. The platform performs regular stock checks and allows on-demand verification to ensure accuracy.

Tactical Arbitrage scans over a thousand more retail websites globally, offering significantly broader coverage. It searches multiple stores simultaneously, cutting hours of manual research down to minutes. 

The platform also supports 12 Amazon marketplaces worldwide: the US, UK, Germany, France, Italy, Spain, Canada, Mexico, Brazil, India, Australia, and Japan. For unique sites not in the database, the platform allows you to add custom sites.

Winner? Tactical Arbitrage in Seller 365

Sourcing types & methods

The tools you use to find products determine whether you’ll spot deals your competition misses. Here’s how these platforms stack up on giving you different ways to discover profitable inventory.

SourceMogul supports online arbitrage, wholesale arbitrage (via CSV uploads), category-based searches, ASIN-based reverse searches, and real-time scanning through their Chrome extension. 

Seller 365 offers a more diverse range of sourcing methods because it doesn’t just have one sourcing app, but four. There’s Tactical Arbitrage’s standard online arbitrage with specialized modules for wholesale manifest analysis, reverse lookup, and more. Beyond that, you also get ScoutIQ for book flipping, Scoutify for retail arbitrage, and ScoutX for instant product research directly on Amazon pages. 

This multi-pronged approach allows sellers to diversify their sourcing strategies rather than relying exclusively on online arbitrage.

Winner: Seller 365

Ecosystem value

SourceMogul functions as a standalone sourcing tool. Once you find profitable products, you’ll need separate software for inventory management, listing creation, repricing, accounting, and other essential seller functions. This means juggling multiple subscriptions, interfaces, and learning curves.

Seller 365 provides a complete ecosystem where you have an app for each part of your selling journey. Some apps are even integrated so that data flows seamlessly without much effort. Your sourced products from ScoutX and Scoutify can be listed directly via InventoryLab. Your min/max prices in InventoryLab can be shared with your SmartRepricer account and pricing strategies. Products monitored for their reviews, performance, and profits can be accessed in all three FeedbackWhiz tools (Emails, Alerts, and Profits). This eliminates friction points that slow down operations and create opportunities for error.

Winner? Seller 365

Total cost of operation

SourceMogul costs $67/month (promotional rate, regular price is $97) for its sourcing capabilities alone. To build a complete seller toolkit, you’d need to add:

• Inventory management: ~$60/month
• Repricing tool: ~100/month
• Feedback management: ~15/month
• Accounting software: ~20/month

The total monthly investment quickly climbs to around $300, not including the time cost of managing multiple platforms.

Seller 365 has Tactical Arbitrage for a flat $69/month. That’s less than SourceMogul’s regular price for sourcing alone, yet includes nine additional tools. 

Winner? Seller 365

Profit tools

SourceMogul excels at finding profitable products but doesn’t help optimize those profits post-purchase. Once you’ve bought inventory, you’re on your own for repricing, customer feedback management, and financial analysis.

Seller 365 already includes tools specifically designed to maximize profits throughout the selling lifecycle. SmartRepricer automatically adjusts prices to maintain competitiveness and Buy Box position. FeedbackWhiz Emails helps generate positive reviews to improve conversion rates. FeedbackWhiz Alerts monitors listings to prevent hijackers and unauthorized changes that could hurt sales. Then, there are also Seller 365’s profit management tools: FeedbackWhiz Profits and InventoryLab Accounting. 

Winner? Seller 365

Scalability for growing businesses

SourceMogul offers unlimited searches and results, making it suitable for growing operations. While not explicitly designed for team collaboration, its usage structure makes it workable for businesses with virtual assistants or partners.

Seller 365 offers multiple scaling advantages, though. Tactical Arbitrage’s Search Manager allows you to run multiple scans simultaneously while automation features keep your sourcing pipeline full 24/7. Additionally, Seller 365 offers a dedicated Teams plan ($79/month) that supports up to 10 users for the apps included in the bundle. 

Winner? Seller 365

A quick recap

Factors	Seller 365	SourceMogul
Core function	A complete seller toolkit, including an online arbitrage tool	Online arbitrage platform
Websites covered	1,400+ websites across 12 countries	350+ retailers across US and UK
Monthly price	$69 (includes 9 additional apps)	$67 promotional ($97 regular) for sourcing only
Sourcing methods	Online arbitrage, wholesale analysis, reverse lookup, book flipping, retail arbitrage	Online arbitrage, wholesale CSV uploads, reverse search
Ecosystem	Part of an end-to-end solution from sourcing to accounting	Standalone tool requiring additional software
Profit tools	Includes repricing, feedback, and monitoring tools	Sourcing only, no post-purchase optimization
Scalability	Multi-scan management, automated sourcing, multi-user support	Unlimited usage but limited team features

The verdict: Which platform delivers better ROI?

When comparing Tactical Arbitrage and SourceMogul purely as online arbitrage tools, both have their strengths. 

But here’s the game-changing revelation: Tactical Arbitrage isn’t available as a standalone product—it comes bundled within Seller 365 along with nine other essential selling tools.

This completely transforms the value equation. At $69/month for Seller 365, you’re getting Tactical Arbitrage (which rivals or exceeds SourceMogul in most categories) plus nine additional tools for less than SourceMogul’s regular price of $97/month for sourcing alone. More importantly, the integrations between most of Seller 365’s apps eliminate the workflow friction that slows down operations and creates opportunities for error. 

So, for sellers focused on maximizing profits, Tactical Arbitrage and the entire Seller 365 bundle represent the smarter investment.

Ready to see the difference? Try Seller 365 free for up to 14 days and discover how much more efficient your Amazon business can be.