MD

Mark Dunne

Founder of Seller Stacked & Supplements Wise

I have been running e-commerce operations for over eleven years across Amazon FBA, Shopify, and eBay. I handle everything from Amazon PPC and Google Ads to Shopify theme development, SEO, product sourcing, and compliance. Seller Stacked is where I share honest reviews of the AI tools I evaluate and use to run my own business.

37

Articles published

56

Tools reviewed

11+

Years in e-commerce

Areas of expertise

Amazon FBAShopifyGoogle AdsAmazon PPCSEOAI ToolsProduct SourcingEmail MarketingSupplement IndustryListing Optimisation

Articles by Mark

Guides

eDesk Review 2026: The Best Helpdesk for Multichannel Ecommerce Sellers?

eDesk is the only helpdesk that natively connects Amazon Seller Central, eBay, Etsy, Walmart, and Shopify in one inbox. We tested it for 30 days across a live multichannel operation. Here is what works, what does not, and who should actually buy it.

·10 min read
Guides

Best AI Ad Creative Tools for Ecommerce Sellers 2026

AdCreative.ai, Canva, Flair AI, OpusClip, InVideo, HeyGen, and Blotato compared for e-commerce sellers. Which tools actually produce usable paid ad creative, which are best for video, and the minimum viable stack at each budget level.

·23 min read
Guides

Best AI Customer Service Tools for Ecommerce Sellers 2026

Tidio, Gorgias, eDesk, and HubSpot compared for e-commerce sellers. Which tool handles your support volume, fits your platform mix, and does not surprise you with add-on billing you did not budget for.

·17 min read
Comparisons

eRank vs EverBee: Which Etsy Research Tool Is Better in 2026?

eRank and EverBee answer entirely different questions for Etsy sellers. eRank is the SEO and keyword research tool; EverBee is the product research and sales validation tool. Which one you need depends on where you are in the process.

·12 min read
Guides

Best AI Tools for Dropshipping in 2026

Copy.ai, Canva, AdCreative.ai, Klaviyo, Tidio, and Omnisend compared for dropshipping sellers. Which tools actually improve margins at different order volumes, and the exact stack worth buying at each stage.

·17 min read
Guides

Best AI Ecommerce Analytics Tools for Shopify and DTC Brands 2026

Triple Whale, Klaviyo, Omnisend, and HubSpot compared for attribution, customer analytics, and profit tracking. Which tools actually tell you what is driving revenue, what your customers are worth, and whether you are profitable.

·16 min read
Guides

How to Automate Your Shopify Email Marketing with AI

The five flows every Shopify store needs running on autopilot, which AI features actually move the needle, and a head-to-head breakdown of Klaviyo, Omnisend, and Postscript tested across a real supplement store.

·15 min read
Guides

AI Shopping Agents: What Sellers Need to Know in 2026

Amazon Rufus, ChatGPT Shopping, Google AI Overviews, and Perplexity are changing how customers discover and buy products. What each agent looks at, which one matters most for your business, and how to optimise your listings and content for AI-driven product discovery.

·14 min read
Guides

Best Free AI Tools for E-Commerce Sellers

15 free AI tools tested for product photography, listing copy, customer support, keyword research, email marketing, and video content. The complete zero-cost starter stack for new e-commerce sellers.

·15 min read
Case Study

AI vs Manual: Product Listing Writing Comparison (With Examples)

90-day test comparing AI-generated and manually written Amazon product listings across 40 products. Conversion rates, keyword coverage, time savings, and the hybrid approach that works best.

·15 min read
Comparisons

Best AI PPC Automation Tools for Amazon Sellers

Helium 10 Adtomic, Perpetua, Quartile, Pacvue, Jungle Scout PPC, and Feedvisor compared for AI-driven Amazon PPC management. Bid automation, keyword discovery, and ACOS improvement tested across real accounts.

·25 min read
Comparisons

Klaviyo vs Omnisend: Which Email Platform Fits Your Shopify Store?

A direct comparison of the two leading Shopify email and SMS marketing platforms. Segmentation, pricing at real list sizes, deliverability, and ease of use compared.

·12 min read
Comparisons

Helium 10 vs Jungle Scout: Which Amazon Research Tool is Right for You?

A practical head-to-head comparison of the two biggest Amazon product research tools. Keyword research, sales estimates, PPC management, and pricing compared at real usage levels.

·12 min read
Guides

Best AI SEO Tools for E-commerce Sellers in 2026

Surfer SEO, Semrush, Frase, Hike SEO, and SEOWriting.ai compared for content optimization, keyword research, and store visibility.

·17 min read
Comparisons

AI Chatbots for E-Commerce: Tidio vs Fin vs eDesk

Tidio, Intercom Fin, and eDesk compared for e-commerce customer support. AI resolution rates, order lookup, multi-channel support, and pricing per conversation vs per seat.

·17 min read
Guides

Best AI Tools for TikTok Shop Sellers 2026

CapCut Commerce Pro, Canva, Jasper, Writesonic, Tidio, Triple Whale, Fliki, and Blotato compared for TikTok Shop sellers. Video creation, listing copy, customer support, and analytics tools ranked by value.

·22 min read
Comparisons

Jasper vs Writesonic: Which AI Writing Tool is Worth It?

A head-to-head comparison of two established AI writing platforms for e-commerce sellers. Brand voice, GEO visibility tracking, content quality, and pricing compared.

·12 min read
Comparisons

HeyGen vs Synthesia: Which AI Video Platform Should You Pick?

A practical comparison of the two leading AI avatar video platforms for e-commerce sellers. UGC-style ads, multilingual content, avatar quality, and credit systems compared.

·11 min read
Guides

Best AI Tools for Etsy Sellers 2026

eRank, EverBee, Flair AI, PhotoRoom, Canva, Jasper, Writesonic, and Tidio compared for Etsy sellers. Keyword research, product photography, copywriting, and customer service tools ranked by value.

·16 min read
Guides

Amazon AI Agent Policy: What Every Seller Must Know

Amazon's AI agent policy affects every seller using repricing tools, PPC automation, customer service bots, and listing optimisers. Here is what it actually says and what you need to do.

·11 min read
Comparisons

Gorgias vs Tidio: Which Helpdesk Platform Should You Choose?

A practical comparison of two leading Shopify helpdesk platforms. Order management, team scaling, multichannel support, and pricing at real ticket volumes compared.

·12 min read
Guides

Best AI Voice and Audio Tools for E-commerce Sellers in 2026

ElevenLabs, Fliki, Synthesia, and Murf AI compared for product video voiceovers, ad narration, and multilingual content.

·11 min read
Comparisons

Surfer SEO vs Frase: Which SEO Content Tool is Better Value?

A practical comparison of the two leading SEO content optimisation tools for e-commerce bloggers. Content editor, SERP analysis, AI visibility tracking, and pricing compared.

·11 min read
Guides

AI Product Photography Tools: I Tested 8 Options Side by Side

Same three products, eight AI tools, side-by-side results. PhotoRoom, Flair AI, Pebblely, Listing Optimization AI, Canva, Claid.ai, Pacdora, and Tripo 3D compared on real output quality.

·16 min read
Comparisons

Best AI Repricing Tools for Amazon Sellers 2026

Seller Snap, Aura, BQool, Repricer.com, and Feedvisor compared for AI repricing intelligence, speed, and value across different seller sizes.

·15 min read
Guides

Best AI Tools for Amazon Product Photography in 2026

Six AI tools that replace expensive product photo shoots. Covers background removal, lifestyle scenes, 3D mockups, and packaging renders for Amazon and Shopify sellers.

·12 min read
Guides

How to Optimise Your Amazon Listings for Rufus AI in 2026

Step-by-step guide to restructuring your Amazon listings for Rufus and COSMO. Covers titles, bullet points, backend attributes, A+ Content, and the tools that help you audit intent coverage.

·16 min read
Guides

How to Get Your Products Cited by ChatGPT and Google AI Overviews

A practical guide to getting your e-commerce products recommended by AI answer engines. Covers content structure, schema markup, platform-specific tactics, and the monitoring tools that track your AI visibility.

·17 min read
Comparisons

Tidio vs Gorgias: Which AI Chatbot is Right for Your Store?

A practical comparison of the two most popular AI support tools for Shopify sellers. Pricing at real volumes, AI capabilities, and when to choose each.

·8 min read
Guides

How to Build a Week of E-commerce Social Content in One Hour

A step-by-step workflow for batching a full week of social media content across platforms using Blotato. Practical framework for product sellers.

·8 min read
Guides

Best AI Video Tools for E-commerce Sellers in 2026

Five AI video tools that let you create product explainers, UGC-style ads, and social content without a film crew. Honest comparison with pricing and use cases.

·10 min read
Comparisons

Best Amazon Product Research Tools in 2026: Jungle Scout vs Helium 10 vs ZonGuru vs DataDive

A head-to-head comparison of the four leading Amazon product research tools. Which one fits your budget, experience level, and selling strategy.

·11 min read
Guides

Shopify AI Features: An Honest Look at Magic and Sidekick in 2026

Everything Shopify's built-in AI tools can and cannot do for your store. What to use, what to skip, and where you still need third-party tools.

·9 min read
Comparisons

Klaviyo vs Omnisend vs Postscript: Which Email and SMS Platform Fits Your Store?

A side-by-side comparison of the three leading email and SMS marketing platforms for Shopify sellers, with pricing at real list sizes.

·9 min read
Case Study

How I Use AI to Run My Supplement Brand (Real Results)

Real results from 12 months of integrating AI tools into daily e-commerce operations.

·11 min read
Guides

Best AI Tools for Amazon FBA Sellers

The complete guide to AI tools that give FBA sellers a real competitive edge.

·12 min read
Guides

Best AI Tools for Shopify Store Owners in 2026

A curated breakdown of the AI tools actually worth paying for if you run a Shopify store.

·11 min read