Built for Amazon sellers,
by an Amazon seller.
Built by a Canadian Amazon seller managing thousands of ASINs, fed up with clunky inventory tools — then shared with every seller fighting the same battle.
Founder
Joshua Purba
Active Amazon Seller · Based in Canada 🇨🇦 · Builder of ReplenFlow
I'm based in Canada and I've been selling on Amazon for over six years. Today I personally manage thousands of ASINs across my own catalog — so the problems ReplenFlow solves aren't theoretical, they're the ones I run into every single day. Like most sellers, I started small: a handful of SKUs, a notebook, and the belief that I'd figure inventory out as I scaled. I didn't. As the catalog grew into the thousands, the spreadsheets multiplied. One tab for sales velocity, another for restock math, another for supplier costs, another for orders that hadn't shipped yet. Every Sunday turned into a manual data-entry marathon, and every Monday I'd still feel like I was guessing at what to reorder.
I tried the "real" inventory tools. Most were either eye-wateringly expensive, locked the features I actually needed behind enterprise tiers, or were so bloated with things I'd never use that the simple stuff — like "tell me what to buy this week" — got buried five clicks deep. I wanted something robust and affordable. Nothing on the market hit both.
So I built it. At first just for me — a clean way to upload my FBA reports, see what was selling, and know exactly what to reorder. Then a few seller friends asked for access. Then a few more. It became clear that the problem I was solving wasn't mine alone, it was the problem most Amazon sellers quietly live with. ReplenFlow is the result.
I still use ReplenFlow every single day to run my own Amazon business. Every feature you see was shipped because I needed it, not because a product roadmap told me to. That's the promise: this is software built for Amazon sellers by an Amazon seller — and it stays that way.
Where Revive AI came from
The most painful thing about managing hundreds of ASINs isn't the ones that sell well — it's the ones that quietly stop selling. They sit there, dormant, buried under your top movers. You forget they exist. Months go by. By the time you notice, the rank has slid, the buy box is gone, and you've missed a window of profit you were never even reminded was on the table.
I lost real money to dormant ASINs. So I built Revive AI — a feature that scans every product in your catalog and surfaces the ones that look dead but still have life in them: rank drops, competing seller counts, profit potential, ROI. If something is worth replenishing, Revive AI tells you before you forget it ever existed. It's the feature I wish I'd had years ago.
The bigger vision
I want Amazon sellers to win. Inventory management is just the first piece of the puzzle — ReplenFlow is the start of a broader toolkit being built specifically for sellers who want serious software without serious overhead. More tools, all built around the same principle: solve the problem actual sellers have, at a price actual sellers can pay.
Robust
Real seller-grade features, not stripped-down demos.
Affordable
Priced so sellers at every stage can actually use it.
Built by a seller
Every feature ships because a seller actually needed it.
From the ReplenFlow blog
Guides, playbooks, and lessons from running a real Amazon business.
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