Best Online Arbitrage Software for 2026

Look, real talk. Most people asking about the best online arbitrage software are asking the wrong question. They think the software finds the deals. It does not. Software is a flashlight, not a treasure map. It lights up data that is already on Amazon. You still have to read the data and pull the trigger.

I do $100K+/month on Amazon. I have been at this since 2018. The exact same five or six tools have been in my stack the whole time, and most of my 70+ students at The Scaling Society use the same ones. The list barely changes from year to year. What changes is which sellers actually use them correctly.

This post is the actual stack. What each tool does, what to pay for, what to skip, and the order to add them in as you grow.

The 4 software categories every OA seller actually needs

Forget brand names for a second. Every online arbitrage business runs on four jobs, and each job is one piece of software:

1. Sourcing. Scanning retailer websites and matching products to Amazon listings. This is Tactical Arbitrage.
2. Data lookup. Reading the price history, sales rank history, and offer count history on every ASIN. This is Keepa.
3. Lead analysis. Calculating ROI, fees, buy box, and competition on a single product page. This is SellerAmp, ScoutX, RevSeller, or BuyBotPro.
4. Repricing. Adjusting your live prices automatically to stay in the buy box. This is Aura, Bqool, or Amazon's free Automate Pricing.

That is the whole stack. If your tool does not do one of those four jobs, you are paying for a feature, not a category. Most OA software lists you see online are 30 tools long because affiliate commissions are good. The real list is short.

You do not need all four to start. You do need to know which job each tool does so you do not buy three tools that all do the same thing.

Tactical Arbitrage: the sourcing engine

Tactical Arbitrage is the industry standard for online arbitrage sourcing. If you have ever Googled OA tools you have probably already seen the name. The reason it is the standard is because nothing else scans entire retailer sites at scale the way TA does.

"Tactical Arbitrage is hands down the best sourcing software when it comes to online arbitrage. Now, even if it's the best, most people that actually try the software actually stop using it really, really fast because they have a hard time getting results." — Chris, This Tactical Arbitrage Strategy Made Me Millions (Aug 2025)

That is the honest take. The tool works, but most people quit it in 30 days because they think they are going to load up a scan, hit go, and have a list of $300 profit deals waiting in the morning. That is not how it works.

You build the scan filters. You read the leads. You verify on Keepa. You ship. The tool just speeds up the matching part. The two features you actually use:

• Product Search. You point it at a retailer site (Walmart, Kohl's, Target, etc) and TA pulls every product page off that site, matches it to Amazon by UPC or title, and tells you the spread.
• Reverse Search. You upload a list of ASINs you want to source and TA scans the retailer sites to find which ones carry those products and at what price. This is how I do most of my sourcing now.

The packages range from the Flip Pack (manual product entry only, no scans) all the way up to the Big Boy. For most OA sellers, the Online Arbitrage and Product Sourcing Package is the right tier. It costs around $89/month and gives you both Product Search and Reverse Search. The Flip Pack is too limited unless you are doing wholesale-only.

Tactical Arbitrage replaced SourceMogul in the market. SourceMogul shut down in 2024. Sellermogul is the spiritual successor and gets a separate review, but for now, TA is the default.

Keepa: the data layer you cannot skip

If I had to keep only one tool, it would be Keepa. Not Tactical Arbitrage. Not SellerAmp. Keepa.

Keepa is a Chrome extension and a paid web service that shows you the entire price history, sales rank history, offer count history, and buy box history for every ASIN on Amazon. That is the data that tells you whether a product is going to sell, at what price, and whether you can win the buy box.

The free version of Keepa is a trap. It shows you the price line but it hides the buy box line, the sales rank graph, and the offer count history. Without those three things you literally cannot validate a lead.

"If you do not see this pink line, it is probably because you still have the free version, and you need to get the paid version of Keepa if you want to actually have this pink line. So what this pink line is is the buy box." — Chris, How to use Keepa for Amazon FBA, Keepa Tutorial (Jan 2024)

Paid Keepa is $19/month. Cheaper than your Netflix. Non-negotiable. If you are trying to do OA without it you are guessing, and OA done by guessing is how people lose $5K and quit.

The three tabs on Keepa you live in every single day:

• Price History. The pink line is the buy box. You want it flat or trending up over the last 90 days. Spikes are dangerous.
• Statistics. Tells you 90-day average buy box price, 90-day average sales rank, and how often the listing has been in stock. This is your math.
• Offers tab. Tells you which sellers are on the listing right now and at what price. This is your competition check.

If you have not learned to read these three things, paying for any other software is a waste. We have a full Keepa tutorial that walks through every chart line by line.

SellerAmp SAS: the lead-by-lead analyzer

SellerAmp SAS (often just called SAS) is a Chrome extension. When you are on an Amazon product page, it pops a sidebar that shows you everything: estimated monthly sales, fees, ROI, buy box history, sellers list, restrictions, hazmat status, variation breakdown. It is the calculator you use to decide yes or no on a single lead.

SellerAmp is the most popular lead analyzer in OA. The pricing is around $29/month. If you do any kind of manual sourcing where you are looking at one ASIN at a time, you need a tool in this category and SellerAmp is the default.

What I actually use it for:

• Quick ROI math (cost, fees, buy box, profit, ROI in one screen)
• Eligibility check (am I gated in this brand or category)
• Variations check (which size/color is actually the buy box winner)
• Sellers list (how many FBA sellers, are they all sharing the buy box, is one dominating)
• Estimated monthly sales (so I know how many units I can realistically move)

The thing SellerAmp gets right that others get wrong is the sellers list view. You can see at a glance whether the listing is a buy box rotation between five FBA sellers or whether one Amazon-owned ASIN is hoarding 100%. That changes how you bid on the lead.

RevSeller: the free-ish Amazon overlay

RevSeller is the older cousin of SellerAmp. It is a Chrome extension that overlays ROI, fees, and rank straight on the Amazon product page. No sidebar, just numbers right in the listing.

The thing RevSeller has going for it is the price. It is a one-time payment of around $99 for the first year, then about $79/year after. Compared to SellerAmp at roughly $348/year, that is a fraction of the cost.

The trade-off: less depth. RevSeller does not give you the full sellers list view, the variation analyzer, or the eligibility check the same way SAS does. For a beginner doing manual sourcing on a budget, RevSeller is a fine starting point. Once you scale past a few hundred SKUs you will probably want to upgrade to SellerAmp anyway.

My honest take: RevSeller is what I tell brand-new students to start with if they cannot stomach $29/month yet. Pay the $99, learn how to read leads for six months, then upgrade to SellerAmp once you have a few wins under your belt.

ScoutX: when you do not want to pay for SellerAmp

ScoutX showed up in 2023 as a SellerAmp alternative. It does most of the same things on a paid plan that runs lower than SAS. The interface is cleaner. Some sellers prefer it.

"You can use this plus Keepa, and that's way more than enough if you do not want to do reverse sourcing." — Chris, SellerAmp vs ScoutX, Finally Some Competition for SellerAmp? (Apr 2023)

The reason I am not pushing ScoutX over SellerAmp is the depth of the sellers list and the eligibility check. SAS is still ahead on those two features. But if your priority is cost and you want a clean ROI calculator, ScoutX is a real option. It is not a clone, it is a competitor with its own UX choices.

InventoryLab also released a free Chrome extension that does basically what SellerAmp does for the cost calculator part. If you are already on InventoryLab for your shipping plans, you already have that included. Worth knowing about before you pay for a third tool.

BuyBotPro: auto-sourcing for shortcut hunters

BuyBotPro is in a weird category by itself. It is part lead analyzer (like SellerAmp), part auto-sourcer (it has a feed of pre-found deals you can buy). The pitch is that it does the analysis FOR you and tells you yes/no on a deal.

My take on BuyBotPro is this: tools that do the thinking for you are how you build a business that depends on the tool. When the tool dies, your business dies. I have seen this happen with at least three OA tools over the last five years.

If you want to use BuyBotPro as a lead analyzer, fine. It works. But if you are using it as your sourcing engine because the daily deal feed seems easier than learning Tactical Arbitrage, you are paying $40+/month to skip the learning curve. That learning curve is your moat. Once you learn TA you can find deals that nobody else has touched yet. That is where the real money is.

I cover this in more depth in my guide on finding profitable OA products. The TL;DR: shortcuts in OA almost always become bottlenecks.

The repricer question (and when to add one)

You do not need a repricer in month one. I am going to say it again because every new seller asks me this and the answer is always the same.

Amazon ships you a free repricer. It is called Automate Pricing. It is inside Seller Central. It sets rules for your listings (match buy box, beat lowest FBA, etc) and it does the basic work fine.

Free Automate Pricing works for the first 50 to 100 SKUs you ship. The reason to upgrade to a paid repricer is when one of these is true:

• You have more than 100 active SKUs and the rules-based logic of Automate Pricing is too dumb to handle the buy box dynamics on each one
• You moved from FBA to FBM and you need second-by-second repricing to win the buy box against fulfillment time
• You are running brand-restricted or wholesale SKUs where the repricer needs to understand min/max floors more aggressively

When you cross that line, the top tools are Aura and Bqool. Both run around $97/month for the entry tier and both have AI-driven repricing that is way ahead of Automate Pricing. I have used both. I run Bqool internally right now for the FBM accounts I touch, and I have used Aura before. Honest answer: most sellers cannot tell the difference between them in the first year.

Day-one repricer for an OA seller doing 10 SKUs? Skip it. Automate Pricing is fine. Use the $97/month on Tactical Arbitrage instead.

InventoryLab and your prep workflow

InventoryLab is in a different category from everything else above. It is your shipping plan and accounting software. When you have a shipment to send to FBA, InventoryLab is what you use to create the listing, print the FNSKU labels, log the cost basis, and track the profit on every unit.

Pricing is around $69/month. There is no free alternative that does what InventoryLab does at the same level of polish. Amazon's built-in shipment creation flow works, but it is brutal to use at scale and it does not track cost basis or per-unit profit the way IL does.

If you do your own prep at home, you will live in InventoryLab. If you ship through a prep center, your prep center probably uses something like InventoryLab on their side, and you may not need it directly. Some sellers in The Scaling Society ship 200+ units a week through a prep center and never touch InventoryLab. Others do all their own prep and InventoryLab is open all day.

Skubana, Sellercloud, and other enterprise inventory tools exist for the $1M+ seller crowd. Ignore them until you cross that mark.

The minimum stack under $200/month

Here is the actual minimum software stack for a brand-new OA seller. Total cost under $200/month including Amazon's seller fee:

Tool	Category	Monthly Cost
Amazon Professional Seller Plan	Required to sell	$39.99
Keepa (paid)	Data lookup	$19
RevSeller (annual / 12)	Lead analyzer	$8.25
InventoryLab	Shipping/prep	$69
Tactical Arbitrage (when ready)	Sourcing engine	$59-$89
Total month one	Without TA	$136.24
Total once you add TA	Full stack	$195-$225

What I would actually do as a brand-new seller in 2026:

1. Month 1. Pay for Amazon Pro plan, Keepa, and RevSeller. Source manually from one retailer. Goal: send 30 to 50 units in. Learn what a good lead looks like.
2. Month 2. Add InventoryLab. Get your shipping workflow tight. Hit 100+ units sent in.
3. Month 3. Add Tactical Arbitrage. Run your first reverse search on the products you already know sell. Scale sourcing from 1 retailer to 8.
4. Month 6+. Upgrade RevSeller to SellerAmp. Consider a paid repricer if you crossed 100 active SKUs.

That order matters. Do not buy Tactical Arbitrage in month one. You will load it up, get overwhelmed by the 4,000 leads it spits out, and quit because none of them look like deals. Build the eye first. Then add the firehose.

Software mistakes that cost OA beginners money

I have watched the same software mistakes kill more beginner OA accounts than any other single failure mode. Here is the list, in order of how much they cost.

Mistake 1: Using the free version of Keepa and thinking it is enough. The free version hides the buy box line. You will buy products that look profitable on the surface but have zero buy box history and never sell. I have seen students drop $2K on a single SKU this way.

Mistake 2: Buying Tactical Arbitrage on day one. The tool is great but the firehose of leads will drown you. You need to know what a good lead looks like before you can filter for them. Spend 30 days sourcing manually first.

Mistake 3: Paying for 3 tools that do the same job. SellerAmp + RevSeller + ScoutX + BuyBotPro all do roughly the same thing. Pick one. The newbie compulsion to "have everything" is real and expensive.

Mistake 4: Paying for a repricer at month one. Free Automate Pricing covers the first 50 to 100 SKUs. Paying $97/month for Aura when you have 8 SKUs in your account is wasted money.

Mistake 5: Trusting the tool more than your own eyes. Every tool gets ROI calculations wrong sometimes. They use estimated fees. They miss prep cost. They miss inbound shipping cost. Always do the math yourself on big buys.

This last one is the most expensive. I had a student last year buy 200 units of a SKU that SellerAmp said was 42% ROI. Real ROI after prep and inbound was 19%. He still made money, but he overpaid because he trusted the screen. This is one of the seven real reasons OA sellers fail.

Build your own ROI sheet. Verify every tool's math against your own at least once a month. The tool is a flashlight. You are the brain.

What to do next

You do not need every tool on this list. You need the right ones in the right order:

1. Keepa paid. Sign up today. $19/month. Non-negotiable.
2. One lead analyzer. RevSeller if you are budget-conscious. SellerAmp if you have wins under your belt and want depth.
3. InventoryLab when you start your first shipment.
4. Tactical Arbitrage after you have shipped 50+ units and you know what a good lead looks like.
5. Paid repricer only after you cross 100 active SKUs.

If you want the deeper picture on how all of this fits together, read the full guide to online arbitrage on Amazon next. It walks through the entire OA business model from sourcing to shipping. And if you want to see me run this exact stack on a real ASIN live, get on the Thursday training below. I source one lead start to finish in front of you using these exact tools.

The software does not make money. The system does. The right stack just makes the system faster.