InventoryLab Review 2026: Worth It After Threecolts?

InventoryLab is still a capable way to prep, list, and account for Amazon FBA inventory, but in 2026 it is hard to recommend for most sellers. After Threecolts bought it, the tool lost its standalone plan and now sells only inside the Seller 365 bundle at $69 a month, with no real-time profit and no PPC tracking. If you mainly want to know your true Amazon profit, Sellerboard does that job better from $19 a month.

This InventoryLab review draws on the current Threecolts product and pricing pages, the live app screens, and third-party user reviews from 2026. We rate it 3.0 out of 5. Below is what it does well, where it has slipped since the buyout, the full Seller 365 pricing, and how it stacks up against Sellerboard and Helium 10.

Quick Verdict

InventoryLab earns a 3.0 out of 5 from us. The List and Prep workflow plus built-in accounting still save US sellers real time. The score sits at average because it ships only inside Seller 365, skips live PPC and real-time profit, works in the US market only, and has drawn steady complaints since the Threecolts buyout.

• Buy if you sell on Amazon US and want listing, FBA prep, boxing, and basic accounting inside one app.
• Skip if you need real-time profit, PPC tracking, non-US marketplaces, or you do not want to pay for nine other apps to get this one.

The Bouncer: Who Should NOT Buy InventoryLab

InventoryLab is built for one job: prepping and accounting for Amazon FBA inventory in the United States. If your needs sit outside that lane, the $69 monthly bundle will feel like the wrong tool. Four buyer profiles should stop here and pick something that fits better.

• You sell outside the United States. InventoryLab and Scoutify are US-marketplace only. For worldwide profit tracking, the Sellerboard dashboard covers far more regions for less.
• You need real-time profit and PPC numbers. InventoryLab reads Amazon settlement data and ignores ad spend. Sellers who manage campaigns are better served by Sellerboard or, for a full suite, the Helium 10 platform.
• You want one tool, not a ten-app bundle. There is no standalone InventoryLab plan anymore. You buy the whole Seller 365 suite to get it, which is covered in our Seller 365 breakdown.
• You do private-label research and launches. InventoryLab does not do keyword research or product discovery. That is the job of the Helium 10 suite.

InventoryLab at a Glance

InventoryLab is an Amazon FBA workflow app that pairs a web tool for listing, boxing, and accounting with a mobile scanner called Scoutify. Threecolts now sells it as one of ten apps inside Seller 365 for $69 a month. It runs on the US marketplace only and posts a 3.0 out of 5 with us.

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The InventoryLab web app: one toolbar covers listing, inventory, accounting, and reports. Source: Threecolts / InventoryLab.

• Owner: Threecolts, since February 2024.
• Sold as: part of Seller 365, a ten-app Amazon bundle.
• Two apps: the InventoryLab web tool plus the Scoutify 2 mobile scanner.
• Best for: US Amazon arbitrage, wholesale, and FBA prep sellers.
• Marketplaces: United States only.
• Price from: $69/mo or $828/year (Seller 365 Basic).
• Free trial: 14 days (7 instant, 7 after linking Amazon), card required.

What Is InventoryLab?

InventoryLab is Amazon FBA software that turns sourcing into listings, shipments, and profit reports. Founded around 2013 by Ryan Stephens, it built its name as an all-in-one for arbitrage and wholesale sellers. Threecolts acquired it in early 2024 and folded it into the Seller 365 bundle, where it now lives alongside Tactical Arbitrage and other Amazon tools.

One naming note for long-time users: the web app used to be called Stratify and the scanner is Scoutify. Threecolts has retired the Stratify name, so the desktop tool is now just "InventoryLab" and the mobile app is "Scoutify 2." Both still work.

Who Should Use InventoryLab?

InventoryLab fits hands-on US sellers who move physical inventory through FBA every week and want listing, boxing, and bookkeeping in one place. It is strongest for online and retail arbitrage and small wholesale operations. It is a poor fit for ad-driven private-label brands and anyone selling outside the United States.

• Arbitrage and wholesale sellers who list and ship batches by hand each week.
• Prep centers that box and label inventory for multiple clients.
• Bookkeeping-averse sellers who want COGS and profit tracked without a separate accounting app.
• Scoutify users who scan in stores and want a buy list that flows into listings.

InventoryLab Features

InventoryLab splits into four feature areas: List and Prep for getting inventory to Amazon, Accounting for profit and cost tracking, Reports for restock and performance, and the Scoutify scanner for sourcing. The next sections cover each, with a screenshot of the live app and how the workflow runs in practice.

List and Prep (FBA Shipments)

List and Prep is the core of InventoryLab and the reason most sellers buy it. You add products in seconds, set price and condition, then let smart boxing assign units to boxes. The Smart Label Center validates every label to Amazon specs, and box-content documents generate automatically to cut warehouse delays.

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The Box It step of List and Prep: scanned units drop into numbered boxes with a live cost, value, and ROI overview. Source: Threecolts / InventoryLab.

In practice: a prep run flows Find It, Box It, Ship It. You search a product, set quantity and condition, and smart boxing splits units across boxes. Private workflows hold the Amazon submission until the full batch is set, so inventory lands in fewer fulfillment centers. You print Amazon-validated labels, then attach and ship.

Accounting, COGS, and Profit & Loss

InventoryLab Accounting tracks cost of goods and profit without a separate bookkeeping tool. It pulls sales from your Amazon settlement reports and subtracts more than 30 fee types automatically, then values inventory at real-time stock and per-unit cost. You set cost once at listing, and the SKU Profitability report ranks winners and losers.

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The SKU Profitability report breaks revenue, cost per unit, profit, and ROI down to the product level. Source: Threecolts / InventoryLab.

In practice: each sale pulls from Amazon settlement data, then InventoryLab subtracts COGS plus fees to show profit per SKU. You enter buy cost once and set ROI targets, and the report flags low-margin products. The catch is real: it updates on settlement data, not in real time, and it does not count PPC spend.

Reports: Velocity, Inventory, and Tax

InventoryLab reports answer the two questions sellers ask most: what should I reorder, and what did I actually make. The Sales Velocity report tracks how fast stock sells so you reorder before stockouts. Inventory Value shows capital tied up in stock, and a US-marketplace tax report plus CSV export covers your accountant at tax time.

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Active Shipments tracks each FBA shipment by fulfillment center, contents, and status. Source: Threecolts / InventoryLab.

In practice: the Velocity report is the one long-time users praise most for replenishment planning. You watch sell-through by SKU, then place reorders before you run dry. At tax time you export a couple of reports rather than rebuilding the year in a spreadsheet, which is the single biggest reason bookkeeping-averse sellers stay.

Scoutify 2 (Mobile Sourcing Scanner)

Scoutify 2 is the mobile half of InventoryLab, built for sourcing in stores. Scan a barcode and it returns profit after fees, your own buy and sell history, the live offer count, and restriction or hazmat flags. Ideal-buy alerts flag items that match your rules, and a Buy List exports straight into InventoryLab for listing.

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Scoutify 2 turns a barcode scan into profit-after-fees, an expenses breakdown, and offer counts in the aisle. Source: Threecolts / Scoutify.

In practice: in a store aisle you scan an item and Scoutify shows profit after Amazon fees, COGS, and shipping, plus restriction and hazmat flags and how many sellers already compete. Items you approve go on a Buy List you upload to InventoryLab. For book-focused scanning, the ScoutIQ app inside the same bundle is the faster pick.

InventoryLab Pricing

InventoryLab no longer sells on its own. The old standalone site redirects to Threecolts, and the only way to buy it is the Seller 365 bundle, which starts at $69 a month or $828 a year for one user. That single price unlocks ten apps, so you are paying for the suite to get one tool.

• Free trial: 14 days total, 7 instant and 7 more after you connect an Amazon Pro or Walmart account.
• Card required: a card is needed to start, and a temporary $1 authorization appears at signup.
• No standalone plan: you cannot buy InventoryLab or Scoutify separately anymore.
• US only: InventoryLab and Scoutify support the US marketplace; other Seller 365 apps cover more regions.
• Pro perk: only the Pro plan adds commission-free FBA reimbursements and 30-minute support.

For context on whether the wider bundle is worth it, our Seller 365 breaks down all ten apps. If you only want this tool, you can start the trial below, but read the verdict first.

InventoryLab Pros and Cons

InventoryLab still does the prep-and-account job well, but the post-buyout trade-offs are real and worth weighing before you commit. Here is the honest split, weighted toward what affects your daily FBA workflow and your monthly bill. The strengths are genuine, and so are the gaps.

Decision Matrix: InventoryLab vs Sellerboard vs Helium 10

Most sellers weighing InventoryLab are really choosing between three tools. Three questions decide it. Do you need FBA prep and boxing, or just profit numbers? Do you run ads that must show in your profit? And do you want a single suite for research too?

• Choose InventoryLab if: you sell on Amazon US and want listing, boxing, prep, and accounting inside one app.
• Choose Sellerboard if: you want real-time profit and PPC tracking at the lowest price, from $19 a month.
• Choose Helium 10 if: you need research, keywords, listings, ads, and analytics in one platform.

InventoryLab vs The Competition

InventoryLab is unusual because it does FBA prep and boxing, which most profit tools skip. That is its real edge. On profit accuracy and price, though, cheaper tools beat it. Sellers who want live profit move to the Sellerboard dashboard, and brands that want an all-in-one suite pick the Helium 10 platform.

For deeper post-launch analytics, the SellerLegend tool is a step up, and on a tight budget a dedicated profit dashboard like Shopkeeper covers true per-order margin from $20 a month. Neither handles FBA prep, which stays InventoryLab's one real advantage.

What Real Users Say

InventoryLab has thin third-party review volume, and the public numbers skew low. The strongest signals come from the Scoutify app stores and a small Trustpilot page. One caveat: the often-quoted 4.5 Trustpilot score belongs to parent company Threecolts across all its tools, not to InventoryLab.

You can check these yourself on Trustpilot, the Apple App Store, and Google Play listing for Scoutify 2.

What long-time users praise:

• All-in-one workflow: "one-shot solution" to source, list, manage, and analyze FBA in one place.
• Restock report: called "the best out there" for placing replenishment orders consistently.
• Tax-time accounting: built-in P&L means no surprises and no separate QuickBooks subscription.
• Scoutify speed: "scans really quick" is the one consistent positive on the mobile app.

What recent reviews complain about:

• Post-buyout decline: "Once the best, now useless" reviews blame the Threecolts takeover and the List 2.0 rebuild.
• Slow, buggy workflow: new listings reported taking "10 minutes to 2 hours" with crashes after Amazon API changes.
• Support: response times that were once best-in-class now draw waits and unanswered tickets.
• No PPC or real-time data: the top reason sellers say they left for Sellerboard.

Support, Onboarding, and Free Tools

Support now runs through Threecolts. Basic and Teams plans get standard 24-hour email support, and the Pro plan adds priority 30-minute responses. A help center, Threecolts University, and a system status page back it up. The honest note is that support quality has been the loudest complaint since the buyout, so test it during the trial.

• Standard support: 24-hour email response on Basic and Teams plans.
• Premium support: 30-minute priority response on the Pro plan only.
• Self-serve help: a Threecolts knowledge base and Threecolts University tutorials.
• Onboarding: the 14-day trial doubles when you connect a live Amazon account, so set it up early.

The Verdict: Is InventoryLab Worth It?

InventoryLab is a fair tool stuck in a hard spot. The List and Prep workflow and built-in accounting still earn their keep for US sellers who ship FBA inventory by hand. But the buyout removed the standalone plan, the profit reporting skips PPC and real time, and the 2025 rebuild dented trust. At 3.0 out of 5, it is a maybe, not a must-buy.

• Pick InventoryLab if: you sell on Amazon US, prep and ship by hand, and want listing plus accounting in one app.
• Skip it if: you want real-time profit, PPC tracking, or non-US marketplaces. In that case, Sellerboard is the better buy from $19 a month.

For most readers comparing FBA profit tools, our top pick tracks live profit and ad spend for a fraction of the Seller 365 price.