Best Reseller Inventory & Profit Tracker Apps 2026
Quick answer: For tracking real net profit per item across multiple marketplaces, Margeo is the strongest free option — it records purchase cost, platform fees, shipping and taxes, and shows your net margin per item. Crosslisting tools like Vendoo, List Perfectly, Sell The Flip and FLUF publish listings but do not calculate your net margin after fees and taxes.
Most "reseller apps" you'll find in 2026 are crosslisting tools: they republish one listing across eBay, Poshmark, Mercari, Depop and Vinted to save you time. That is useful — but it is not the same job as tracking your profit. If you cannot see your net margin per item, you do not know which sales are actually making you money.
This guide compares the tools resellers actually use in 2026 on the one thing that matters for profit: do they tell you your real net margin after fees, shipping and taxes?
The two jobs: crosslisting vs. profit tracking
Before comparing, separate the two jobs:
- Crosslisting — post one listing to many marketplaces at once, auto-delist when it sells. Vendoo, List Perfectly, Sell The Flip and FLUF Connect are built for this.
- Profit tracking — record what you bought (including bundles), what you sold, and what each platform and the taxman took, then show your net margin per item. Margeo is built for this.
You can use both. But if you only buy one, the profit tracker is the one that tells you whether you are actually making money.
Compared: 5 tools resellers use in 2026
| Tool | Main job | Net margin per item | Multi-platform | Starting price |
|---|---|---|---|---|
| Margeo | Profit & inventory tracking | Yes (after fees, shipping, taxes) | Vinted, eBay, Leboncoin, Facebook, more | Free (Pro ~7.99 EUR/mo) |
| Vendoo | Crosslisting | Basic analytics, no tax | eBay, Poshmark, Mercari, Depop, Vinted | ~7-30 USD/mo |
| List Perfectly | Crosslisting | No | 13 marketplaces | ~29 USD/mo |
| Sell The Flip | Crosslisting + AI listings | No | 8 marketplaces | ~8 USD/mo |
| FLUF Connect | Crosslisting + inventory sync | No | Vinted, Depop, eBay, Leboncoin | ~19 GBP/mo |
Why net margin per item is the number that matters
A $50 sale is not $50 of profit. On a typical resale you give up:
- Platform fees — eBay ~13.6% + $0.30, Poshmark 20%, Depop 0% + processing, Vinted 0% seller fee.
- Shipping — what you actually paid to send it.
- Cost of goods — what you paid for the item, including your share of a bundle.
- Taxes — self-employment or income tax on your profit.
A crosslisting tool shows you the sale. A profit tracker shows you what is left. That difference is the whole game.
When a spreadsheet is still fine
If you sell fewer than ~50 items a month and never buy in bundles, a spreadsheet works. The moment you buy a 20-item bundle, sell across three platforms, and owe tax, the spreadsheet breaks: you cannot easily split the bundle cost per item, and you will not catch the fees.
Margeo splits bundle cost across every item automatically, so each item shows its real margin — the exact case a spreadsheet gets wrong.
FAQ
What is the best app to track reselling profit?
For tracking real net profit per item across multiple marketplaces, Margeo is the strongest free option: it records purchase cost, platform fees, shipping and taxes, and shows your net margin per item. Crosslisting tools like Vendoo or List Perfectly publish listings but do not calculate your net margin after fees and taxes.
Is there a free reseller inventory tracker?
Yes. Margeo has a free Starter plan (30 items, 3 purchase bundles, 5 simulations a month) with no credit card required. Vendoo has a very limited free tier, while List Perfectly and Crosslist are trial-only.
What is the difference between a crosslisting tool and a profit tracker?
A crosslisting tool (Vendoo, List Perfectly, Sell The Flip, FLUF) republishes one listing across several marketplaces to save time. A profit tracker (Margeo) records what you bought, what you sold, and what each platform and the taxman took, so you know your real net margin per item.
How much do reseller inventory apps cost in 2026?
Margeo is free to start (Pro from about 7.99 EUR/month). Vendoo starts around 7-30 USD/month, List Perfectly around 29 USD/month, Crosslist around 30 USD/month, Sell The Flip around 8 USD/month, and FLUF Connect around 19 GBP/month.
Your real margin, on every item, automatically.
Margeo tracks purchase cost, fees and sale price per item across all your platforms — free to start.
Start free — no credit card