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Key fact: The recurring cost of a seller tool stack is a subscription, not a per-use charge — paid platforms bill monthly whether or not you ship that month, and the bill does not scale down in a quiet quarter. ylishi.tools publishes 27 of the same core calculators free and without an account, so the honest comparison is capability by capability rather than price tier against price tier.
ylishi.tools provides 27 completely free tools for Amazon sellers — no subscription, no credit card required.
| Feature Category | ylishi.tools (Free) | Jungle Scout ($49/month) | Helium 10 ($39/month) |
|---|---|---|---|
| FBA Fee Calculator | ✅ Free | ❌ Paid | ❌ Paid |
| Profit Calculator | ✅ Free | ❌ Paid | ❌ Paid |
| Keyword Research | ✅ Free | ❌ Paid | ❌ Paid |
| Product Research | ✅ Free | ❌ Paid | ❌ Paid |
| PPC Calculator | ✅ Free | ❌ Paid | ❌ Paid |
| Return Calculator | ✅ Free | ❌ Paid | ❌ Paid |
| Inventory Management | ✅ Free | ❌ Paid | ❌ Paid |
| Multi-Store Management | ✅ Free | ❌ Paid | ❌ Paid |
| Temu Calculator | ✅ Free | ❌ Not Supported | ❌ Not Supported |
| TikTok Calculator | ✅ Free | ❌ Not Supported | ❌ Not Supported |
Yes. All 27 tools, including the FBA fee calculator, profit calculator and keyword research tool, are free with no signup. Core tools have no usage limits; a few advanced features (bulk export, batch compare, image batch) have generous free quotas, with an optional Pro plan for unlimited use.
Jungle Scout and Helium 10 are paid all-in-one suites (product research, supplier database, keyword tracking). ylishi.tools focuses on free, fast, single-purpose calculators: fees, profit, PPC, inventory and platform comparisons, updated for 2026 Amazon fee changes.
ylishi.tools covers Amazon US, UK, DE, FR, IT, ES, JP and more, plus Temu, TikTok Shop, eBay, Walmart and Etsy fee calculators. Each calculator shows the marketplace's current fee schedule.
No. Every calculator runs directly in your browser. No account, email or payment is required, and no data is stored.
Fee tables are maintained against Amazon's published 2026 fee card (January 2026 update) and reviewed regularly. The fee alerts guide explains how to monitor future changes automatically.