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UPCitemdb
Who uses it, and for what
One row per story. The grade is for the claim that the business uses this tool, not for its revenue.
| Story | What it does there | When | Cost stated | Grade | Source |
|---|---|---|---|---|---|
| Underpriced AI | Looks up products by barcode so retail items skip the vision model. free tier | since March 2026 | C | Hacker News, 14 March 2026: Show HN: I added barcode scanning to my AI pricing app, 92% cheaper per scan (fkratzer) |
Grade A: the tool's maker or a payment processor confirms the use. Grade B: an independent report, or the tool is visible in public code. Grade C: the founder or the company says so.
Other tools for the same job
AI models, with the number of stories that use each.