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What I liked
We had the same problem where flagship devices worked great but budget phones struggled a lot. What helped wasn’t just improving OCR, but redesigning the whole flow to be more forgiving. We added better framing guides, auto-capture delay tuning, and most importantly switched to a more structured recognition approach instead of relying on raw text detection. Tools like https://ocrstudio.ai/bank-card-scanner/ credit card scanner app are built around that idea—handling imperfect input and extracting structured card data rather than expecting a perfect scan. Once we adjusted for hardware differences instead of fighting them, consistency improved a lot.