Stack zero is a German-language app for scanning, organizing, and searching documents using on-device OCR and AI. It stores searchable PDFs in iCloud Drive, offers privacy-focused features, and automates file naming and folder suggestions for efficient document management.
Stack zero is a File storage & sync product. It automates scanning, organizing, and searching documents securely on device and in iCloud. It is built as a consumer product for individuals managing personal documents. Stack zero is a paid product starting at $3. Stack zero is available on iOS.
TOBIAS FELIX TSCHOPP builds and maintains Stack zero, and the product first shipped in 2026. PulseGate's similarity index finds few close equivalents — Stack zero occupies a relatively distinct niche. Key capabilities include document scanning, OCR text recognition, and automatic file organization.
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