ScanFlow vs
Microsoft Lens

Feature	ScanFlow	Microsoft Lens
Price	Free (Pro from $29.99/yr)	Free (with Microsoft 365)
Account Required	No	Yes (Microsoft account)
Independent App	Yes — standalone	Part of Office ecosystem
Local Storage	On device	OneDrive required
Offline Mode	Full offline	Limited
Cloud Sync	iCloud, Google Drive, Dropbox, OneDrive	OneDrive only
OCR	Yes	Yes
Document Signing	Yes	No
PDF Merge	Yes	No
QR Code Scanner	Yes	No
Password Protection	Yes	No
ID / Passport Extraction	Yes	No
Privacy	No data collection	Microsoft data policies
Ads	No ads	No ads

Our Verdict

Microsoft Lens is a competent scanner that integrates tightly with the Microsoft 365 ecosystem. If you already use Word, PowerPoint, and OneDrive daily, Lens offers convenient export options directly into those apps. However, this tight integration comes at a cost: you need a Microsoft account to use it, your documents are routed through OneDrive, and the app has limited functionality when you are offline.

ScanFlow is a fully independent document scanner. No account is required, no ecosystem lock-in, and no mandatory cloud storage. Your documents stay on your device. Features that Microsoft Lens simply does not offer — document signing, QR scanning, PDF merging, password protection, and ID extraction — are built into ScanFlow from the start.

If you value privacy, independence from big-tech ecosystems, and a complete feature set that works offline, ScanFlow is the better choice.