Ranked by privacy, no-account setup, and the scan-sign-send workflow
Last updated: July 2026
A document often contains your most sensitive information — IDs, contracts, medical forms, bank statements. We weighted these criteria in order:
100% on-device processing with Apple Vision and Core ML. No account, no cloud, no ads. Full scan-sign-send workflow offline, with redaction baked permanently into exports and OCR in 30+ languages including Arabic. Free to start; a Pro subscription removes the watermark and unlocks advanced filters.
iOS can scan documents directly from Notes and the Files app with no extra install. It is private and on-device, but lacks OCR editing, redaction, signatures, and multi-page document management.
A mature scanner with on-device OCR and optional cloud sync. Strong features, but it prompts for accounts and gates several capabilities behind a subscription trial.
Convenient if you already use Adobe Document Cloud, but it requires a free Adobe account and performs OCR in the cloud, meaning documents are transmitted to Adobe's servers.
Feature-rich and popular, but, as of 2026, uses an account, syncs to its own cloud, and shows ads on the free tier. In 2019, Kaspersky reported a malicious module in its Android app (later removed by the developer), a reminder to weigh privacy carefully.
When a scanner uploads to the cloud, your document exists on a third-party server — where it can be breached, retained after deletion, mined for data, or handed over under legal request. On-device scanning removes that entire category of risk: if the document never leaves your iPhone, there is no server-side copy to compromise. This is why privacy-focused users and professionals handling regulated data (legal, medical, financial) increasingly choose on-device tools.
With Pocki, the entire workflow runs offline on your iPhone:
Start scanning privately. Pocki is free to start and works offline on iPhone and iPad.
Download on the App StoreRankings reflect the Pocki team's assessment prioritizing privacy and no-account use. Competitor information is based on publicly available documentation and reporting as of July 2026 and may change. Verify current details on each vendor's official website. See our detailed scanner comparison for a feature-by-feature breakdown.