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MaskID guide, tutorials, and limitations

Instructions for preparing and reviewing a copy, privacy and storage details, and clear explanations of what the app cannot guarantee.

Reviewed on October 13, 2026

What it is for

MaskID creates a working copy so you can manually hide personal information a specific recipient does not need. Capture, OCR, editing, and export are processed on-device.

Before you start

Confirm that you are allowed to process and share the document and that the recipient accepts a copy with hidden data. MaskID does not provide legal advice or guarantee an organization will accept the result.

Tutorial: prepare a copy step by step

  1. 1. Import or capture

    Choose Camera or scanner, Photos, Files, the Share Extension, or a file you selected from Drive or Dropbox. Work on a copy and keep any original you need.

  2. 2. Review the complete document

    Check that every page is present and readable. Inspect edges, reverse sides, signatures, QR codes, barcodes, small print, and repeated text.

  3. 3. Apply masks

    Add masks manually. OCR suggestions can help locate fields, but they do not decide what you should hide or replace your review. Move, adjust, or remove any mask that is inaccurate.

  4. 4. Export and review again

    Create a rasterized copy. Open the exported result, zoom into every page, and confirm required information is visible while the information you meant to hide is unreadable and absent from other pages.

  5. 5. Share with context

    Confirm the recipient accepts a copy with hidden data and does not require another format or an unmodified document. Share the exported file you reviewed, not the original.

Recommended final check

Reopen the exported file outside the editor and visually inspect every page. The technical check looks for specific file issues; it cannot tell whether you forgot to cover a region or whether the document is suitable for your procedure.

Privacy, storage, and connections

Local by default

Capture, OCR, masks, and the main export workflow run on-device. Local storage is encrypted. The Vault uses separate controls and is not part of sync.

Pro iCloud sync

It is optional. When enabled, a restorable package can be saved to your private CloudKit database, including original and working images, the source PDF, OCR, masks, and metadata. The Vault is not synced. Apple provides iCloud.

Drive and Dropbox

Direct connection is optional and requires authorization. Tokens are stored in Keychain and you choose which file to import; transfers with the provider require internet.

Analytics and diagnostics

Firebase Analytics is off by default and only enabled with your consent. Crashlytics is used separately for diagnostics. Document content, images, OCR, and masks are not sent to these services.

Clarifications and limitations

  • OCR can miss sensitive data, misread it, or suggest unnecessary masks. A person must review every page.
  • The export check is technical; it does not prove all sensitive content was found or certify absolute safety.
  • An incorrect, incomplete, or misplaced mask can leave information visible. Also inspect codes, signatures, reverse sides, and repeated pages.
  • A redacted copy may not meet a landlord's, public authority's, company's, or other recipient's requirements. Confirm those requirements.
  • Export does not replace legal, regulatory, identity, or document-retention advice. Keep originals when appropriate.
  • Pro iCloud syncs the complete document package described above. Do not enable it if you want content to remain only on-device.
  • Drive, Dropbox, iCloud, the App Store, networks, system permissions, and available storage are provided by others and may be unavailable.

MaskID Free and MaskID Pro

MaskID Free allows up to 10 documents to be processed in total, cumulatively. MaskID Pro removes that limit and adds batch processing, templates, styles, image controls, watermarks, and automations. Essential manual masking and export are available in Free.

See plans and pricing

Apple shows price, duration, renewal, and eligibility for any trial before confirmation. The 7-day annual trial is only offered to eligible accounts.

Supported devices

MaskID is available for iPhone and iPad. The site and listing may show iOS and iPadOS; there is currently no MaskID app for Apple Watch.

Contact support

Related documentation

Back to the MaskID page