UDI Label Preflight
Offline GS1 Data Preflight
Only for iPhone
$19.99 · Designed for iPhone. Not verified for macOS.
iPhone
Preserve raw GS1 DataMatrix evidence, compare five supported AI fields with approved label values, and issue a local PDF inspection record before bulk printing.
A barcode can decode successfully and still disagree with the data approved for a label. UDI Label Preflight gives medical-device label teams a focused inspection record for that exact question: what was captured, what was approved, and where do they differ?
What was captured?
Start an inspection for a label proof, product, or work order. Add a reference photo, scan a GS1 DataMatrix on a compatible iPhone, or paste the raw decoded payload. The record preserves the visible raw text, byte length, capture method, control-character evidence, parsed fields, and any unrecognized remainder.
What was approved?
Enter the values authorized for the label. The app compares them field by field with the decoded content and explains Match, Mismatch, Missing in Barcode, Expected Value Not Provided, Invalid Format, or Unsupported results. Each inspection receives an overall Pass, Warning, or Fail with reasons and recommended follow-up.
Which data is covered?
Version 1 recognizes these GS1 Application Identifiers:
- 01: GTIN
- 10: batch or lot
- 11: production date
- 17: expiration date
- 21: serial number
Checks cover the supported structure, GTIN length and check digit, encoded dates, allowed field length and characters, duplicates, separators, truncation, and unparsed data. Unsupported content is displayed rather than silently discarded.
What can be handed to a reviewer?
Generate a local PDF containing available photo and raw-capture evidence, the approved and decoded values, comparisons, issues, notes, timestamps, and app and rule versions. Saved inspections can be reopened, have their PDF regenerated, be shared, or be deleted from local history.
UDI Label Preflight requires no account for its core workflow and does not send inspection records to a YunFan Labs service.
Scope matters: this is a data-syntax and approved-value preflight tool. It does not measure symbol print quality, contrast, dimensions, or quiet zones; replace an ISO-compliant barcode verifier; or provide GS1, FDA, regulatory, or legal certification. It is independent and is not endorsed by GS1 or a regulator.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, 帆 胡, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- 帆 胡
- Size
- 1.4 MB
- Category
- Utilities
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Yunfan Labs
