Comparison

Code Scan vs SignaKey

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Code Scan

This app scans and generates a wide variety of 1D and 2D barcodes, including QR codes, DataMatrix, and specialized formats like VDS. It offers features like camera zoom, flash support, and a history of scanned codes. Users can also share scanned data and create new barcodes.

Highlights
  • Scans all 1D and 2D barcodes
  • Supports MicroQR, VDS, and ICAO Datastructures
  • Adjustable camera zoom and flash for low light
  • Scan history and sharing functionality
  • Generates QR, DataMatrix, and PDF417 barcodes
  • Dark mode and dark AppIcon support
Features
Read full description

Scan and create every common 1D and 2D barcode - one at a time or continuously in Batch Scan. Export your history as CSV or automatically send scans to your own server. Unlike an ordinary scanner, Code Scan also verifies the cryptographic seals on official documents. WHAT IT READS • QR, MicroQR and rMQR (rectangular MicroQR) • DataMatrix, including DMRE • Aztec, PDF417, MaxiCode • EAN-8, EAN-13, UPC-A, UPC-E • Code 39, Code 93, Code 128, Codabar, ITF / ITF-14 • GS1 DataBar and DataBar Expanded • VDS, VDS-NC and IDB document seals Codes are decoded on your device: from the live camera, from a photo in your library, or from an image you share into the app from somewhere else. DIGITAL SEALS ON OFFICIAL DOCUMENTS This is what sets Code Scan apart: it does not just read the seal, it checks the cryptographic signature. • VDS (Visible Digital Seal, BSI TR-03137) in DataMatrix • VDS-NC (ICAO) and IDB (ICAO Datastructure for Barcode) in QR codes • Signatures verified against X.509 certificates, kept up to date automatically • Import your own X.509 certificates for closed ecosystems • MRZ data contained in a seal is parsed and shown in readable form This app supports reading and verification of (among others) VDS Profiles: - Social Insurance Card - Residence Permit Document - ICAO Visa Document - ICAO Emergency Travel Document - German Arrival Attestation Document - Address Sticker for German Identity Card - Place of Residence Sticker for German Passports VDS-NC Profiles: - ICAO PoT and PoV (ISO/IEC JTC1 SC17 WG3/TF5) CREATE YOUR OWN CODES • QR, DataMatrix, Aztec, PDF417 and Code 128 • Live preview while you type • Choose the QR error correction level (L / M / Q / H) or the PDF417 level (0-8) • Keep your codes in a library, mark favorites, share any of them as an image FASTER IN EVERYDAY USE • Camera light in four brightness steps and 1x / 2x / 4x zoom - for tiny print, dark rooms and laminated documents • Share a screenshot from any app to read the code inside it, or share a link to turn it into a code • Batch Scan: capture multiple codes without a result screen and save them straight to your history • Siri and Shortcuts: create a code or open the scanner by voice, or build both actions into your own shortcuts • Recreate a scanned code in a single tap, with the content already filled in A HISTORY THAT STAYS ORGANIZED • Grouped into Starred, Today, This Week and Before • Scanning a code again updates the existing entry instead of piling up duplicates • Export and share your scan history as a CSV file • Stored seals are re-verified in the background against the current certificates, so an expired signature stops showing as valid FOR PROFESSIONAL USE • GS1 application identifiers parsed and labelled • Open recognized links immediately, skipping the result screen • Copy and share the raw code data instead of the interpreted content • Optionally send scans automatically to your own HTTPS endpoint (off by default) • Play a confirmation sound after successful transfers • Native iPad layouts PRIVACY Decoding happens entirely on your device, and your history stays there. There is no account and no tracking. To verify seals, the app downloads the public signer certificates from our certificate service. The optional face comparison against a document portrait is the one feature that sends an image to a KURZ Digital service, and only when you start it yourself. For wishes and suggestions just contact us at info@kurzdigital.com

About

SignaKey

Read full description

The SignaKey app allows for scanning of custom encoded symbology

Screenshots

Code Scan4 screens
SignaKey4 screens

Verdict

The call

The clearest difference is update cadence: Code Scan at every 2 weeks against SignaKey's monthly. SignaKey's advantage is iOS requirement (15.6 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Code Scan ships an update every 2 weeks, SignaKey monthly. The most recent releases landed on October 14, 2026 and October 2, 2026 respectively.

Scorecard2 real differences · 8 level
Code Scan versus SignaKey: the parameters behind the verdict, then further details
ParameterCode ScanSignaKey
PriceFreeFree
Rating4.6 (741 ratings) — better—
Positive reviews80.6% of reviews—
Number of ratings741 — better—
Update frequencyEvery 2 weeks — betterMonthly
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPod
Requires iOS18.015.6 — better
Further details — not scored
Size15 MB22 MB
Age rating4+4+
DeveloperKURZ Digital Solutions GmbH & Co. KGSignaKey LLC

Bugs and requests

Code Scan

Reported bugs

2 issues
  • Does not load websites
  • Copy or close options produce no result

Requested features

2 requests
  • Ability to view previously scanned QR codes (not just data)
  • Option to contribute via donation instead of ads

SignaKey

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Code Scan

No in-app purchases

None

SignaKey

No in-app purchases

Questions

Is Code Scan free?
Code Scan is free to download, with no in-app purchases.
Is SignaKey free?
SignaKey is free to download, with no in-app purchases.
Do Code Scan or SignaKey have ads?
Neither Code Scan nor SignaKey shows ads.
Which is updated more often, Code Scan or SignaKey?
Code Scan ships an update every 2 weeks, and SignaKey monthly. Most recently, Code Scan was updated on October 14, 2026 and SignaKey on October 2, 2026.

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