QR Visualizer Live

Name: QR Visualizer
Author: Cervus

Cervus2 apps · 31 installsEducationFreecom.qrvisualizer.app

QR scanner that shows decoding step by step

Alert me ★ Watch Open in Play ↗

Total installs: 3
Installs / day: —
Rating: —★
Released: 27 Apr 2026
Last update: 27 Apr 2026
Countries: —

Install history

exact counter from Google Play

30dAll

Installs per day · last 90 days

Change timeline

No changes recorded yet. We compare every crawl with the previous one and list title, icon, screenshots, description, version, price and availability changes here.

Country availability

Availability has not been checked for this app yet. “Check all countries” looks the app up in about 140 Google Play storefronts and shows where it is live, listed but not installable, or missing — plus any country-specific (custom) store listings.

Top countries

Country data will be available soon.

We estimate where downloads come from using the app’s position in Google Play’s top charts in about 140 countries. This app is not in any chart we have collected yet; the estimate appears as soon as it is.

Top chart positions

Not in any tracked top chart.

App manifest

Read this app's manifest from Google Play: permissions, declared SDKs, components and AdMob app ID. Saved analysis appears here automatically.

Permissions

1 in 1 group

0 Sensitive0 Notable1 Routine

OtherRoutine1

Access to miscellaneous device features that don't fit other categories

Check with Google Play that you got this app legitimatelyGoogle Play license check · com.android.vending.CHECK_LICENSE

Sensitive = can reach personal data, location, camera/mic or act on your behalf. Notable = changes how your device behaves. Routine = normal for almost every app. Source: Google Play's permission list for all versions of this app.

Store listing

Full description

QR Visualizer is a QR code scanner and learning tool that shows how QR codes are decoded step by step. Scan a QR code with your camera or load an image, then follow the full decoding process visually: image processing, finder patterns, alignment, perspective correction, grid sampling, format information, mask removal, data extraction, error correction, and the final decoded message. Whether you are learning how QR codes work, debugging a difficult scan, teaching barcode concepts, or just curious about what happens inside a QR reader, QR Visualizer turns the process into a clear visual walkthrough. Features: Scan QR codes with the camera or from an image See each decoding stage visually Understand finder patterns, alignment, format bits, masks, and data extraction Explore examples with clean, damaged, large, small, and invalid QR codes Useful for students, developers, teachers, and curious users QR Visualizer makes QR code scanning transparent, educational, and easy to understand

Growing in Education

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