# QR-log-Bridge

> QR-log-Bridge (iPhone/iPad app by Roland Emrich.)

- Source: https://appshunter.io/ios/app/qr-log-bridge/id6760977103 (this page in markdown: same URL + `.md`)
- Developer: [Roland Emrich](https://appshunter.io/developer/1887105143)
- Category: Productivity, Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 26.0 · 9 MB
- Languages: American English
- Released: 2026-03-29
- Data updated: 2026-09-29
- User reviews in markdown: https://appshunter.io/ios/app/qr-log-bridge/id6760977103/reviews.md

## What is QR?

QR-log Bridge transfers files between screens and Apple devices through animated QR streams. It is designed for situations where no shared network, cloud service, cable, AirDrop, or removable storage is available.

Receive a QR stream live with the camera or reconstruct a transfer from a recorded video. Choose a file or photo on your iPhone or iPad and present it as a fullscreen QR stream for another compatible receiver.

## Receive Files

- Scan animated 1x1 and 2x2 QR streams.
- Reconstruct missing data using recovery information embedded in compatible streams.
- Decode recorded QR streams from Photos, Files, or locally captured videos.
- Automatically record and process compatible high-speed streams.
- Use longer automatic recording windows for compatible V9 streams, up to two minutes.
- Verify completed payloads and restore their original filenames.
- Monitor transfer progress and live capture quality.

## Send Files

- Choose one local file or photo.
- Generate V6 or high-throughput V9 streams directly on the device.
- Adjust V9 recovery overhead from 10% to 50%.
- Select stream timing from 20 to 60 FPS or use the 50 ms, 30 FPS, and 60 FPS presets.
- Present the generated stream in fullscreen without creating an intermediate upload or cloud copy.

## Local By Design

Encoding, camera analysis, reconstruction, and integrity verification run locally. No account or external server is required. Received files and captured videos remain in the app's local storage until you share or delete them.

QR-log Bridge is intended for technical file transfer. Successful performance depends on the display, camera, lighting, distance, selected stream speed, and payload size.


## Version history (last 5 releases)

### 1.2.6 — 2026-09-24

Version 1.2.6 expands the native optical transport and improves the complete receive, send, and recorded-video workflow.

What's New

- Added the V10 HC2D transport option for monochrome `288 x 288` matrix streams.
- Added V10 selection to live camera reception and recorded Video Decode.
- Added native V9 QR decoding with selectable automatic, native, and Vision-assisted modes.
- Added native sender support for V9 QR and V10 HC2D streams.
- Added iPad V9 `1x1` and `2x2` sender layouts with frame-timing presets, including `70 ms` for the iPad `2x2` profile.
- Improved automatic recording, video progress, cancellation, and post-processing feedback.

Stability And Performance

- Bounded expensive HC2D decoding to keep camera processing responsive.
- Improved camera-region handling and recovery for partially visible or moved streams.
- Improved frame-rate fallback for devices that do not support the requested rate.
- Improved handling of malformed QR geometry so invalid candidates are rejected without terminating scanning.
- Reset now clears all visible camera and transfer status, progress timing, quality feedback, and pending video-decoding state.
- Kept reconstruction, integrity validation, and file handling local to the device.

### 1.2.1 — 2026-09-16

## QR-log Bridge 1.2.1

Version 1.2.1 improves live QR scanning with a focused, adaptive camera search area. This makes scanning more responsive while preserving reliable recovery when a QR stream is not perfectly centered.

### What's New

- Added a visible central scan guide for faster, more focused live QR detection.
- The camera search area expands automatically when a stream is incomplete or moves outside the guide.
- Improved recovery of individual QR codes in 2x2 streams, including codes near the edge of the camera image.
- Improved scan behavior after device rotation while preserving live transfer tracking.
- Continued improvements to scanning stability and responsiveness for local V9 transfers, automatic recording, and Video Decode.

All encoding, scanning, reconstruction, and integrity verification remain local on the device.

### 1.2.0 — 2026-09-15

Version 1.2.0 improves the reliability and responsiveness of high-throughput QR transfers, especially for larger V9 streams and automatic video capture.

### What's New

- Improved V9 repair-symbol selection for more reliable reconstruction of larger transfers within a stream cycle.
- Faster V9 reconstruction through optimized payload operations and additional recovery of buffered repair equations.
- More responsive live scanning through focused QR-region tracking, duplicate suppression, and throttled status updates.
- Automatic recording for compatible V9 streams now allows longer recommended capture windows, up to two minutes.
- Improved stability when repeatedly scanning, resetting, decoding, and handling larger transfers.
- Continued support for local sending, live 1x1 and 2x2 scanning, Video Decode, and compatible V5/V6 transfers.

All encoding, scanning, reconstruction, and integrity verification remain local on the device.

### 1.1.9 — 2026-08-18

## QR-log Bridge 1.1.9

Version 1.1.9 introduces local QR-stream sending directly from iPhone and iPad, adds the high-throughput V9 transfer profile, and improves live scanning performance and stability.

### What's New

- Send a file or photo directly from the app as a fullscreen animated QR stream.
- Choose between the established V6 profile and the new V9 profile for local sending.
- Adjust the V9 recovery overhead between 10% and 50%.
- Select stream timing from 20 to 60 FPS, including practical 50 ms, 30 FPS, and 60 FPS presets.
- Benefit from faster live recognition through bounded parallel decoding and focused QR tracking.
- Improved responsiveness when processing demanding live streams and recorded videos.
- More reliable resource handling during stream preparation, cancellation, reset, and repeated transfers.
- Continued support for live 2x2 scanning, automatic capture of compatible fast streams, Video Decode, and existing V5/V6 transfers.

All encoding, scanning, reconstruction, and integrity verification remain local on the device.

### 1.1.8 — 2026-08-05

Version `1.1.8` keeps V6 `2x2` as the normal transfer path and retains V5 compatibility. V7 fountain transfers are available as an opt-in capability. The release also makes combined-camera scanning safer, improves fast-stream recording and Video Decode responsiveness, and updates `2x2` scan and file management behavior.

## What's New

### V6 2x2 Transfers

- V6 `2x2` remains the normal/default QR transfer path.
- The receiver detects V6 streams, restores the original file name, and validates the reconstructed file with SHA-256.
- Existing protocol V5 streams remain supported.

### Optional V7 Fountain Transfers

- V7 is an opt-in capability for separately generated streams from a compatible C++/Metal encoder.
- V7 fountain coding can reconstruct a file from available frames without requiring the first frame or a complete replay.
- The app detects V7 automatically, reports fountain progress, restores the original file name, and validates the reconstructed file with SHA-256.

### Camera Selection And Frame Rate

- Combined Apple camera modes are preferred: `Dual Wide`, `Dual`, and `Triple`.
- `Dual Wide` is selected by default when supported; single-lens modes are fallback choices.
- Unsupported `60 FPS` formats fall back safely to a supported rate, including 30 FPS, instead of causing a camera failure.
- Preview rotation and camera reconfiguration are handled more defensively.

### Automatic Video Capture And Video Decode

- Fast QR streams with video hints can start recording automatically for the calculated transfer duration.
- Captured videos are stored locally under Captured Videos, can be saved to Photos, and start Video Decode automatically.
- Video Decode discovers useful frames quickly, processes validation and assembly away from the UI thread, batches live results, and keeps controls responsive.
- Video Decode accepts recordings imported from Photos or Files and provides cancellation and early feedback for non-QR videos.

### 2x2 Scan Quality And File Management

- The app starts in `2x2` QR mode and can decode up to four logical QR codes per camera frame.
- Progress and scan-quality feedback reflect the QR codes actually decoded.
- Received files and captured videos can be opened, shared, deleted individually, or removed with `Delete all`.
- Reconstructed files retain their original file extension.

## App Store Connect Text

QR-log Bridge 1.1.8 keeps V6 `2x2` as the normal offline QR transfer path and retains V5 compatibility. Optional V7 fountain transfers are supported with compatible C++/Metal-generated streams. The release also improves combined-camera selection, safe 30/60 FPS handling, automatic fast-stream recording, responsive Video Decode, `2x2` scan-quality feedback, and local file management.

## Suggested Test Focus

- Scan the website's V6 `sample.gif` and confirm filename restoration and SHA-256 validation.
- Test current V6 and legacy V5 streams for compatibility.
- Optionally test a separately generated V7 stream from a compatible C++/Metal encoder and confirm fountain progress and first-frame independence.
- Confirm `Dual Wide`, `Dual`, or `Triple` selection and safe 60-to-30 FPS fallback.
- Stress-test portrait/landscape rotation while scanning.
- Test automatic capture and Video Decode with the website's V6 `sample_video.gif`.
- Test Video Decode imports from Photos and Files, including Cancel and a normal non-QR video.
- Verify open, share, individual delete, `Delete all`, and Save to Photos behavior.

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## More apps by Roland Emrich

- [WCA Toolbox](https://appshunter.io/ios/app/wca-toolbox/id6791452658)

All apps by Roland Emrich: https://appshunter.io/developer/1887105143

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-29.*