OPQRcoder vs PCM Audio Recorder

Standard QR codes contain unused "padding" bytes after the encoded data. OPQR writes your image into those bytes — invisible to scanners, visible to eyes. Select an image or take a photo and generate code with any text.

Capture ideas, interviews, instruments, and field sound with control over the file you create. PCM Recorder shows a live waveform and input level while recording, along with elapsed time and an estimate of the recording time remaining. Choose from the formats and sample rates supported by your current microphone and audio route. RECORD WITH CONTROL • WAV, CAF, AIFF, and space-saving M4A output • 16-bit, 24-bit, 32-bit integer, and 32-bit float PCM options where supported • Mono or stereo recording based on the connected input • Built-in, wired, USB, and Bluetooth microphone selection • Microphone position, polar pattern, and hardware input gain controls when available KEEP THE TAKE SAFE • Background recording and a Live Activity for quick status checks • Free-space monitoring while you record • Safe stopping before storage or WAV container limits are reached • Recovery support for interrupted recordings EDIT NON-DESTRUCTIVELY • Visual waveform editor with precise trim points • Level adjustment, normalization, fade in, and fade out • Preview the current edit before export • Export an edited copy while preserving the original • Split a take or join compatible recordings YOUR FILES, YOUR WORKFLOW Recordings stay in the app's local storage unless you choose to share them. Rename and organize takes, share the original file, or access recordings from the Files app. No account is required. PCM Recorder is supported by advertising. EULA https://www.apple.com/legal/internet-services/itunes/dev/stdeula/