Audio/voice recording apps for Android

What's important when recording audio on my mobile device, especially voice? There are several features that define an audio recording app: - Support for various file types (like WAV, MP3, OGG and AAC) - Custom audio quality (bitrate/kbps, sample rate/frequency range in kHz, mono/stereo) - Options to automatically skip silence (customizable for dB and time) - Options for noise suppression - Options to start/stop recording hands-free (by voice, timer or button) - Optional save/discard dialog after recording - Custom filenames - Selectable output drive and folder - Dark mode - Visual feedback for the input signal - Built-in file manager (for performance reasons: less app swapping) Samsung Voice Recorder https://play.google.com/store/apps/details?id=com.sec.android.app.voicenote Lovely, minimalistic interface with MP3 quality presets, stereo recording option, call blocking, drive selection, and live waveform during recording. Voice Recorder (quality apps) https://play.google.com/store/apps/details?id=com.media.bestrecorder.audiorecorder Beautiful, plain interface with: save/discard pop-up after recording, live spectrum analyser (basic -- I prefer a waveform), custom microphone adjustment, WAV/MP3 file support, custom file names (I love that), custom recording quality (11/16/22/44 kHz, mono/stereo), custom drive and folder, prevent sleep/keep screen on option. It's ad supported with a paid option. Super Recorder https://play.google.com/store/apps/details?id=com.tianxingjian.superrecorder The feature-rich paid version looks promising, but the free version is basic: keep screen on option, save/discard pop-up after recording, several file formats (AAC, M4A, AMR, MP3 and WAV), custom audio quality (mono/stereo, sample rate, bit rate), custom drive and folder, live waveform. Smart Recorder (SmartMob) https://play.google.com/store/apps/details?id=com.andrwq.recorder This one ticks a lot of boxes. It's a nice, modern interface and features: custom sample rate, pause during calls, do not disturb mode, microphone adjustment, keep screen on option, custom filename, custom drive and folder, automatic and manual silence skipping. Drawbacks: no dialogue after recording. Bluetooth Voice Recorder (0alex) https://play.google.com/store/apps/details?id=com.kasitskyi.voicerecorder You're stuck with AAC recording at a fixed sample and bit rate, with a single option: 'Prefer bluetooth MIC'. Many recorders default to the built-in microphone of the device, without an option to choose. Although this app comes without any other features, it does provide recording the bluetooth microphone stream.