A voice recorder that stays simple while recording at high quality. Live waveform, FFT and spectrogram while you record, AAC/WAV output, a library, playback, and transcription — all in one app. It is supported by ads: every feature is free, and there is nothing to buy.

Get the app

Android Get it on Google Play iOS Coming soon to the App Store

The iOS app is built differently from the Android one. See iOS support for what it does.

What it does

Formats: AAC (.m4a, LC/HE, 64–256 kbps) and WAV (PCM16)
Sample rates: 44.1k / 48k / 88.2k / 96k / 192k, falling back automatically when the device cannot do it
Mono or stereo, and a choice of input source (MIC / VOICE_RECOGNITION / VOICE_COMMUNICATION / UNPROCESSED)
Silence skipping with a threshold and minimum duration, fade in/out, automatic splitting and a maximum length
Recording continues in the background as a foreground service, with elapsed time, file name and input route in the notification
Visualisation: waveform, filled waveform and spectrogram, with FFT smoothing and a variable window size
Library: recordings listed with date, length and size, plus search, sorting, sharing, renaming and deleting
Playback built on Media3 — seeking, speed, looping and sharing
Transcription on the device, with partial results as it goes and text you can share
Routing and focus: Bluetooth microphones preferred, input device type shown, audio focus results made visible
One-tap recording from a home screen widget or shortcut

Settings you can change

Destination subfolder and file name prefix
Output format, AAC bitrate and profile
Noise suppression, echo cancellation, automatic gain, high-pass filter (0/60/80/120 Hz)
FFT smoothing and buffer mode (low / balanced / high)
Foreground service, audio focus, Bluetooth preference

Sharing and cloud

Share straight to other apps from the share sheet
Optional cloud export — a folder through the system file picker (SAF), Google Drive, Dropbox and similar

Ads and pricing

The app shows ads
No in-app purchases. Every feature is free

Requirements

Android 9 (API 28) or later
Some input sources, high sample rates and Bluetooth recording depend on the device and the audio route, and may be unavailable or fall back to something else

Permissions and why they are needed

Microphone (RECORD_AUDIO): to record
Notifications (POST_NOTIFICATIONS): to show that recording is in progress
Storage and media (READ_MEDIA_AUDIO and similar): to save, read and share files
Bluetooth (BLUETOOTH_CONNECT): to use an external microphone
Phone state (READ_PHONE_STATE): to react to incoming calls and keep recording stable
Audio settings (MODIFY_AUDIO_SETTINGS): to control input routing and audio processing
Network (INTERNET / ACCESS_NETWORK_STATE): for ads and cloud export

Worth knowing

Which sample rates work, whether stereo is possible, what UNPROCESSED actually does and how Bluetooth is routed all vary by device, OS version and the hardware you connect
Long recordings can be affected by battery saving settings; excluding the app from optimisation helps

Keywords

voice recorder, audio recorder, high quality recording, spectrogram, waveform, FFT, AAC, WAV, transcription, speech to text, meeting minutes, lecture, interview