BlackBox vs ASR Voice Recorder: Which Android Recorder?
ASR Voice Recorder is a power-user Android recorder with six formats, recording profiles, skip silence, Bluetooth mic support and (in Pro) upload to almost any cloud. BlackBox focuses on recording in the background all day or on a schedule, on Android and iPhone, in hourly files that are transcribed on-device.
We make BlackBox, so read this as informed rather than neutral. Every ASRdetail below comes from its own store listing or help docs (linked in References); where a listing doesn't say, the table says so rather than guessing. Spot something out of date? Tell us.
BlackBox vs ASR: feature by feature
| Feature | BlackBox | ASR |
|---|---|---|
| Platforms | ✓iPhone and Android | ◐Android only |
| Keeps recording with the screen off | ✓Yes — screen off, in your pocket, in other apps | ✓Yes |
| Built for all-day (24/7) recording | ✓Yes — press record once and it runs all day | –No all-day mode described |
| Scheduled start and stop | ✓Yes — separate weekday and weekend windows | –"Auto start recording" listed; no schedule described |
| Splits long recordings into files automatically | ✓Yes — one file per hour, days auto-archived | –Not stated in listing |
| Recording length limit | ✓No app-imposed limit; runs while the OS allows | –Not stated in listing |
| Storage per hour of audio | ✓≈14.4 MB per hour | ◐Your choice of format, sample rate and bitrate |
| Recording format | ✓AAC, 32 kbps mono, 16 kHz (tuned for speech) | ✓MP3, WAV, OGG, FLAC, M4A, AMR |
| Works without an account | ✓No account | –Not stated in listing |
| Where your audio is kept | ✓On your phone; optional backup to your own Files / Drive folder | ◐On device; Pro uploads to Drive, Dropbox, OneDrive, Box, FTP, WebDAV |
| Transcription | ✓Yes — on-device, nothing uploaded | –Not stated in listing |
| Speaker labels | ✓Yes — on-device | –Not stated in listing |
| AI summaries | ✕No | –Not stated in listing |
| Works offline | ✓Yes — recording and transcription | –Not stated in listing |
| In-app lock (Face ID / passcode) | ✓Yes — Face ID, Touch ID or passcode | –Not stated in listing |
| Records phone calls | ✕No — records the room, not the call line | –Not stated in listing |
| Works with just your phone | ✓Yes — no extra device | ✓Yes |
✓ yes · ◐ partly or with conditions · ✕ no · – not stated in the listing. Background recording on any app runs only while iOS or Android allows it; a phone call takes the microphone from every recorder.
What ASR users complain about
Themes from 1–2★ Google Play reviews of ASR Voice Recorder we read in October 2026, paraphrased.
Recordings that don't save or won't play
The most repeated theme: the app appears to record, then the file is missing or won't play back.
Source: Google Play reviewsPaid features and billing
Some reviewers paid for a feature (skip silence, or call recording in older versions) and say it didn't work for them.
Source: Google Play reviewsBehaviour and file layout
Others report the app starting or staying open when they didn't expect it to, and dislike recordings being sorted into nested year/date folders.
Source: Google Play reviewsWhen to pick ASR instead
- You want full control of format, sample rate and bitrate, saved as recording profiles.
- You want automatic upload to Google Drive, Dropbox, OneDrive, Box, Yandex Disk, FTP, WebDAV or email (Pro).
- You want tags, notes while recording, a cutter, playback speed control and Wi-Fi transfer or casting.
- You record with a Bluetooth headset mic or want to listen while recording.
When BlackBox fits better
- You want it to record all day, or on weekday and weekend schedules, without starting it each time.
- You want the day split into hourly files and archived automatically.
- You want transcription on the phone, with nothing uploaded.
- You also use an iPhone, or want the library locked behind your fingerprint or a passcode.
Frequently asked questions
Can ASR Voice Recorder record on a schedule?
ASR's listing mentions "auto start recording" but doesn't describe recording at set times. BlackBox has a scheduled mode with separate weekday and weekend start and stop times.
Which is better for cloud backup?
ASR Pro uploads to far more destinations. BlackBox keeps audio on your phone and can optionally copy finished daily archives into your own Files or Drive folder.
Does ASR transcribe recordings?
Transcription isn't in ASR's Play listing. BlackBox transcribes on-device.
References
- ASR Voice Recorder — Google Play listing — NLL Apps, checked Oct 25, 2026
- ASR Voice Recorder — Google Play ratings and reviews — Google Play, checked Oct 25, 2026
- BlackBox features and FAQ — BlackBox
More comparisons
Go deeper
Try BlackBox next to ASR
Record all day or on a schedule, browse by the hour and transcribe on-device — no account, and your audio stays on your phone. Test it on your device first: background limits vary by phone.