XDA’s love letter to Google Keep this week put voice notes back in the conversation. Keep’s voice memos have quietly done the transcription-plus-audio combo for years, but the real explosion is on the app-store shelf where dedicated AI transcription apps have caught up to what desktop tools could do only two years ago. The best of them turn a five-minute walk-and-talk into a searchable, exportable brief before you’ve unlocked the front door. These are the seven we tested on a Pixel 9 with an average commute microphone and a couple of noisy background scenarios.
What to look for in an AI voice-note app
- On-device or cloud. On-device (Whisper, Google Recorder) keeps the audio private. Cloud (Otter, Notta) offers better accuracy for meetings.
- Speaker diarization. Separating who said what, essential for interviews and stand-ups.
- Language coverage. Not just English. Multilingual sessions and code-switching support.
- Editable transcript. Correct a misheard word once, and future references sync.
- Export options. Plain text, DOCX, SRT, and Markdown for downstream tools.
- Integration. Notion, Slack, Google Docs, Obsidian, or a plain webhook.
- Battery footprint. Long meetings shouldn’t kill the phone.
Quick comparison
| App | Best for | Free plan | Starting price/mo | Standout | Rating |
|---|---|---|---|---|---|
| Otter | Meeting notes with speaker labels | 300 min/mo | $8.33/mo Pro | Live transcription with meeting summary | 4.4 Play |
| Notta | Interviews and multilingual sessions | 120 min/mo | $8.25/mo Pro | 58 languages, in-app translation | 4.6 Play |
| Fireflies | Business meetings across Zoom, Meet, Teams | 800 min/mo | $10/mo Pro | Auto-join calendar meetings | 4.3 Play |
| Google Recorder | Fully on-device transcription | Yes | Free | On-device search, no cloud | 4.7 Play |
| Whisper Transcription | Open-source Whisper on your device | Free (open source) | Free | Local Whisper models, offline | 4.5 F-Droid |
| Speechnotes | Zero-friction dictation | Yes | Free | Chromebook keyboard shortcuts | 4.7 Play |
| Rev Voice Recorder | Human-accuracy transcription option | Yes | $9.99/mo (AI) or $1.99/min human | Human transcript upgrade | 4.5 Play |
1. Otter, best for meeting notes with speaker labels
Otter is the tool most product teams have already tried. Real-time transcription during a call, speaker diarization that assigns names once you train it, and a meeting summary that pulls decisions and action items into a clean brief. The Android app records local audio too, so you can catch a hallway conversation without opening a laptop.
Where it falls short: Free tier caps at 300 minutes per month. Otter is quiet about which model version generates the summary, so quality shifts under you.
Pricing: Free with 300 minutes/mo. Pro at $8.33/mo billed annually.
Download: Aptoide · Google Play
Bottom line: Otter is the safe default for anyone whose job includes recurring meetings. The summary feature alone earns the subscription.
2. Notta, best for interviews and multilingual sessions
Notta is where journalists and researchers land when they need transcripts that respect language switches. 58 languages including Japanese, Mandarin, Portuguese, Arabic, and Hindi, and the in-app translation flips a transcript into your working language without a copy-paste round trip.
Where it falls short: The free tier at 120 minutes/mo is thin. The higher-accuracy AI model is a Pro-only feature.
Pricing: Free with 120 minutes/mo. Pro at $8.25/mo billed annually.
Download: Aptoide · Google Play
Bottom line: Choose Notta when your voice notes and interviews cross languages. Nothing else on the list handles code-switching this cleanly.
3. Fireflies, best for business meetings across Zoom, Meet, Teams
Fireflies is designed around the calendar rather than the recorder. Sync a Google or Outlook calendar, and Fred (Fireflies’ bot) joins your Zoom, Meet, or Teams calls automatically. The mobile app is where you review the transcript, ask the AI to summarize, or search across every meeting for the moment a decision was made.
Where it falls short: Auto-join changes meeting dynamics. Some coworkers dislike a visible bot in the participant list.
Pricing: Free tier covers 800 minutes/mo. Pro at $10/mo billed annually.
Download: Aptoide · Google Play
Bottom line: Pick Fireflies if your meetings are the reason you want transcripts. It’s the least manual app in the roundup.
4. Google Recorder, best for fully on-device transcription
Google Recorder ships on Pixel devices and runs the entire transcription on-device. Audio never leaves the phone, transcripts are searchable across every past recording, and the app tags sounds (music, applause, laughter) alongside speech. For sensitive conversations, no cloud tool matches the privacy story.
Where it falls short: Pixel-first. Recorder works on other Android phones through the Play Store, but the on-device transcription only runs on Pixels with the Tensor chip.
Pricing: Free.
Download: Aptoide · Google Play
Bottom line: If you’re on a Pixel, install Recorder before anything else on this list. It’s the strongest privacy story available.
5. Whisper Transcription, best for open-source Whisper on your device
Whisper Transcription and similar OpenAI Whisper wrappers run a local Whisper model directly on Android. Accuracy tracks the base model you pick (small, medium, or large), and once a model is downloaded the app is fully offline. F-Droid variants exist for users who avoid the Play Store.
Where it falls short: Model download is large (500 MB and up for medium accuracy). Transcription of a long recording takes minutes on a mid-range phone.
Pricing: Free, open source. Base app is small, add-on models are separate downloads.
Bottom line: Pick a Whisper wrapper when you want offline transcription and don’t mind waiting a few minutes per session.
6. Speechnotes, best for zero-friction dictation
Speechnotes is the app for people who dictate more than they record. Open, tap the microphone, talk, and the text appears in real time. No account, no cloud storage of the raw audio, and shortcuts for punctuation and paragraph breaks that mean the transcript comes out formatted, not a wall of text.
Where it falls short: No speaker diarization, no meeting features. It’s dictation, not transcription.
Pricing: Free with ads. Ad-free unlock is a one-time in-app purchase.
Download: Aptoide · Google Play
Bottom line: Install Speechnotes as your quick-dictation tool. It’s fast, it’s free, and it stays out of your way.
7. Rev Voice Recorder, best for human-accuracy transcription option
Rev Voice Recorder doubles as the front end for Rev’s human transcription service. Record on the phone, tap Order Transcript, and choose between AI ($9.99/mo unlimited) or human ($1.99/minute). The human upgrade is what to reach for when a transcript will be published, for court records, thick accents, or noisy source audio where AI struggles.
Where it falls short: Human transcription cost adds up. AI accuracy is comparable to Otter or Notta.
Pricing: Free recorder app. AI transcription at $9.99/mo unlimited or $0.25/minute. Human transcript at $1.99/minute.
Download: Aptoide · Google Play
Bottom line: Use Rev when a specific transcript needs human-grade accuracy. Otherwise stay on Otter or Notta.
How to pick the right one
- If you’re on a Pixel and you value privacy: Google Recorder. On-device, searchable, and free.
- If you attend recurring meetings: Fireflies or Otter. Fireflies for hands-off calendar automation, Otter for the summary quality.
- If you interview people in multiple languages: Notta.
- If you want to dictate rather than record: Speechnotes.
- If offline matters more than speed: Whisper Transcription. Open source, no cloud, download the model once.
- If you’ll pay for guaranteed accuracy on a court transcript or a published quote: Rev’s human option.
- If you already have Google Keep: Keep’s voice notes cover most of the casual use case for free. Reach for the specialised tools when you need speaker labels, summaries, or offline.
FAQ
What is the best free voice-to-text app on Android? Google Recorder for Pixel users, Speechnotes for everyone else. Both are free forever without an ads-blocking upgrade being required for the core feature.
Can I transcribe voice notes offline? Yes. Google Recorder and Whisper Transcription wrappers both run the model on-device. Cloud tools (Otter, Notta, Fireflies) need a network connection.
Do these apps identify different speakers? Otter, Notta, Fireflies, and Google Recorder support speaker diarization. Speechnotes and basic Whisper wrappers do not.
How accurate is AI transcription in 2026? For clear English audio, cloud services hit 95%-98% accuracy. Multilingual sessions, thick accents, and heavy background noise drop to 85%-92%, which is where human transcription (Rev) still earns its price.
Are AI transcription services safe for private conversations? Google Recorder and on-device Whisper are the safest, since the audio never leaves the phone. Cloud services encrypt uploads and audit access, but the audio does live on the vendor’s servers. Read each app’s data retention policy before recording sensitive material.
