AutoMemo: Japanese transcription AI from Sourcenext that records meetings via web app, smartphone app, or dedicated voice recorders, then transcribes, summarizes, and shares. Whisperstream: Whisperstream is a privacy-focused Windows dictation app that turns speech into text entirely on-device, with no cloud upload. Below, they line up on price, capture method, and how each fits a real meeting stack.
How Hosiqo compares and tests toolsFinal recommendation
Shortlist AutoMemo when capturing and transcribing in-person business meetings matters most, and Whisperstream when transcribing imported audio recordings privately on-device matters most. Trial each on a few real meetings before you commit — the better fit usually shows fast.
Japanese transcription AI from Sourcenext that records meetings via web app, smartphone app, or dedicated voice recorders, then transcribes, summarizes, and shares.
Whisperstream is a privacy-focused Windows dictation app that turns speech into text entirely on-device, with no cloud upload.
AutoMemo (オートメモ) is a transcription AI developed, sold, and supported by Sourcenext Corporation in Japan. It is built around a multi-surface approach: users can capture audio through a web browser app, a dedicated smartphone app, or standalone hardware voice recorders (the AutoMemo S and AutoMemo R devices), and the captured audio is automatically converted to text. The service uses a Whisper-based speech recognition engine, automatically inserts punctuation, removes filler words such as Japanese hesitation sounds, and recognizes speakers so that transcription results are divided into speaker blocks. On top of the transcript, AutoMemo can automatically generate summaries and extract to-do items and deadlines, and it has added features such as AI-generated titles for recordings. Audio and transcripts are saved to the cloud for later editing, searching, and sharing. AutoMemo positions itself for business meetings, interviews, and lecture capture in Japanese-language workflows, and offers a limited free transcription allowance with paid plans for higher usage. It remains actively developed and marketed in 2025/2026. Pricing varies by plan. Check the official website for current pricing.
Best suited for
Whisperstream is a downloadable Windows desktop application from Lanreal Technologies Inc. that converts speech to text using push-to-talk dictation. Transcription runs entirely locally on the user's PC via the NVIDIA Parakeet model, so audio is never uploaded to the cloud and no account is tied to the user's voice. It works across any application without add-ins or setup, inserting dictated text directly into tools such as Outlook, Gmail, Slack, VS Code, browsers, and Claude Code. Beyond live dictation, it can import and transcribe existing audio recordings, and it keeps a searchable transcript history with audio replay, encrypted on the device. Additional features include AI cleanup that tidies spoken input, a custom vocabulary for names, jargon, and acronyms, per-app custom AI prompts, support for 25 languages, global keyboard shortcuts, and full offline operation. It requires Windows 10 or 11 (64-bit) with at least 8GB RAM. It targets professionals and privacy-conscious knowledge workers who want fast, local voice input rather than typing.
Best suited for
AutoMemo is a free tier with paid upgrades (freemium); Whisperstream is a free tier with paid upgrades (paid). Always confirm current pricing on each vendor's site before buying.
| Feature | AutoMemo | Whisperstream |
|---|---|---|
| Core capability | Records via web app, smartphone app, or dedicated voice recorder hardware | Local, on-device speech-to-text using the NVIDIA Parakeet model (no cloud upload) |
| Standout feature | Whisper-based speech-to-text with automatic punctuation | Push-to-talk dictation that inserts text into any application |
| Team usage | Speaker recognition that splits transcripts into per-speaker blocks | Audio file import for transcribing existing recordings |
| Integrations | AI summaries with to-do and deadline extraction | Searchable, encrypted transcript history with audio replay |
| Languages & capture | Automatic filler-word removal | AI cleanup plus per-app custom AI prompts and custom vocabulary |
| Best-fit workflow | Cloud storage with editing, search, and sharing | 25-language support with full offline operation |
AutoMemo
Choose AutoMemo if you need capturing and transcribing in-person business meetings — strengths include multiple capture options including standalone hardware recorders.
Whisperstream
Choose Whisperstream if you need dictating emails, messages, and documents faster than typing — strengths include fully local processing keeps audio private and works offline.
AutoMemo
Whisperstream
It depends on your workflow. AutoMemo is strong for capturing and transcribing in-person business meetings, while Whisperstream is strong for dictating emails, messages, and documents faster than typing. Both transcribe and summarize meetings.
AutoMemo is a free tier with paid upgrades and Whisperstream is a free tier with paid upgrades. Check each vendor's pricing page for the latest plans and free-tier limits.
Sure. Running both makes sense when their strengths don't overlap and the budget allows.
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