WhisperDirect is an audio transcription and summarization app built around the high accuracy of the Whisper API. In addition to the Whisper API using your own API key, it includes on-device features such as Apple Speech, Speaker Diarization (NVIDIA Nemotron 3), and OCR. For summaries and meeting minutes, choose from OpenAI / Gemini / OpenAI-compatible LLMs, using APIs only as much as you need. One-time purchase — no subscription.
Pricing & Experience
・7-day free trial included
・On-device features (Apple Speech / Speaker Diarization / OCR) are free, no API key required
・Whisper API and LLM (Summary / Minutes) are billed by each provider on a usage basis
(The app does not charge for API usage)
Cost Estimates
・Whisper API: ~$0.006/min (1 hour ≈ $0.36)
・Segment re-transcription (gpt-transcribe): ~$0.0045/min
・On-device features incur no API fees
・Actual costs vary with audio length and settings
・OpenAI API pricing: https://openai.com/api/pricing
・Gemini / custom providers follow each service's pricing
・Locally-run custom providers (e.g. Ollama) incur no API fees
Transcription Engines
・Whisper API (OpenAI): high accuracy with your own API key
・Apple Speech (On-device): no API key, iOS 26+
・Switchable from settings
Models for Summary & Minutes
・Choose from OpenAI / Gemini / Custom
- OpenAI: GPT-6 Luna / GPT-5 nano / GPT-5 mini / GPT-4.1 nano / GPT-4.1 mini
- Gemini: requires Google AI Studio API key (gemini-*-pro / flash / gemma)
- Custom: OpenAI-compatible APIs (Ollama / LM Studio / self-hosted)
・Processing costs only a few cents even for several-thousand-character text
Key Features
・Record with the mic button and transcribe on the spot
・Live Preview: real-time transcription while recording (on-device)
・Recording display mode switch (Waveform / Simple)
・Import audio files → transcribe (Share Sheet)
・Video import (audio extracted and compressed)
・Transcript auto-highlights with playback position
・Insert timeline markers at any interval (5-sec steps)
・Generate summaries from transcripts
・OCR from images (batch supported, no API fees)
・Generate meeting minutes (prompts editable)
・Re-transcribe misrecognized segments in the editor
(Uses OpenAI gpt-transcribe; billed by usage)
・Re-transcribe specific items with Whisper API, even while using Apple Speech
・Speaker diarization (NVIDIA Nemotron 3, on-device)
・Export: Audio / Text / Summary / Minutes / VTT / SRT
・Auto-post to Slack
・Webhook integration (Discord, Slack, n8n, etc.)
・Google Drive auto-backup
・Estimated cost display
・Fine-grained settings (LLM model, timeline interval, prompts)
Supported Formats
Audio: mp3, m4a, aac, wav, flac, ogg, opus, wma, amr, mpga, webm, aiff, caf
Video: mp4, mov, m4v, webm, mkv, avi, mpeg, mpg
Notes
・Whisper API requires an OpenAI API key
・On-device features work without an API key
・Prices, specs, and models may change per provider
Ratings & Reviews
This app hasn’t received enough ratings or reviews to display an overview.
New Features
- You can now manually send transcripts, summaries, and minutes to Webhook / Slack / Google Drive from the detail screen.
- The send menu only shows services that are enabled.
- Added recording_id to the Webhook payload.
Improvements
- Improved overall usability in the Settings screen.
- Fixed an issue where changes were delayed on the detail screen.
Version 1.3.5
The developer, koji ozono, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
koji ozono
Size
53.5 MB
Category
Productivity
Compatibility
Requires iOS 18.0 or later.
iPhone Requires iOS 18.0 or later.
iPad Requires iPadOS 18.0 or later.
Mac Requires macOS 15.0 or later and a Mac with Apple M1 chip or later.