Lightning Notes - AI Recorder

Record. Transcribe. Summarize. All on your device.

Transcription and speaker separation run entirely on your iPhone — no audio ever leaves your device. Stop the recording and on-device AI works out who said what, producing a speaker-labeled transcript. Then choose local AI or Cloud AI to write the meeting notes. Supported by ads, with all core features available without a subscription.

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Key Features
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■ Accurate Transcription — On-Device
Apple's speech recognition engine processes your audio entirely on-device. Meetings, lectures, interviews — transcribed without sending audio anywhere, and reliable even for long recordings.

■ Automatic Speaker Separation
Speaker separation runs automatically on your iPhone once recording stops, identifying who said what across multi-participant conversations. Voice fingerprints are learned over time, so names get assigned automatically in later meetings. Manual editing is always available.

■ AI Meeting Notes — Your Choice of AI
· On-device AI: No internet required; nothing leaves your iPhone. Needs 6 GB RAM or more (iPhone 13 Pro and later).
· Cloud AI: DeepSeek V4-Flash via OpenRouter, streamed in real time. API data is not used for model training, and only Zero Data Retention (ZDR) endpoints are used, so the provider does not store your data to disk.

■ Per-Speaker Summary (Cloud AI)
A breakdown for each participant: role, key points raised, and behavior during the meeting. See who drove decisions and who needs follow-up.

■ Person Profiles (Cloud AI)
Cross-reference up to 30 past meetings featuring a person and generate an AI profile of their role, communication style, and project involvement.

■ Dictionary Correction (Custom Terms)
Register company names, product names, and jargon, and the app fixes where speech recognition misheard them — "Tower Electric" becomes "Towa Electric". Rather than swapping on sound alone, an on-device language model checks the replacement reads naturally in context, so unrelated passages are left alone. English and Japanese supported. Corrections are listed with before/after text, can be reverted one at a time, and apply retroactively to past meetings.

■ Audio & Video File Import
Import external audio or video recordings and run them through the same transcription and speaker separation pipeline.

■ Share & Export
Export as PDF, choosing which sections to include (summary, speaker summaries, transcript). Speaker colors and tables are preserved. Text and audio sharing are also supported.

■ Privacy-First Architecture
Transcription, speaker separation, and local summarization all run on-device. Cloud AI is opt-in — leave it off and no recording content ever leaves your iPhone.

■ Folder Organization
Organize meetings into folders by project, client, or topic.

■ Full-Text Search
Search titles, summaries, and transcripts. Find any meeting by keyword in seconds.

■ Edit Transcripts
Fix recognition errors directly in the app and save an accurate record.

■ Control From the Lock Screen
Elapsed time appears on the Lock Screen and Dynamic Island while recording, with pause, resume, and stop right there. Add the Control Center button to start recording without launching the app.

■ Backup & Restore
Export meetings, transcripts, and speaker data to a file and restore it on another device or after reinstalling. You keep the file; nothing goes to an external server.

■ Meeting Types
· Meeting: Multi-participant discussions
· Lecture / Seminar: One-to-many presentations or classes
· Interview: One-on-one or small group conversations

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Requirements
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· Transcription, speaker separation, file import: iPhone 12 or later (A14 chip), or iPad with M1 or later
· Local AI summarization: 6 GB RAM or more (iPhone 13 Pro, iPhone 14 series, iPhone 15 and later)
· Audio/video formats: WAV, M4A, MP3, MP4, and other common formats

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Take back your meetings. No subscription required.