# Lightning Notes - AI Recorder — AI Meeting Notes & Speaker ID > AI Meeting Notes & Speaker ID (iPhone/iPad app by Chihiro Otsuki.) - Source: https://appshunter.io/ios/app/lightning-notes-ai-recorder/id6761365061 (this page in markdown: same URL + `.md`) - Developer: [Chihiro Otsuki](https://appshunter.io/developer/1879208814) - Category: Productivity, Business - Price: Free - Age rating: 4+ - Requires: iOS 26.0 · 55 MB - Languages: American English, Japanese, Korean - Released: 2026-04-19 - Data updated: 2026-08-23 - User reviews in markdown: https://appshunter.io/ios/app/lightning-notes-ai-recorder/id6761365061/reviews.md ## What is Lightning Notes? 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. ------------------------ Key Features ------------------------ ■ 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 ------------------------ Requirements ------------------------ · 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 --- Take back your meetings. No subscription required. ## Version history (last 5 releases) ### 1.22.3 — 2026-08-22 We have updated the app. 【New Features】 ・Added Korean dictionary correction. ・Korean correction models can now be downloaded from Settings. 【Improvements】 ・Improved license information for the Japanese, English, and Korean AI models and dictionary data. ・Improved the safety of Korean spelling-variation and particle correction. Registered terms can now be corrected more accurately in Korean transcriptions. Please share your feedback through Ratings & Reviews on the App Store. ### 1.22.2 — 2026-08-15 We have updated the app. 【Improvements】 ・Reorganized the internal structure of recording, file import, and speaker separation so that future features and fixes can be delivered more safely. There are no changes to how the app behaves or looks. Please share your feedback through Ratings & Reviews on the App Store. ### 1.22.0 — 2026-08-08 We have updated the app. 【Improvements and Fixes】 ・Improved stability from recording start through pause, stop, and post-processing. ・Fixed an issue where the audio level meter shown on the Lock Screen or Dynamic Island could remain still during recording. ・Improved the stability of reflecting changes in the recorded audio level in the Live Activity. ・Improved behavior when cancelling a recording, returning from the background, or resuming from a Live Activity. ・Improved recovery of interrupted transcriptions after restarting the app and when multiple processing tasks are queued. Recording and transcription are now more stable from start to finish. Thank you for using the app. Please share your feedback through Ratings & Reviews on the App Store. ### 1.21.4 — 2026-08-03 We have updated the app. 【Improvements】 ・The name field is now focused automatically when adding a new speaker. ・The canonical term field is now focused automatically when adding a new dictionary term. You can start entering speakers and specialized terms with fewer steps. Thank you for using the app. Please share your feedback through Ratings & Reviews on the App Store. ### 1.21.3 — 2026-08-02 Lightning Notes has been updated. [Improved] · Further improved speaker diarization accuracy. Words near a speaker change are now assigned more precisely. · Further improved stability when diarizing long (1+ hour) recordings, reducing rare crashes. · Fixed an issue where the "processing" indicator could remain on screen after deleting a meeting that was still being imported. · Minor internal improvements. Thank you for using Lightning Notes. Please share your feedback via "Ratings & Reviews" on the App Store. ## Apps similar to Lightning Notes | App | Rating | Price | Category | | --- | --- | --- | --- | | [シンプル録音文字起こし](https://appshunter.io/ios/app/id6762348161) | — | $19.99 | Productivity | | [文字起こしメーカー](https://appshunter.io/ios/app/id6761624306) | — | Free | Productivity | | [MojiOkoshi: Voice to Text & AI](https://appshunter.io/ios/app/mojiokoshi-voice-to-text-and-ai/id6754194371) | — | Free | Productivity | | [Voice Memo_AI Meeting Record](https://appshunter.io/ios/app/voice-memo-ai-meeting-record/id6755423591) | — | Free | Productivity | | [VoiLog](https://appshunter.io/ios/app/voilog/id6768143472) | — | Free | Productivity | | [swift文字起こし](https://appshunter.io/ios/app/swift/id6743728982) | — | Free | Productivity | ## More apps by Chihiro Otsuki - [NextDo - Todo & Habit Tracker](https://appshunter.io/ios/app/nextdo-todo-and-habit-tracker/id6759515731) All apps by Chihiro Otsuki: https://appshunter.io/developer/1879208814 ## Related topics [chihiros](https://appshunter.io/ios/topics/chihiros) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-23.*