Comparison

AIボイスレコーダー vs Lightning Notes

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

AIボイスレコーダー

Features
Read full description

会議の録音から議事録の作成まで、これ一つでスマートに完結。 本アプリは、ビジネスパーソンのための高機能AIボイスレコーダーです。 さらに、録音した音声はAIが高精度で文字起こし。 無音部分を自動でスキップするため、長時間の録音でも一瞬でテキスト化が完了します。 長時間の会議音声を聞き直す無駄な時間はもう必要ありません。 【主な機能・特徴】 ・無音スキップAI解析:会議中の沈黙を自動でカット。発話区間だけを抽出するため、文字起こしが極めてスムーズです。 ・豊富な出力フォーマット:解析したテキストは、そのままPDFレポートやCSVファイルとして書き出し、チームへ即座に共有できます。 ・バッテリー節約モード:録音中は画面を極限まで暗くし、パスコードロックをかけることで誤操作を防ぎつつバッテリーを節約します。 ・5ヶ国語対応:日本語だけでなく、英語や中国語、韓国語、スペイン語などの音声認識にも対応。 ・完全無料:すべてのプロフェッショナル機能を、追加費用なしで使い放題。 ・高音質録音対応:重要な会議では無圧縮の高音質(PCM)での録音も選択可能です。 あなたの毎日の業務効率を、劇的に向上させます。

About

Lightning Notes

Features
Read full description

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. ■ Speaker Summaries & Person Profiles (Cloud AI) See each participant's role, key points, and behavior in the meeting. Across up to 30 past meetings, AI builds a profile of a person's role, communication style, and projects. ■ Action Items, Extracted (Cloud AI) Cloud AI meeting notes also pull each person's action items into the Tasks tab. Set yourself among your people to see your tasks apart from everyone else's. Each task keeps the line it came from and links back to its meeting; move it from Needs confirmation to In progress to Completed, also right on the meeting's screen. Tasks stay on your device. ■ 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". An on-device language model checks each fix reads naturally in context, so unrelated passages are left alone. Fixes can be reviewed, reverted one at a time, and applied 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. ------------------------ 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.

Screenshots

AIボイスレコーダー3 screens
Lightning Notes4 screens

Verdict

The call

The clearest difference is ads: AIボイスレコーダー at none against Lightning Notes's shown. AIボイスレコーダー also leads on iOS requirement (17.6 vs 26.0). On price, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard2 real differences · 4 level
AIボイスレコーダー versus Lightning Notes: the parameters behind the verdict, then further details
ParameterAIボイスレコーダーLightning Notes
PriceFreeFree
Update frequency—Every 5 days
AdsNo — betterYes
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.6 — better26.0
Further details — not scored
Size8 MB56 MB
Age rating4+4+
DeveloperYUKI MIURAChihiro Otsuki

In-app purchases

None

AIボイスレコーダー

No in-app purchases

None

Lightning Notes

No in-app purchases

Questions

Is AIボイスレコーダー free?
AIボイスレコーダー is free to download, with no in-app purchases.
Is Lightning Notes free?
Lightning Notes is free to download, with no in-app purchases.
Do AIボイスレコーダー or Lightning Notes have ads?
Lightning Notes shows ads; AIボイスレコーダー does not.

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