Comparison

Private Transcriber Offline vs Whisper文字起こし

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

Head to head
About

Private Transcriber Offline

Transform audio and video into text with complete privacy. This app processes all transcriptions locally on your device using advanced AI, requiring no internet connection and sending no data to servers. It supports over 100 languages and offers multiple export formats.

Highlights
  • 100% Private & Offline processing
  • Live audio recording and transcription
  • Import and transcribe existing audio/video files
  • Support for over 100 languages
  • Multiple export formats (TXT, SRT, VTT, CSV)
  • High accuracy powered by OpenAI's Whisper AI
  • Multiple model options for speed/accuracy balance
Features
Read full description

Turn audio and video into text privately, directly on your device. Private Transcriber is an offline transcription app for interviews, meetings, lectures, voice memos, and personal notes. Choose a Whisper model, import an audio or video file, and get a searchable transcript without uploading your recording to a cloud service. FEATURES • On-device transcription with Whisper models • Works offline after the model is downloaded • Import audio and video files from Files and Photos • Import an audio file from a direct URL • Choose the model and spoken language for each transcription • Review transcripts with timestamps and audio playback • Export transcripts as TXT, SRT, VTT, or CSV • All audio and transcript data is stored locally on your device Private Transcriber is built for conversations that should stay private. Your recordings are processed on your device, so you remain in control of your data.

About

Whisper文字起こし

Features
Read full description

録音も動画も、iPhoneの中だけで文字起こし。ネット接続なしで使えます。 音声は外部サーバーに送信しないので、会議・講義・取材の録音も安心。 完全無料・広告なし・アプリ内課金なし。SRT字幕やテキストで書き出せます。 オープンソースの音声認識モデル Whisper(whisper.cpp)を iPhone 上で動かしています。 【主な機能】 ・マイク録音の文字起こし ・音声・動画ファイルのインポート(m4a / wav / mp3 / mp4 / mov など) ・多言語(日本語、英語、中国語ほか設定画面の言語一覧) ・履歴の保存・検索・お気に入り ・txt / json / csv / srt へのエクスポート、共有 【オフラインについて】 初回起動時に Whisper モデルを Hugging Face からダウンロードします(Base 既定で約142MB)。ダウンロード完了後、文字起こし処理は端末内のみで完結し、音声・文字起こし結果を開発者サーバーへ送信しません。 【必要環境】 ・iOS 17.0 以降の実機(Simulator 非対応) ・マイク利用時は許可が必要です 広告・トラッキング・アプリ内課金はありません。 【免責】文字起こし結果は AI による参考情報であり、正確性は保証されません。重要な用途では必ず内容をご確認ください。 https://porarrirr.github.io/offline-whisper-transcriber-ios/disclaimer.html 本アプリはOpenAIと提携・承認関係にはありません。

Screenshots

Private Transcriber Offline4 screens
Whisper文字起こし4 screens

Verdict

The call

The clearest difference is update cadence: Whisper文字起こし at every 3 days against Private Transcriber Offline's every 5 months. Private Transcriber Offline's advantage is iOS requirement (15.1 vs 17.0). On price, ads, 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.

UpkeepUpdate frequency

Private Transcriber Offline ships an update every 5 months, Whisper文字起こし every 3 days. The most recent releases landed on October 31, 2026 and November 10, 2026 respectively.

Scorecard2 real differences · 7 level
Private Transcriber Offline versus Whisper文字起こし: the parameters behind the verdict, then further details
ParameterPrivate Transcriber OfflineWhisper文字起こし
PriceFreeFree
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 5 monthsEvery 3 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.1 — better17.0
Further details — not scored
Size42 MB7 MB
Age rating4+4+
DeveloperJoris Verhaegenharuto nomura

In-app purchases

None

Private Transcriber Offline

No in-app purchases

None

Whisper文字起こし

No in-app purchases

Questions

Is Private Transcriber Offline free?
Private Transcriber Offline is free to download, with no in-app purchases.
Is Whisper文字起こし free?
Whisper文字起こし is free to download, with no in-app purchases.
Do Private Transcriber Offline or Whisper文字起こし have ads?
Neither Private Transcriber Offline nor Whisper文字起こし shows ads.
Which is updated more often, Private Transcriber Offline or Whisper文字起こし?
Private Transcriber Offline ships an update every 5 months, and Whisper文字起こし every 3 days. Most recently, Private Transcriber Offline was updated on October 31, 2026 and Whisper文字起こし on November 10, 2026.

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