Comparison

Private Transcriber Offline vs Stardust Recorder

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

Stardust Recorder

Features
Read full description

Stardust Recorder is a private voice transcription app that runs entirely on your iPhone. Your recordings, transcripts, and summaries never leave your device. No accounts. No servers. Just you and your voice. WHY STARDUST We built Stardust because voice transcription apps shouldn't require sending your audio to someone else's servers. Your conversations, your interviews, your private thoughts — these belong to you. Stardust uses on-device machine learning to transcribe in 99+ languages, generate summaries with Apple Intelligence, and extract action items from any recording. Everything happens on your phone's processor. Nothing is uploaded. KEY FEATURES · Whisper transcription running locally on your iPhone — no cloud · Apple Intelligence summaries generated on the Neural Engine · 99+ languages with auto-detect (Stardust Pro adds explicit language picker for 22 languages) · On-device encryption (ChaCha20-Poly1305) for every recording · Encryption keys stored in iOS Keychain — never in iCloud · Tag and search across your library · Export to text, Markdown, PDF, DOCX, JSON, or directly to Apple Notes · Real-time waveform visualization during recording · Scrub and replay with audio controls · Action items can be sent to Apple Reminders or Calendar PRIVACY BY DESIGN · No accounts, no sign-up, no email required · No analytics or tracking SDKs · No advertising · Your audio never leaves your device · Your transcripts never leave your device · Your summaries never leave your device · No servers receive your content — we don't have any FREE TIER · 15 recordings per 30-day period (recordings under 30 seconds don't count) · 30-minute maximum per recording · Whisper Base model with 99+ language auto-detect · Plain text export STARDUST PRO Unlock everything: · Unlimited recordings · No length limits · Whisper Tiny, Small, and Medium models · Explicit language picker (22 languages) · Audio file import · All export formats (Markdown, PDF, DOCX, JSON, Notes) · 5 additional themes · Cross-recording search · iCloud sync · Apple Watch quick-record Two purchase options: · Lifetime — one payment, forever · Monthly — auto-renewing subscription WHAT YOU NEED · iPhone running iOS 17 or later · Apple Intelligence requires an Apple Intelligence-capable device (iPhone 15 Pro, 16/16 Pro, or later) running a supported iOS version BUILT BY Stardust Recorder is built by Astir Technology, an indie studio in Sydney, Australia. We're committed to privacy, simplicity, and beautiful design. Questions, feedback, or feature requests? Email contact@astir.technology — we read every message. Welcome to Stardust. Privacy Policy: https://stardust-legal.vercel.app/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Private Transcriber Offline4 screens
Stardust Recorder4 screens

Verdict

The call

The clearest difference is in-app purchases: Private Transcriber Offline at none against Stardust Recorder's 2. Private Transcriber Offline also leads on iOS requirement (15.1 vs 17.0). On price, ads 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. Stardust Recorder sells 2 in-app purchases, starting at $1.99 per month. Private Transcriber Offline asks for nothing beyond the download.

Scorecard2 real differences · 7 level
Private Transcriber Offline versus Stardust Recorder: the parameters behind the verdict, then further details
ParameterPrivate Transcriber OfflineStardust Recorder
PriceFreeFree
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 5 months—
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPod — betteriPhone
Requires iOS15.1 — better17.0
Further details — not scored
Size42 MB147 MB
Age rating4+4+
DeveloperJoris VerhaegenAbrar Miah

In-app purchases

None

Private Transcriber Offline

No in-app purchases

2 purchases

Stardust Recorder

Subscriptions1
  • Stardust Pro$1.991 Month
One-time1
  • Stardust Pro$12.99

Questions

Is Private Transcriber Offline free?
Private Transcriber Offline is free to download, with no in-app purchases.
Is Stardust Recorder free?
Stardust Recorder is free to download, with in-app purchases available.
Do Private Transcriber Offline or Stardust Recorder have ads?
Neither Private Transcriber Offline nor Stardust Recorder shows ads.

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