Comparison

Quick Subtitles vs PDF Studio

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

Head to head
About

Quick Subtitles

This app converts audio and video files into accurate text transcriptions and subtitle files directly on your device. It offers AI-powered cleanup for error correction and advanced transcript analysis for summaries and key takeaways. All processing is done locally for enhanced privacy.

Highlights
  • On-device transcription
  • Export as text or SRT
  • AI-powered cleanup
  • Transcript analysis (summaries, notes)
  • Transcription history
  • Editable transcripts
Features
Read full description

Quick Subtitles is a powerful, but simple app that transforms audio and video files into accurate text transcriptions and subtitle files, 100% on your own device. Just drag, drop, and done. Drop any audio or video file into the app and get a full transcription in seconds. Export as plain text or SRT subtitle files, ready for your favorite video editor. Two Speech Engines - Apple Speech Analyzer - Fast and accurate, built right into your device - NVIDIA Parakeet V3 - Up to 2x faster transcription on Apple Silicon (free download) AI-Powered Cleanup Transcriptions aren't always perfect. Use AI to find and fix errors with an inline review that shows you exactly what changed before you accept. Or turn on YOLO mode and let it fix everything automatically. Choose your AI: use the built-in Quick Subtitles AI included with Premium, or bring your own API key for Google Gemini or OpenAI. AI Transcript Analysis Go beyond transcription. Use AI to generate summaries, show notes, key takeaways, action items, or anything else with fully customizable prompts. Built for Your Workflow - Transcription history keeps all your past work organized - Editable transcripts so you can make corrections by hand - Real-time progress with words-per-second metrics Privacy First All transcription happens on your device. Your audio never leaves your iPhone or iPad. Requirements: iOS or iPadOS 26 and later. Speech recognition permission required. Privacy policy: https://birchtree.productions/apps/quick-subtitles/privacy.html Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

PDF Studio

This app offers a comprehensive suite of tools for managing PDF files on your iPhone. It allows you to edit, compress, convert, scan, protect, and organize your documents entirely on your device for maximum privacy.

Highlights
  • Edit and organize PDF pages
  • Convert PDF to Text, HTML, Excel, JPG, PNG, BMP
  • Compress PDF file size
  • Merge and split PDF documents
  • Scan documents with camera
  • Add password protection and signatures
  • Convert images to PDF
Features
Read full description

PDF Studio: PDF Converter is your complete PDF editor, scanner, and file converter for iPhone. It brings all the essential PDF tools together in one fast, simple, and powerful app. Whether you want to compress, merge, split, convert, protect, organize, or scan documents, PDF Studio makes it easy. Everything is processed entirely on your device, ensuring complete privacy with no internet required. PDF Studio includes every major tool you need: • PDF Editor – Modify and organize your PDF pages • PDF Converter – Convert PDF to Text, HTML, Excel (CSV), JPG, PNG, BMP • Compress PDF – Reduce file size while maintaining quality • Merge PDF – Combine multiple PDFs into a single file • Split PDF – Separate pages or create new documents • Image to PDF – Turn photos and scans into professional PDFs • PDF Scanner – Scan documents using your camera • PDF Reader – Fast and smooth PDF viewing • Protect PDF – Add password protection • Unlock PDF – Remove existing passwords • Sign PDF – Add your handwritten signature • Watermark PDF – Insert custom text or image watermarks • Remove Pages – Instantly delete pages • Extract Pages – Save selected pages as a new PDF • Add Page – Insert blank or image-based pages • Rearrange PDF – Easily reorder pages • Rotate PDF – Rotate one or multiple pages • Crop PDF – Trim unwanted areas • Page Numbers – Add customizable numbering • PDF to Image – Export pages to JPG, PNG, or BMP • Image Conversion – Convert images to PNG, JPG, or BMP • Create ZIP – Compress multiple files into a ZIP archive • Extract ZIP – Open and extract ZIP files Advanced conversion tools include: • PDF to Text for easy copying • PDF to HTML for web-friendly formatting • PDF to Excel (CSV) for data extraction • PDF to JPG, PNG, BMP for high-quality image export • PNG, JPG, BMP to PDF for easy document creation This makes PDF Studio ideal for business, schoolwork, office documents, scanned files, photos, receipts, and more. Why Choose PDF Studio: PDF Converter? • 100% Offline Processing – Files stay on your device • No Subscriptions – One-time purchase unlocks everything • Fast and Secure – No uploads, no servers, complete privacy • Easy to Use – Clean and intuitive design • Full Featured – Replace multiple PDF apps with one Perfect For • Students needing PDF notes, homework, and scanned pages • Professionals working with contracts, forms, and reports • Anyone who needs a fast, reliable, and private PDF editor and converter Supported Devices • iPhone

Screenshots

Quick Subtitles4 screens
PDF Studio4 screens

Verdict

The call

Quick Subtitles and PDF Studio both sit at 5.0 stars, but that hides the real split: 100% of PDF Studio's written reviews are positive against 33% of Quick Subtitles's. PDF Studio also leads on price (Free vs $39.99) and in-app purchases (none vs 1). Quick Subtitles's advantage is ads (none vs shown) and update cadence (every 2 weeks vs monthly). On rating, ratings volume and monetization model 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

PDF Studio is free to download; Quick Subtitles costs $39.99 up front. Quick Subtitles sells 1 one-off in-app purchase. PDF Studio asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Quick Subtitles against 5.0 for PDF Studio. Both are backed by a comparable volume of ratings — 4 and 2 respectively. Written reviews are what separate them: 33% of Quick Subtitles's written reviews are positive against 100% of PDF Studio's.

UpkeepUpdate frequency

Quick Subtitles ships an update every 2 weeks, PDF Studio monthly. The most recent releases landed on November 7, 2026 and November 5, 2026 respectively.

Scorecard7 real differences · 3 level
Quick Subtitles versus PDF Studio: the parameters behind the verdict, then further details
ParameterQuick SubtitlesPDF Studio
Price$39.99Free — better
Rating5.0 (4 ratings)5.0 (2 ratings)
Positive reviews33.3% of reviews100.0% of reviews — better
Number of ratings4 — better2
Update frequencyEvery 2 weeks — betterMonthly
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, Mac — betteriPhone
Requires iOS26.017.0 — better
Further details — not scored
Size40 MB46 MB
Age rating4+4+
DeveloperMatt BirchlerAsha Vaghasiya

Customer experience

Quick Subtitles

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

PDF Studio

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Quick Subtitles

One-time1
  • Premium$24.99
None

PDF Studio

No in-app purchases

Questions

Is Quick Subtitles free?
Quick Subtitles costs $39.99, and also offers in-app purchases.
Is PDF Studio free?
PDF Studio is free to download, with no in-app purchases.
Which has better reviews, Quick Subtitles or PDF Studio?
Quick Subtitles and PDF Studio are both rated 5.0 out of 5 on the App Store, from 4 and 2 ratings respectively.
Do Quick Subtitles or PDF Studio have ads?
PDF Studio shows ads; Quick Subtitles does not.
Which is updated more often, Quick Subtitles or PDF Studio?
Quick Subtitles ships an update every 2 weeks, and PDF Studio monthly. Most recently, Quick Subtitles was updated on November 7, 2026 and PDF Studio on November 5, 2026.

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