PDF Studio vs Focus Lens
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PDF Studio
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PDF Studio turns your iPhone and iPad into a complete PDF office. Convert PDF to Word, sign and fill forms, scan paper, compress big files and edit the text inside a PDF – then see the finished result before you save or share it. USE IT WHEN YOU NEED TO • Sign a contract or permission slip someone just emailed you • Turn a PDF into an editable Word document, or a Word file into a PDF • Shrink a large PDF so it fits as an email attachment • Scan receipts, notes or forms and keep them as one searchable PDF • Fix a typo in a PDF you received without asking for the original file CONVERT • PDF to Word, Excel or PowerPoint • Word, Excel or PowerPoint to PDF • Photos to PDF: up to 50 images, A4 or Letter, portrait or landscape • PDF to JPG or PNG images, by page or as one long image • PDF to plain text you can edit before saving • Text, a web page or a blank page to a new PDF SIGN & FILL • Draw your signature, capture it with the camera or import it from a photo • Clean up the background, change the ink color and keep a signature library • Fill in form fields: text, checkboxes, radio buttons and choice lists • Add text and today's date anywhere on the page EDIT & ANNOTATE • Edit the original text of a PDF: font, size, bold, color and alignment • Highlight, underline or strike through text • Draw with pen and marker, with Apple Pencil support • Add shapes, stickers, comments and images • Undo and redo every change ORGANIZE PAGES & FILES • Combine 2 to 20 PDFs and images into one file • Split a PDF, extract pages, reorder, rotate, delete or insert pages • Compress PDFs with three quality levels and a size estimate before you start • Add or remove a password and add a text or image watermark • Restore an earlier version after a big change SCAN & SEARCH • Scan paper documents with the camera, up to 50 pages at a time • Crop, rotate and filter each page • Make scanned pages searchable with on-device text recognition ASK & SUMMARIZE • Ask questions about a document or get a quick summary • Runs on device with Apple Intelligence on supported devices; otherwise it uses a server only after you agree WORKS WHERE YOU ARE • Share sheet actions: sign, compress or convert a file straight from Mail, Files or Safari • Shortcuts and Siri for your everyday PDF jobs • iCloud Drive sync across your devices • Wi-Fi transfer to your computer, protected by a one-time PIN • iPad: sidebar, Split View, drag and drop and keyboard shortcuts • Light and dark mode, 19 app languages SUPPORTED FILES Open PDF, Word (DOC, DOCX), Excel (XLS, XLSX), PowerPoint (PPT, PPTX), TXT and images (JPG, PNG, HEIC). Save as PDF, DOCX, XLSX, PPTX, JPG, PNG or TXT. PRIVACY No account needed, no ads and no tracking. Scanning, compression, text recognition, signing and editing run on your device. Office conversions are processed on our server only after you agree, and the files are deleted after processing. Open a PDF and finish the job in a few taps. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://chuminhson.netlify.app/policy
Focus Lens
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Turn the text in a photo or screenshot into editable text you can use right away. Image OCR imports images from your library, recognizes text on device, then lets you copy the result or export a TXT file. It is useful for class notes, receipts, forms, chat screenshots, and everyday reference material. Key features: - Import multiple images from Photos - Recognize text on device - Review and select recognized text - Copy editable text in one tap - Export a TXT text file - Keep recent recognitions on device No account or purchase is required. Images and recognition history are stored locally on the device by default.
Screenshots
Verdict
The clearest difference is in-app purchases: Focus Lens at none against PDF Studio's 2. Focus Lens also leads on update cadence (weekly vs every 5 months). PDF Studio's advantage is iOS requirement (15.0 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
Both are free to download. PDF Studio sells 2 in-app purchases, starting at $7.99 per 7 days. Focus Lens asks for nothing beyond the download.
PDF Studio ships an update every 5 months, Focus Lens weekly. The most recent releases landed on October 28, 2026 and October 7, 2026 respectively.
| Parameter | PDF Studio | Focus Lens |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 months | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 34 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Chu Minh Son | 玉凤 崔 |
In-app purchases
PDF Studio
- PDF Studio Pro Weekly$7.997 Days
- PDF Studio Pro Yearly$39.991 Year
Focus Lens
No in-app purchases









