PDFAuto vs PDF Studio
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PDFAuto
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PDFAuto - Local PDF AI assistant Transform how you interact with PDFs—100% locally on your device! PDFAuto uses advanced AI to analyze documents, answer questions, and unlock insights without uploading your files anywhere. Features: • AI-powered PDF analysis & comprehension • Real-time Q&A about your documents • Local processing for privacy protection • Support for all PDF formats From research papers to business reports, PDFAuto makes reading interactive. Download now and unlock intelligent document interaction!
PDF Studio
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Every PDF tool you need — 100% on your device. PDF Studio reads, edits, scans, converts, signs and protects PDFs with no account, no cloud upload and no tracking. Your files never leave your iPhone, iPad or Mac. And it's a one-time purchase — no subscription. SCAN & CREATE • Scan documents with automatic edge detection • Turn photos or typed text into clean PDFs • Make scans searchable with on-device OCR EDIT & ORGANIZE • Merge, split, reorder, rotate and delete pages • Compress to a target file size • Crop, add margins, page numbers and watermarks CONVERT • PDF to Word, plain text or images — and back FILL, SIGN & PROTECT • Fill forms and sign by hand or with a saved signature • Build fillable forms and extract form data to CSV • Password-protect, unlock and permanently redact • Certify & seal a document and verify it later — fully offline ON-DEVICE AI • Summarize, chat with and translate a PDF — nothing is uploaded MEASURE & MORE • Distance, area and angle with scale • Beautiful on iPhone, iPad and Mac, with iCloud sync for your own library WHY PDF STUDIO • Private by design — everything runs on your device • Pay once, own it forever — no subscription required • No ads, no account, no data collection PDF Studio Pro unlocks every tool with a single purchase or an optional subscription. Terms of Use (EULA): https://birsoftware.com/terms.html
Screenshots
Verdict
The clearest difference is in-app purchases: PDFAuto at none against PDF Studio's 2. On price, ads, device support and iOS requirement 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 $9.99 per year. PDFAuto asks for nothing beyond the download.
| Parameter | PDFAuto | PDF Studio |
|---|---|---|
| Price | Free | Free |
| Update frequency | — | Weekly |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad | iPhone, iPad, Mac — better |
| Requires iOS | 16.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 97 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | 敏锋 黄 | Birkan Aksoy |
In-app purchases
PDFAuto
No in-app purchases
PDF Studio
- PDF Studio Pro$9.991 Year
- PDF Studio Pro (Lifetime)$24.99









