Spy PDF vs PDF Studio
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Spy PDF
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Spy PDF β Fast & Clean PDF Viewer No need to install heavy, complex apps just to view a single PDF. With Spy PDF, simply select your file and it opens instantly. Thatβs it. [Key Features] - Instant Launch β Open PDF files immediately with a single tap. - Recent Files β Access your frequently viewed files right from the list. - Smooth Scrolling β Read naturally with fluid page transitions. - Landscape & Portrait Support β Optimized for any orientation you prefer. - Error-Free Rendering β Stable performance with corrupted file alerts. [Recommended For] - Anyone who wants to open PDF attachments from emails instantly. - Professionals and students who frequently read contracts, resumes, or research papers. - Users who want a lightweight viewer without bloated, unnecessary features. - Those who want to quickly find older files from a recent history list. No accounts. No sign-ins. Just open and read. With Spy PDF, viewing PDFs is no longer a hassle.
PDF Studio
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PDF Studio is your private, all-in-one PDF toolkit β over 70 tools that run entirely on your device. No account, no tracking, no uploads. SCAN & CREATE β’ Scan documents with automatic edge detection β’ Turn photos or typed text into clean PDFs EDIT & ORGANIZE β’ Merge, split, reorder, rotate and delete pages β’ Compress to shrink file size β even to a target limit β’ Crop, resize, add margins and page numbers CONVERT β’ PDF to Word, plain text or images β’ Make scanned pages searchable with on-device OCR SIGN & PROTECT β’ Fill forms and sign documents by hand β’ Password-protect, remove passwords and redact sensitive info β’ Add watermarks, stamps and headers Beautiful on iPhone, iPad and Mac, with iCloud sync to keep your library on every device. Find any tool instantly with search, favorites and recents. PDF Studio Pro unlocks every tool with a single purchase or subscription. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Spy PDF at none against PDF Studio's 2. Spy PDF also leads on iOS requirement (13.0 vs 17.0). On price, ads and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. PDF Studio sells 2 in-app purchases, starting at $9.99 per year. Spy PDF asks for nothing beyond the download.
| Parameter | Spy PDF | PDF Studio |
|---|---|---|
| Price | Free | Free |
| Update frequency | β | Every 9 days |
| Ads | No | No |
| In-app purchases | No β better | Yes |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 13.0 β better | 17.0 |
| Further details β not scored | ||
| Size | 32 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | JAEMIN LEE | Birkan Aksoy |
In-app purchases
Spy PDF
No in-app purchases
PDF Studio
- PDF Studio Pro$9.991 Year
- PDF Studio Pro (Lifetime)$24.99








