StampDoc vs Stamp Studio
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
StampDoc
Easily sign PDFs and images, create custom digital stamps, and manage your documents securely from your iPhone or iPad. Streamline your workflow by going fully digital, eliminating the need for printing and scanning.
- Sign PDFs and images
- Create custom digital stamps
- Signature editor and scanner
- Import and reuse stamps
- Built-in PDF and image viewer
- Save and share signed files
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Do you need to sign documents, stamp PDFs, or add signatures to images directly from your iPhone or iPad? With StampDoc, your device becomes your digital signing tool. StampDoc helps you sign PDFs, create professional stamps, and manage your documents securely—all in one place. Forget about printing, scanning, or using complex software. Key Features Sign PDFs and Images: Add digital signatures to PDFs, photos, or images (JPG, PNG) with precision. Ideal for contracts, invoices, agreements, and more. Signature Editor: Create and personalize your signature. Choose thickness, color, and style, then save it for future use. Signature Scanner: Capture your handwritten signature using the camera or import from your gallery to convert it into a digital signature. Digital Stamp Creator: Design stamps—circular, square, or angled—with custom text, colors, and styles. Perfect for professionals who need official marks on their documents. Import and Reuse Stamps: Bring in existing stamps from your gallery or scan them to apply on any file. Built-in PDF and Image Viewer: Open and review your PDFs and images directly within the app. Save and Share: Export signed documents as high-quality PDFs or images, then share them instantly via email, cloud services, or messaging apps. With StampDoc you can Sign PDFs securely and professionally. Create digital signatures and stamps in seconds. Convert handwritten signatures into electronic ones. Manage, save, and share your signed files anytime. Streamline your workflow by going fully digital. Turn your iPhone or iPad into your mobile signing and stamping office. Download StampDoc today and simplify the way you sign and manage your documents. Privacy Policy: https://www.amcompany.net/privacy-policy-am-payroll/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Stamp Studio
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Stamp Studio is a focused tool for preparing documents on your iPhone or iPad. Import a PDF, add a reusable handwritten signature or custom stamp, and export a finished copy when you are ready to share it. FEATURES • Import PDF documents from Files • Draw and save handwritten signatures • Create reusable business-style stamps and seals • Extract a stamp from a photo or camera image with a transparent background • Move, resize, rotate, and rename signatures and stamps • Place marks on individual PDF pages or create an edge seal across multiple pages • Rename imported files and export a new signed PDF YOUR FILES STAY ON YOUR DEVICE Stamp Studio processes documents, signatures, and stamps locally on your device. Camera and photo-library access are used only when you choose to capture or import an image for stamp extraction. Stamp Studio offers auto-renewable subscriptions. The Terms of Use are governed by the Apple Standard License Agreement (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
StampDoc and Stamp Studio are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. Neither carries in-app purchases, so what you see is what you pay.
StampDoc ships an update every 2 months, Stamp Studio monthly. The most recent releases landed on October 4, 2026 and October 12, 2026 respectively.
| Parameter | StampDoc | Stamp Studio |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15 — better | 16.0 |
| Further details — not scored | ||
| Size | 67 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Anyelo Moreno | Beijing Yangming Jiuha Technology Co., Ltd |
In-app purchases
StampDoc
No in-app purchases
Stamp Studio
No in-app purchases








