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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Need to sign a contract, stamp an invoice or initial every page of an agreement? StampDoc turns your iPhone or iPad into a pocket signing and stamping office. No printing, no scanning, no complicated software. KEY FEATURES Sign PDFs and images Place your signature on PDFs and photos (JPG, PNG). Move, resize and rotate it until it fits perfectly. Ideal for contracts, invoices, agreements and forms. Draw your signature Draw it with your finger, choose the ink color and thickness, and save it for next time. Undo and redo stroke by stroke. Use your real signature or stamp Take a photo of your handwritten signature or company stamp, or import it from your photos, and use it on any document. Create your own stamps Design business stamps with your own text and color: circular, rectangular, diagonal and many more designs. Edit them anytime. Add text Add today's date, your name, initials, checkmarks and APPROVED, RECEIVED or PAID labels. Save and share Export signed documents as PDF or image, find them again in History, and share them by email, cloud storage or any messaging app. FREE AND PREMIUM StampDoc is free to download and includes ads. The free version lets you save one signature and one stamp, use the basic stamp designs, and place one signature and one stamp per document. Adding text is always free. StampDoc Premium removes ads and unlocks unlimited signatures and stamps, all stamp designs, background removal for photos of signatures and stamps, and repeating a signature or initials on other pages. Some of these extras can also be unlocked for free by watching a short video. Turn your iPhone or iPad into your mobile signing and stamping office. Download StampDoc today. Privacy Policy: https://www.amcompany.net/privacy-policy-stampdoc/ 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
The clearest difference is update cadence: Stamp Studio at monthly against StampDoc's every 3 months. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
StampDoc ships an update every 3 months, Stamp Studio monthly. Both last shipped on October 28, 2026.
| Parameter | StampDoc | Stamp Studio |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 3 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 | 56 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









