Comparison

StampDoc vs Stamp Studio

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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/

About

Stamp Studio

Features
Read full description

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

StampDoc4 screens
Stamp Studio3 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

StampDoc ships an update every 3 months, Stamp Studio monthly. Both last shipped on October 28, 2026.

Scorecard1 real difference · 9 level
StampDoc versus Stamp Studio: the parameters behind the verdict, then further details
ParameterStampDocStamp Studio
PriceFreeFree
Rating5.0 (3 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings3 — better—
Update frequencyEvery 3 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15 — better16.0
Further details — not scored
Size56 MB4 MB
Age rating4+4+
DeveloperAnyelo MorenoBeijing Yangming Jiuha Technology Co., Ltd

In-app purchases

None

StampDoc

No in-app purchases

None

Stamp Studio

No in-app purchases

Questions

Is StampDoc free?
StampDoc is free to download, with no in-app purchases.
Is Stamp Studio free?
Stamp Studio is free to download, with no in-app purchases.
Do StampDoc or Stamp Studio have ads?
Neither StampDoc nor Stamp Studio shows ads.
Which is updated more often, StampDoc or Stamp Studio?
StampDoc ships an update every 3 months, and Stamp Studio monthly. Most recently, StampDoc was updated on October 28, 2026 and Stamp Studio on October 28, 2026.

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