Comparison

Stamp Identifier Value Checker vs Postcard Archive

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

Head to head
About

Stamp Identifier Value Checker

Features
Read full description

Stamps Identifier uses advanced AI to recognize any stamp from a photo, find its catalog information, estimate market value, and help you build a digital collection with ease. Identify Any Stamp in Seconds • Snap a photo to instantly recognize your stamp • Get country, year, catalog numbers, and detailed descriptions • Works with classic, modern, rare, and foreign stamps Check Real Market Value • See estimated value and rarity score • Compare with real-time eBay listings Build Your Digital Collection • Save your stamps to a beautifully organized library • Track the total estimated value of your collection For Beginners and Professional Philatelists Whether you're just starting your collection or managing thousands of stamps, Stamps Identifier helps you stay organized, informed, and inspired. Features • AI-powered stamp recognition • Catalog numbers & detailed info • Rarity and value estimation • Listings integration • Personal digital collection • Unlimited scans with premium Start building your collection today. Scan your first stamp and uncover its history and true worth. Privacy Policy: https://mrzv.app/privacy/ Terms of Use: https://mrzv.app/terms/

About

Postcard Archive

A private, offline digital catalog for postcard collectors. It allows you to photograph both sides of your cards, automatically extract information from handwritten messages using on-device OCR, and classify the card's era. Organize your entire collection with detailed fields and explore it through various browsing and search options.

Highlights
  • Two-sided card capture
  • On-device OCR for handwritten messages
  • Automatic era classification
  • Detailed collection record fields
  • Relationship Timeline
  • Offline, private storage
  • CSV/JSON archive export
Features
Read full description

Your Private Postcard Archive Add front and back photos, location, stamps, postmarks, and notes — all kept private on your device. • Use era and back-of-card cues to finish research without uploading your archive • Map origins, track wants, make trade sheets, and export the full collection • Places map — see every origin and destination plotted across the world • Wishlist — track the cards you're still hunting, separate from your collection • Collector Trade Sheet — export your tradeables & duplicates Keep both sides together, find each card’s album or box, and catalog a stack at a time. Read text on your device with selectable writing systems and editable results. Move or restore your collection between iOS and Android with JSON ZIP archives, preserving images and details. Imports support up to 256 MB and keep existing cards. Your archive stays on your device. No accounts, no cloud, no analytics, no tracking. Start with 3 days of full access to Places, Wishlist, Era Reports, and Trade Sheets. After that, a one-time purchase keeps them available. No subscription. One-time purchase. No subscription. Family Sharing enabled.

Screenshots

Stamp Identifier Value Checker4 screens
Postcard Archive4 screens

Verdict

The call

The clearest difference is update cadence: Postcard Archive at every 5 days against Stamp Identifier Value Checker's every 4 months. Postcard Archive also leads on device support (3 vs 1). Stamp Identifier Value Checker's advantage is iOS requirement (16.6 vs 18.0). On price, ads and in-app purchases 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. Stamp Identifier Value Checker sells 2 in-app purchases, starting at $5.99 per 7 days and Postcard Archive sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Stamp Identifier Value Checker ships an update every 4 months, Postcard Archive every 5 days. The most recent releases landed on October 10, 2026 and October 21, 2026 respectively.

Scorecard3 real differences · 6 level
Stamp Identifier Value Checker versus Postcard Archive: the parameters behind the verdict, then further details
ParameterStamp Identifier Value CheckerPostcard Archive
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 4 monthsEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
Monetization—Free
DevicesiPhoneiPhone, iPad, Mac — better
Requires iOS16.6 — better18.0
Further details — not scored
Size22 MB87 MB
Age rating4+4+
DeveloperAliaksei MarozauRizk Corsight, LLC

In-app purchases

2 purchases

Stamp Identifier Value Checker

Subscriptions2
  • Stamp Identifier - Weekly Plan3 Days trial$5.997 Days
  • Stamp Identifier - Annual Plan$29.991 Year
3 purchases

Postcard Archive

One-time3
  • 3-Day TrialFree
  • Postcard Archive Pro$1.99
  • Postcard Archive Full Access$1.99

Questions

Is Stamp Identifier Value Checker free?
Stamp Identifier Value Checker is free to download, with in-app purchases available.
Is Postcard Archive free?
Postcard Archive is free to download, with in-app purchases available.
Do Stamp Identifier Value Checker or Postcard Archive have ads?
Neither Stamp Identifier Value Checker nor Postcard Archive shows ads.
Which is updated more often, Stamp Identifier Value Checker or Postcard Archive?
Stamp Identifier Value Checker ships an update every 4 months, and Postcard Archive every 5 days. Most recently, Stamp Identifier Value Checker was updated on October 10, 2026 and Postcard Archive on October 21, 2026.

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