Comparison

Identify Any Stamp 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

Identify Any Stamp

Features
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Discover the true value and story behind any stamp with Stamp Identifier. Simply snap a photo and our advanced AI instantly identifies the stamp, its country of origin, year of issue, printing method, condition, and provides accurate market value estimates. Whether you're a philatelist, stamp dealer, estate buyer, or simply curious about that inherited collection, Stamp Identifier is your expert companion for understanding and valuing postage stamps from around the world. KEY FEATURES: Instant Stamp Identification Take a photo of any postage stamp and receive detailed identification in seconds. Our AI recognizes stamps from hundreds of countries and territories across all eras, from classic 19th-century issues to modern commemoratives. Accurate Value Estimates Get reliable market value estimates based on rarity, condition, centering, gum quality, and current market trends. Perfect for insurance purposes, estate planning, or before buying and selling. Country and Era Recognition Identify stamps from every corner of the globe and every period of postal history. Learn about the historical events, cultural themes, and design stories behind each issue. Printing Method Analysis Detailed information about engraving, lithography, typography, photogravure, and other printing techniques. Understand watermarks, perforations, and paper types that affect value. Build Your Collection Create a digital catalog of your stamps with photos, valuations, and detailed information. Track your collection's value and keep organized records of your philatelic holdings. Philatelic Knowledge Access comprehensive information about stamp types, printing methods, grading standards, and collecting strategies. Learn what experienced collectors and dealers look for when evaluating stamps. Perfect for philatelists, stamp dealers, estate buyers, auction enthusiasts, and anyone who wants to understand the value of their stamp collection. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.centriqo.net/legal/apps/stampidentifier/privacy.html Support: https://identifyanystamp.com/

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
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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

Identify Any Stamp4 screens
Postcard Archive4 screens

Verdict

The call

The clearest difference is update cadence: Postcard Archive at every 5 days against Identify Any Stamp's every 6 weeks. Identify Any Stamp's advantage is iOS requirement (15.1 vs 18.0). 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. Identify Any Stamp sells 7 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

Identify Any Stamp ships an update every 6 weeks, Postcard Archive every 5 days. The most recent releases landed on October 24, 2026 and October 21, 2026 respectively.

Scorecard2 real differences · 7 level
Identify Any Stamp versus Postcard Archive: the parameters behind the verdict, then further details
ParameterIdentify Any StampPostcard Archive
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 6 weeksEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
Monetization—Free
DevicesiPhone, iPodiPhone, iPad, Mac — better
Requires iOS15.1 — better18.0
Further details — not scored
Size51 MB87 MB
Age rating4+4+
DeveloperCentriqoRizk Corsight, LLC

In-app purchases

7 purchases

Identify Any Stamp

Subscriptions6
  • Weekly Pro$5.997 Days
  • Weekly Pro3 Days trial$5.997 Days
  • Monthly Pro$8.991 Month
Show 3 more
  • Monthly Pro3 Days trial$8.991 Month
  • Annual Pro$29.991 Year
  • Annual Pro3 Days trial$29.991 Year
One-time1
  • Premium Lifetime$29.99
3 purchases

Postcard Archive

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

Questions

Is Identify Any Stamp free?
Identify Any Stamp 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 Identify Any Stamp or Postcard Archive have ads?
Neither Identify Any Stamp nor Postcard Archive shows ads.
Which is updated more often, Identify Any Stamp or Postcard Archive?
Identify Any Stamp ships an update every 6 weeks, and Postcard Archive every 5 days. Most recently, Identify Any Stamp was updated on October 24, 2026 and Postcard Archive on October 21, 2026.

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