Comparison

Stamp Identifier & Snap ID 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 & Snap ID

Instantly identify stamps using AI, verify authenticity, and discover their historical significance and market value. Organize your collection and chat with an AI expert about stamp details.

Highlights
  • AI stamp identification
  • Authenticity verification
  • Historical significance discovery
  • Market value estimation
  • Stamp collection organization
  • AI chat for stamp details
Features
Read full description

Whether it's an inherited stamp collection, rare finds at a garage sale, or postal history mysteries - your expert philatelist reveals the history and value of stamps instantly. Use it when examining collections, browsing estate sales, or organizing inherited items - you never know what postal treasures you might uncover! • Identify stamps with AI technology • Get instant authenticity verification • Discover historical significance and stories • Estimate market value and rarity • Save and organize stamps into collections • Chat with AI about stamp details! Your smart stamp expert is always in your pocket - one of the best apps for stamp identification. Start exploring postal history with every identification. Download today! Pro Options Available • Weekly • Annual Subscriptions will be charged to your iTunes account. For weekly or annual subscriptions, your account will automatically renew 24 hours before the end of the current period unless auto-renew is turned off. You can manage or cancel your subscription at any time in your App Store account settings. Privacy Policy: [https://kalo.super.site/stamp/privacy-policy] Terms of Use: [https://kalo.super.site/stamp/terms-of-use]

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 & Snap ID4 screens
Postcard Archive4 screens

Verdict

The call

The clearest difference is rating: Postcard Archive at 5.0 against Stamp Identifier & Snap ID's 4.6. Postcard Archive also leads on monetization model (free vs freemium) and update cadence (every 5 days vs every 4 weeks). Stamp Identifier & Snap ID's advantage is ratings volume (22 vs 1). On price, ads, in-app purchases and iOS requirement 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 & Snap ID sells 3 in-app purchases, starting at $3.99 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.

ReceptionRating · Positive reviews · Number of ratings

Postcard Archive holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Stamp Identifier & Snap ID has 22 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Stamp Identifier & Snap ID ships an update every 4 weeks, Postcard Archive every 5 days. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

Scorecard5 real differences · 5 level
Stamp Identifier & Snap ID versus Postcard Archive: the parameters behind the verdict, then further details
ParameterStamp Identifier & Snap IDPostcard Archive
PriceFreeFree
Rating4.6 (22 ratings)5.0 (1 ratings) — better
Positive reviews0.0% of reviews—
Number of ratings22 — better1
Update frequencyEvery 4 weeksEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree — better
DevicesiPhoneiPhone, iPad, Mac — better
Requires iOS17.0 — better18.0
Further details — not scored
Size17 MB87 MB
Age rating4+4+
Developer升 徐Rizk Corsight, LLC

Customer experience

Stamp Identifier & Snap ID

All ratings22 ratings
Positive90.9%
Neutral4.5%
Negative4.5%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Postcard Archive

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

Stamp Identifier & Snap ID

Subscriptions2
  • Weekly3 Days trial$3.997 Days
  • Annual$24.991 Year
One-time1
  • 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 Stamp Identifier & Snap ID free?
Stamp Identifier & Snap ID is free to download, with in-app purchases available.
Is Postcard Archive free?
Postcard Archive is free to download, with in-app purchases available.
Which has better reviews, Stamp Identifier & Snap ID or Postcard Archive?
Postcard Archive is rated higher. Stamp Identifier & Snap ID averages 4.6 out of 5 from 22 ratings, while Postcard Archive averages 5.0 from 1 ratings.
Do Stamp Identifier & Snap ID or Postcard Archive have ads?
Neither Stamp Identifier & Snap ID nor Postcard Archive shows ads.
Which is updated more often, Stamp Identifier & Snap ID or Postcard Archive?
Stamp Identifier & Snap ID ships an update every 4 weeks, and Postcard Archive every 5 days. Most recently, Stamp Identifier & Snap ID was updated on October 28, 2026 and Postcard Archive on October 31, 2026.

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