Comparison

Stamp Identifier vs Cachet

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

Head to head
About

Stamp Identifier

Instantly identify, grade, and estimate the value of your stamps using advanced AI. Turn your device into a professional philatelic appraisal tool to understand the true worth of your collection.

Highlights
  • AI-powered stamp identification
  • Real-time market valuation
  • Expert condition grading
  • Portfolio tracking
  • Export PDF appraisals
  • Shareable digital cards
Features
Read full description

Inherited a stamp album? Found a box of vintage envelopes? Do not let valuable treasures go unnoticed. Stamp Identifier: Value Check turns your iPhone into a professional-grade philatelic appraisal tool. Powered by advanced AI Vision, we instantly identify, grade, and estimate the value of your stamps with the precision of an auction house expert. Stop guessing and start knowing the true worth of your historical assets. WHY COLLECTORS & RESELLERS CHOOSE US: INSTANT AI IDENTIFICATION Simply snap a photo or import from your gallery. Our AI cross-references extensive global philatelic databases to identify your stamp's origin, year, and history in milliseconds. REAL-TIME MARKET VALUATION Get accurate price ranges based on current market data. We provide separate estimated values for both "Used" and "Mint" conditions, helping you understand the true market potential of your finds. EXPERT CONDITION GRADING Is your stamp a hidden gem? Our proprietary AI analyzes centering, perforations, and cancellations to provide a professional condition assessment. TRACK YOUR PORTFOLIO Treat your collection like an investment. Instantly view your total asset value, total stamp count, and countries of origin in one sleek, private dashboard. EXPORT PDF APPRAISALS (PREMIUM) Ready to sell, insure, or catalog your collection? Generate and export professional-grade PDF appraisal reports with one tap. Perfect for dealers, auctioneers, and serious collectors. CREATE SHARE CARDS Flex your rarest discoveries. Generate stunning, auction-style digital cards of individual stamps to easily share with potential buyers, appraisers, or friends. PERFECT FOR: - Inheritors of vintage stamp collections - Antique dealers, estate sale pickers, and resellers - Curious collectors seeking professional valuation tools Download Stamp Identifier: Value Check today and reveal the hidden value of your stamps. *Disclaimer: Valuations and condition gradings provided by the app are estimates based on AI analysis and historical market data. They do not constitute official financial, legal, or investment advice. For high-value commercial transactions, consulting a certified philatelic expert is strongly recommended. Free version includes limited features; unlock full access with a Premium subscription.* Terms of Use: https://superfastapp.github.io/terms/ Privacy Policy: https://superfastapp.github.io/privacy/

About

Cachet

Features
Read full description

Cachet identifies stamps from a single photo and tells you what they're actually worth. Point your camera at any stamp, from any era or country, and get an instant identification with a real value range, catalogue reference, and an honest confidence score. Save your finds to a collection that tracks its total value as it grows. WHY CACHET • Identify any stamp in seconds: just scan or upload a photo • See a real value range, not a vague guess • Catalogue references (Scott, SG) so you can check the details yourself • Honest confidence: if a photo isn't clear enough, Cachet says so instead of pretending • Browse current listings to see what a stamp is selling for right now • Build a collection and watch its total value add up, in your own currency • 3 free scans to try it before you upgrade BUILT FOR COLLECTORS Whether you've inherited an album, found stamps in a drawer, or you've collected for years, Cachet helps you understand what you have, quickly and honestly. CACHET PRO Unlimited scans and full value details come with Cachet Pro. Choose a Weekly, Monthly or Yearly subscription (Monthly and Yearly start with a 3-day free trial), or pay once for Lifetime. Prices are shown in your currency before you buy. Cancel a subscription any time in your Apple account settings. Values are guides based on catalogue data and live listings, not a formal appraisal. Cachet Pro Weekly, Monthly and Yearly are auto-renewing subscriptions. Payment is charged to your Apple ID account at confirmation of purchase. The subscription renews automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel your subscription in your Apple ID account settings. Cachet Pro Lifetime is a one-time purchase, not a subscription. It covers normal personal use, as set out in the Terms of Use. Terms of Use (EULA): https://stamplens-identify.arun-singh-scot.workers.dev/terms Privacy Policy: https://stamplens-identify.arun-singh-scot.workers.dev/privacy

Screenshots

Stamp Identifier4 screens
Cachet4 screens

Verdict

The call

The clearest difference is update cadence: Cachet at weekly against Stamp Identifier's every 3 weeks. 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. Stamp Identifier sells 4 in-app purchases, starting at $6.99 per 7 days and Cachet sells 2 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Stamp Identifier ships an update every 3 weeks, Cachet weekly. Both last shipped on November 5, 2026.

Scorecard1 real difference · 9 level
Stamp Identifier versus Cachet: the parameters behind the verdict, then further details
ParameterStamp IdentifierCachet
PriceFreeFree
Rating4.6 (17 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings17 — better—
Update frequencyEvery 3 weeksWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad — betteriPhone
Requires iOS17.016.4 — better
Further details — not scored
Size31 MB59 MB
Age rating4+4+
Developer加兴 王Arun Singh

In-app purchases

4 purchases

Stamp Identifier

Subscriptions4
  • Pro - Weekly3 Days trial$6.997 Days
  • Pro - Weekly$6.997 Days
  • Pro - Yearly3 Days trial$39.991 Year
Show 1 more
  • Pro - Yearly$39.991 Year
2 purchases

Cachet

Subscriptions2
  • Cachet Pro Weekly$2.997 Days
  • Cachet Pro Yearly3 Days trial$39.991 Year

Questions

Is Stamp Identifier free?
Stamp Identifier is free to download, with in-app purchases available.
Is Cachet free?
Cachet is free to download, with in-app purchases available.
Do Stamp Identifier or Cachet have ads?
Neither Stamp Identifier nor Cachet shows ads.
Which is updated more often, Stamp Identifier or Cachet?
Stamp Identifier ships an update every 3 weeks, and Cachet weekly. Most recently, Stamp Identifier was updated on November 5, 2026 and Cachet on November 5, 2026.

Other comparisons