The 6 Best Stamp Identifier Apps in 2026, Compared Honestly

Full disclosure: Stampo is our app, and it's in this comparison. To keep ourselves honest, every competitor fact on this page — ratings, prices, features — comes from each app's own public US App Store listing, checked on September 7, 2026, and every listing is linked below so you can verify in one tap. Stampo is new (released June 2026) and has no public star rating yet — the other apps here have real rating histories, and we show them.

All 6 apps at a glance

The pricing trap to watch: weekly subscriptions

Most stamp scanner apps are free to download and monetize with a subscription — and the pattern across this category is a cheap-sounding weekly plan next to a pricier annual one. A $4.99/week plan costs about $260 a year if you forget to cancel; $6.99/week is roughly $363 a year. If you only need to sort one inherited album, use a weekly plan deliberately and cancel it — or pick an annual plan and treat it as the real price.

Stampo deliberately has no weekly plan: one Annual Subscription at $14.99/year — the lowest annual price in this comparison — and the free download lets you try identification before paying anything.

Each app, honestly

Stampo (ours)

Stamp Value Identifier: Stampo identifies a stamp from one photo — country, year, denomination, catalog number — then gives an estimated value range by condition and saves it to your collection. Two things we do differently: our value figures follow the same honest, condition-tiered approach as our stamp value guides (most stamps are genuinely worth very little, and an app that pretends otherwise is lying to you), and we charge one flat $14.99/year. The honest trade-off: Stampo is the newest app here (June 2026), so it has no public rating history yet.

StampSnap - Stamp Identifier

StampSnap - Stamp Identifier by TECHFLINES JOINT STOCK COMPANY — 3.9★ from 334 ratings, on the store since 2024, last updated 2026-07-13 (v 6.0.1).

• Good: One of the longer-running AI stamp scanners (on the store since March 2024, now on version 6.0.1).
• Good: Offers a one-time Lifetime purchase ($34.99) — an option Stampo doesn't have.
• Good: Runs on older devices (iOS 14+) and on Apple Silicon Macs and Vision Pro.
• Consider: Its 3.9-star average (334 ratings) is the lowest among the major stamp scanners on this page.
• Consider: The $6.99 weekly plan works out to about $363 a year if left running — check which plan you're on before subscribing.
• Consider: English only.

PhilSnap: Stamp ID & Values

PhilSnap: Stamp ID & Values by Next Vision Limited — 4.7★ from 2,257 ratings, on the store since 2025, last updated 2026-04-08 (v 1.4.1).

• Good: The highest-rated dedicated stamp scanner in this comparison — 4.7 stars across 2,257 ratings.
• Good: Its listing emphasizes condition-based price ranges and grading tips, a genuinely useful framing.
• Consider: Its public In-App Purchases list showed two 'PhilSnap Premium' prices ($3.99 and $39.99) without stating the billing periods — check the paywall carefully before subscribing.
• Consider: If the $39.99 tier is the annual plan, it is more than twice Stampo's $14.99 annual price.
• Consider: Needs iOS 16 or later; English only.
• Consider: Its last listed update was April 2026, the longest gap of any actively-sold app here.

Stamp Value Stamp Identifier

Stamp Value Stamp Identifier by Ngoc Anh Pham Thi — 4.6★ from 3,443 ratings, on the store since 2024, last updated 2026-09-03 (v 1.8.3).

• Good: The most-reviewed dedicated stamp scanner in this comparison — 3,443 ratings at 4.6 stars.
• Good: The most actively maintained app here: last updated four days before our check date.
• Good: Runs on iOS 15, one release below Stampo's iOS 16 floor.
• Consider: PRO YEARLY costs $39.99 — over 2.5× Stampo's $14.99 annual plan.
• Consider: The $4.99 weekly plan compounds to roughly $260 a year if left running.
• Consider: English only.

Stampy: Stamp Value Identifier

Stampy: Stamp Value Identifier by Kiryl Nazarau — 4.6★ from 73 ratings, on the store since 2024, last updated 2026-08-31 (v 2.2.3).

• Good: Localized into 33 languages — the only rival here that matches Stampo's own language coverage.
• Good: Well rated (4.6 stars) and recently updated, though from a small base of 73 ratings.
• Good: Offers a one-time Lifetime purchase, which Stampo does not.
• Consider: Its IAP list showed several overlapping plans ($19.99 and $29.99 both appearing for a year) — verify the exact offer on the paywall.
• Consider: The $79.99 lifetime plan is the most expensive single purchase in this comparison.
• Consider: 73 ratings is a thin evidence base compared with the 2,000+ of PhilSnap or Stamp Value Stamp Identifier.
• Consider: Needs iOS 16.1, the highest OS floor of any app here.

Stamp ID Pro™: Collect Stamps

Stamp ID Pro™: Collect Stamps by Distal Industries, LLC — 4.4★ from 303 ratings, on the store since 2019, last updated 2025-06-29 (v 5.0.4).

• Good: The veteran of the category — on the App Store since 2019, years before the current wave of AI scanners.
• Good: A methodical wizard approach (process of elimination) that US specialists may prefer over pure AI guessing.
• Good: The cheapest one-time unlock in this comparison at $9.99.
• Consider: US stamps only — no worldwide identification, so an inherited mixed album is largely out of scope.
• Consider: Identification-focused: its listing centres on identifying the stamp, not estimating what it's worth.
• Consider: Its last listed update was June 2025 — by far the longest gap of any app compared here.

How we compared (methodology)

• All facts were read from each app's public US App Store listing on September 7, 2026 — ratings and counts as Apple displays them, prices from the listing's "In-App Purchases" section, features from each app's own description.
• We did not install and lab-test every competitor; feature rows are each app's own claims, marked as such.
• Ratings move and prices change. If you spot something outdated, check the linked listing — it always wins — and tell us so we can fix it.
• Also worth knowing: Colnect and StampWorld are huge web-based stamp catalogs rather than photo-identifier apps — great reference databases once you already know what stamp you're holding.

Related comparisons

• Stampo vs StampSnap
• Stampo vs PhilSnap
• Stampo vs Stamp Value Stamp Identifier
• Stampo vs Stampy
• Stampo vs Stamp ID Pro

Sources

Every fact on this page traces to a public App Store listing, checked September 7, 2026:

• Stampo — App Store listing
• StampSnap - Stamp Identifier — App Store listing
• PhilSnap: Stamp ID & Values — App Store listing
• Stamp Value Stamp Identifier — App Store listing
• Stampy: Stamp Value Identifier — App Store listing
• Stamp ID Pro™: Collect Stamps — App Store listing