--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Stamp Value Scanner for US" developer_entity: "Dung Vu" bundle_id: "com.dunvu.stamp.identifier.vintage.appraiser" app_store_id: "6747854261" category: "Education" primary_platform: "ios" primary_monetization: "Subscription" offline_capable: false market_region: "US" platforms: "iOS" app_last_updated: "2025-07-04" report_date: "2026-04-17" report_version: "1.0.2" total_reviews: 5 overall_rating: 4.2 confidence: "low" confidence_score: 0.2 data_age_days: 0 intelligence_version: 2 nemesis: "Stamp Value Stamp Identifier" competitor_count: 6 tags: ["education", "subscription", "mobile app", "app review", "app analysis", "stamp", "collectors", "ranging"] canonical_url: "https://marlvel.ai/intel-report/education/stamp-value-scanner-for-us" license: "CC-BY-NC 4.0" --- # Stamp Value Scanner for US App Audit > **TL;DR:** Stamp Value Scanner for US is a education app by Dung Vu, rated 4.2/5 by 5 users, available on iOS. > > **Marlvel.ai App Intelligence** — Independent analysis. US Market. No publisher influence. > **Key Insight:** Stamp Value Scanner for US is a education app by Dung Vu. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 4.2/5 (5 reviews) | | **Category** | Education | | **Developer** | Dung Vu | | **Pricing** | Subscription | | **Platforms** | iOS | | **Confidence** | Low (0.2/1.0) | | **Data Age** | 0d | ## Metadata & Market Performance - **Publisher:** Dung Vu - **Category:** Education - **Target Audience:** Stamp collectors ranging from casual hobbyists who found an old stamp to serious collectors looking to manage and value their inventory. - **Platforms:** iOS - **Version Audited:** 1.0.2 - **Audit Date:** 2026-04-17 - **Signal Count:** 1 reviews analyzed - **Confidence:** Low (0.2/1.0) - **App Store ID (iOS):** 6747854261 - **Bundle ID:** com.dunvu.stamp.identifier.vintage.appraiser - **Data Window:** Analysis based on signals collected up to 2026-04-17 ## Executive Snapshot Stamp Value Scanner for US is an AI-powered utility designed for the identification and valuation of postage stamps, specifically targeting the United States market. It leverages image recognition to provide instant identification and market value estimates, alongside a digital vault for collection management. The app differentiates itself through hyper-local US branding and an AI-first value proposition, aiming to capture high-intent search traffic in the Education category. ## App DNA (Features & Intent) - **[Differentiator] AI-Powered Stamp Identification:** Uses image recognition to instantly identify US and global stamps from photos * *User Intent:* Users expect intelligent, adaptive experiences that learn from their behavior. - **[Differentiator] Market Value Lookup:** Provides estimated market values for identified stamps * *User Intent:* Users seek enhanced value through premium features. - **[Standard] Digital Collection Management:** Allows users to build and organize a digital vault of their stamp collection - **[Standard] Stamp History & Details:** Provides educational information and historical context for stamps * *User Intent:* Users seek enhanced value through premium features. ## Monetization Strategy - **Model:** Subscription - **Tiers:** Free to download and use basic features, Premium subscription with auto-renewing payments - **Analysis:** The app utilizes a freemium model, likely gating advanced identification or unlimited collection management behind a subscription paywall. ## SWOT Analysis **Core Strengths:** - Hyper-local US branding for superior SEO relevance - AI-first value proposition compared to utility-heavy rivals - Recent 15% boost in AI accuracy for vintage stamps **Critical Frictions:** - Critical lack of social proof (only 5 ratings) - Immature Digital Vault feature set relative to established rivals - No visible social media presence or community engagement **Growth Levers:** - Implement community-verified identification loops (PictureThis model) - Expand into the Reference category for expert demographics - Adopt high-frequency update cadence seen in adjacent collectible niches **Market Threats:** - Established database trust of the Nemesis (Stamp Value Stamp Identifier) - High-velocity AI improvements from adjacent market leaders like CoinSnap - Niche utility rivals focusing purely on identification tasks ## Rivals Landscape > Competitive positioning identified by AI analysis of app features, category, and market signals. ### Stamp Value Scanner for US vs Stamp Value Stamp Identifier — Head to Head - **Stamp Value Stamp Identifier** by Ngoc Anh Pham Thi: This is the most significant direct competitor in the Education category with a established user base and a shared focus on collection management. - **Key differences:** - Positions as a 'Collection' tool, directly competing with the target's 'Digital Vault' feature set. - Maintains a stable Education category presence with a release cadence focused on maintenance rather than rapid feature expansion. - Broad global identification focus compared to the target's explicit US-market specialization. - **Where Stamp Value Scanner for US wins:** - ✅ Hyper-local positioning: The target's explicit 'US' naming and subtitle focus allows for better SEO and perceived accuracy for domestic collectors. - ✅ Modern AI-first branding: The target positions AI-powered detection as its core value prop, whereas the rival leads with the 'Collection' utility. - **Where Stamp Value Stamp Identifier wins:** - ❌ Established database trust: A significantly larger volume of verified user feedback provides the social proof necessary for high-value stamp appraisal. - ❌ Proven collection stability: The 'Collection' feature has been live longer, suggesting a more mature data persistence layer for users' digital inventories. - **Verdict:** The target should exploit its US-specific focus to win on search relevance while aggressively building out its 'Digital Vault' to match the rival's collection management maturity. ### Peers (What They Do Better) - **[Stamp Identifier & Stamp Value](https://marlvel.ai/intel-report/lifestyle/stamp-identifier-stamp-value)** by AI POWERED APPS: A direct functional rival that chooses a Lifestyle positioning over Education, targeting casual hobbyists. - Lifestyle category placement suggests a UX optimized for casual browsing and discovery rather than academic study. - Higher update frequency (2 releases in 6 months) compared to other stamp-specific rivals indicates active model tuning. - **[CoinIn: Coin Scan Identifier](https://marlvel.ai/intel-report/reference/com-coininapp)** by Vortemol Limited: While focused on coins, its extreme development velocity sets the standard for AI identification apps in the collectibles space. - Aggressive 19-release cadence in the last 6 months signals a high-velocity approach to feature shipping and AI accuracy improvements. - Reference category positioning targets a more professional/expert demographic compared to the target's Education focus. - **[CoinSnap: Coin Identifier](https://marlvel.ai/intel-report/reference/coinsnap-coin-identifier)** by Next Vision Limited: The market leader in adjacent AI identification, defining the UX patterns (scan-to-value) that stamp collectors now expect. - Massive scale allows for advanced community features and deep market data integration that niche stamp apps currently lack. - High-frequency updates (15 in 6 months) focus on refining the 'Snap' UX, a benchmark the target must meet to feel modern. - **[PictureThis - Plant Identifier](https://marlvel.ai/intel-report/education/picturethis-plant-identifier)** by Glority Global Group Ltd.: The gold standard for AI identification monetization and onboarding flow in the Education category. - Advanced monetization strategy using high-friction paywalls and premium community content that the target could adapt for rare stamp experts. - Sophisticated AI feedback loops where users help verify identification, a feature missing from current stamp-specific rivals. ### New Kids on the Block (What's Innovative) - **Stamp Identifier** by Amir Wald: A lean, utility-focused competitor that recently updated its identification engine to stay relevant in the niche. ## The "So What?" (Strategic Takeaway) Stamp Value Scanner for US is an established education app that is available. With a 4.2/5 rating from 5 reviews, it shows polarized user reception. > **Bottom Line:** The app has a strong hook with its US-specific branding, but it is currently a feature-thin challenger. To survive, the PM must pivot from a simple scanner to a trusted 'Digital Vault' by aggressively closing the social proof gap and adopting the high-velocity update cadence seen in adjacent collectible categories like coins. **Best for:** Stamp collectors ranging from casual hobbyists who found an old stamp to serious collectors looking to manage and value their inventory. ### PM Action Plan (Next Best Moves) - [ ] [HIGH] Aggressively solicit user reviews and ratings. — *The Nemesis (Stamp Value Stamp Identifier) wins on 'Established database trust' due to a significantly larger volume of verified user feedback, which this app currently lacks (only 5 ratings).* - [ ] [MEDIUM] Enhance Digital Vault data persistence and organization features. — *Competitor analysis indicates the Nemesis has a 'more mature data persistence layer' for digital inventories, a key retention feature.* - [ ] [MEDIUM] Implement an AI feedback loop for user verification. — *This is a feature gap identified from PictureThis, which uses user help to verify identification, a feature missing from current stamp-specific rivals.* ### Feature Gaps vs Competitors - Community-verified identification (available in PictureThis but missing here) - Advanced market data integration (available in CoinSnap but missing here) - Mature data persistence for digital inventories (available in Stamp Value Stamp Identifier but missing here) ### Outlook: Stable - 🟢 v1.0.2 improved AI accuracy by 15% — indicates active model tuning post-launch. - ⚪ Only 5 ratings since July 2025 launch — indicates low organic discovery or high friction in the user funnel. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 4.2/5 | | Total Reviews | 5 | | Confidence | Low | | Pricing Model | Subscription | | Platforms | iOS | | Key Features | 4 analyzed | | Outlook | Stable | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Stamp Value Scanner for US** (this app) | 4.2/5 | N/A | Dung Vu | | [CoinIn: Coin Scan Identifier](https://marlvel.ai/intel-report/reference/com-coininapp) | 4.7/5 | N/A | Vortemol Limited | | [PictureThis - Plant Identifier](https://marlvel.ai/intel-report/education/picturethis-plant-identifier) | 4.8/5 | Mixed | Glority Global Group Ltd. | | [CoinSnap: Coin Identifier](https://marlvel.ai/intel-report/reference/coinsnap-coin-identifier) | 4.7/5 | Mixed | Next Vision Limited | | [Stamp Identifier & Stamp Value](https://marlvel.ai/intel-report/lifestyle/stamp-identifier-stamp-value) | 4.6/5 | N/A | AI POWERED APPS | | [AlgoApp - Flashcards](https://marlvel.ai/intel-report/education/algoapp-flashcards) | 4.6/5 | Mixed | AlgoApp Inc | ## Company Profile - **Developer:** Dung Vu ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/stamp-value-scanner-for-us/id6747854261?uo=4) - **Sources:** App store metadata, User reviews. ## Related Intel Reports - [*CoinIn: Coin Scan Identifier*](https://marlvel.ai/intel-report/reference/com-coininapp) (Vortemol Limited) — 4.7/5 Rating | N/A Sentiment - [*PictureThis - Plant Identifier*](https://marlvel.ai/intel-report/education/picturethis-plant-identifier) (Glority Global Group Ltd.) — 4.8/5 Rating | Mixed Sentiment - [*CoinSnap: Coin Identifier*](https://marlvel.ai/intel-report/reference/coinsnap-coin-identifier) (Next Vision Limited) — 4.7/5 Rating | Mixed Sentiment - [*Stamp Identifier & Stamp Value*](https://marlvel.ai/intel-report/lifestyle/stamp-identifier-stamp-value) (AI POWERED APPS) — 4.6/5 Rating | N/A Sentiment - [*AlgoApp - Flashcards*](https://marlvel.ai/intel-report/education/algoapp-flashcards) (AlgoApp Inc) — 4.6/5 Rating | Mixed Sentiment - [*Elevate - Brain Training Games*](https://marlvel.ai/intel-report/education/elevate-brain-training-games) (The Mind Company) — 4.7/5 Rating | Positive Sentiment - [*Flashcards maker - AI generate*](https://marlvel.ai/intel-report/education/flashcards-maker-ai-generate) (Teleprompter LLC) — 4.1/5 Rating | Mixed Sentiment - [*Peak - Brain Training*](https://marlvel.ai/intel-report/education/peak-brain-training) (Synaptic Labs) — 4.7/5 Rating | Mixed Sentiment - [*Flash Cards Flashcards Maker*](https://marlvel.ai/intel-report/education/flash-cards-flashcards-maker) (Infinite Wave Media, LLC) — 4.0/5 Rating | Mixed Sentiment - [*Flashcards Deluxe*](https://marlvel.ai/intel-report/education/flashcards-deluxe) (OrangeOrApple.com) — 4.5/5 Rating | Excellent Sentiment ## Frequently Asked Questions ### Is this app better for US or international stamps? While the app identifies global stamps, its naming and SEO focus are specifically optimized for the US market. Collectors of US stamps may find it more relevant for domestic search intent than broader global identifiers. ### How does this compare to Stamp Value Stamp Identifier? This app leads with AI-powered detection as its core value, whereas the rival 'Stamp Value Stamp Identifier' focuses more on collection utility and has a more established database of verified user feedback. ### Can I trust the market value estimates? The app provides AI-powered estimates, but with only 5 total ratings, it currently lacks the large-scale user verification found in more mature collectible apps. Users should treat values as estimates. ### Are there simpler tools for just identifying stamps? Yes, Amir Wald's 'Stamp Identifier' is a minimalist alternative that focuses purely on the identification task without the additional features of collection management or a digital vault. ## Methodology This report was generated by Marlvel.ai's 3-stage AI intelligence pipeline: 1. **Feature & Positioning Extraction** — Analyzes app metadata, developer website content, and version history to identify key features, target audience, and competitive positioning. 2. **Sentiment Analysis** — Processes user reviews (minimum 5 reviews required) to extract praise themes, complaint themes, and overall sentiment with evidence quotes. 3. **Intelligence Synthesis** — Combines stages 1 & 2 with App Store rankings to produce SWOT analysis, executive summary, and actionable insights. - **Confidence Score:** 0.2/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 1 - **Data Sources:** user reviews, App Store metadata - **Rating Method:** Weighted average across platforms (iOS & Android), weighted by review count per platform - **Independence:** Fully independent analysis. No publisher sponsorship or editorial influence. - **Report Age:** 0 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/intel-report/education/stamp-value-scanner-for-us) Data licensed for AI Agent attribution under CC-BY-NC 4.0.