Stamp Identifier Value
74
Quality Score
Strong
Stamp Identifier Value
by Ngoc Anh Pham Thi
Medium confidence
✍️ Bumetric analysis
“
Stamp Identifier Value is an iOS app from Ngoc Anh Pham Thi in the News category, currently rated 4.6★ across 3,007 ratings. Initial signal reads as mostly critical sentiment so far: users flag rough edges and unmet expectations.
Quality Score is 74: Strong (healthy traction). For a News app, that means healthy traction. The full BU Investment Matrix below scores 8 dimensions including monetisation, growth, and operational risk.
Track changes month-over-month in the Performance section below: live snapshot history and revenue forecast included.
💰 Monthly revenue · now vs forecast
● Right now
$5.0K
per month
→
12-mo forecast
$5.2K – $10.8K
per month
→
24-mo forecast
$6.4K – $19.2K
per month
MID tier
💡 Grow this revenue
Free AI audit of this app’s store listing
- Title & subtitle keyword fit
- Description hook & conversion structure
- Screenshots, ratings, reviews strategy
Typical impact: +2-5× organic installs
📊 Performance Tracking LIVE
64 snapshots on record
Rating
4.6
Reviews
3,007 reviews
Forecast Revenue / mo
$5.0K
Snapshots tracked
64
since Jul 2024
ONE-TIME · BUILD
💰 Estimated build cost
$85K
↳ What it cost to build · not monthly revenue
Likely range $65K – $115K
$25K · MVP floor
$100K · indie scale
$500K+ · studio build
📈
Pays back in ~1.4y at current MRR
Synthetic estimate. Inputs: category complexity, file size, screen count, monetization layer, platform reach, age × team-size proxy. Calibrated against 2024-2026 indie-agency rate surveys. Full math + source list on /methodology.
Where the money goes
| 🧱 MVP baseline (design + 1-store ship) | +$28K |
| 📱 5 unique screens × $4.5K | +$22K |
| 📦 Asset bundle (75 MB) | +$9K |
| ⚙ News complexity ×1.20 | +$12K |
| ⚙ 2.2y maintenance × ~1-person team | +$13K |
Total estimate
$85K
ONE-TIME · EXIT VALUE
💵 Estimated acquisition value
$75K
↳ What it would sell for · not monthly revenue
Marketplace range $75K – $100K · 17× MRR multiple
💸
~0.9× build cost (under-water)
Synthetic estimate. Multiple band derived from ad-supported + age, rating quality, category demand, and user-base maturity. Calibrated against 2024-2026 indie-app-marketplace closed-deal medians. Full math + comparable deal list on /methodology.
How the multiple was built
| 📺 Ad-supported base | 15× MRR |
| 📅 2.2y proven track record | +11% |
| ⭐ ★ rating ≥ 4.4 (solid) | +8% |
| 🏷 News category multiple | -5% |
Final multiple
17× MRR
👥 Estimated audience size
320K
Lifetime downloads (US-equivalent)
Monthly active
47K
Daily active
21K
Synthetic estimate from ratings × category benchmarks. Calibrated against 2024-2026 mobile-attribution retention + DAU/MAU reports. Numbers are US-storefront-equivalent — true global audience can be 5-10× larger for international apps. Full math + source list on /methodology.
How we sized it
| 📲 News engagement | ~120 installs / rating |
| 📅 2.2y of rating accumulation | -11% |
| 🔁 News D30 retention | 15% |
| 📍 DAU / MAU stickiness | 0.45 |
DAU / MAU
45% sticky
🛠 Estimated tech stack
🍎
Native iOS (SwiftUI)
Medium confidence · 70%
Also possible
Flutter
Heuristic guess from app bundle size, category, store description signals, and release-date stack era. Bumetric does not disassemble binaries — for binary-level certainty you would need an SDK intelligence tool or the manifest itself. Reasoning chain on the right. Full ruleset on /methodology.
Signals we read
| 📦 App bundle size | 75 MB |
| 🏷 Category context | News |
| 📦 Small-mid iOS bundle | → Native SwiftUI (post-2020 era) |
💀 Maintenance status
Active
5%
Last shipped 2026-09-03 · 21 days ago
0 · Active
50 · At risk
100 · Abandoned
Heuristic risk score from time-since-last-update + ratings velocity proxy + Editor's Choice / curated featuring signals. Calibrated against 2024-2025 app-store ranking decay reports. Not a guarantee — a quiet app with a healthy codebase looks the same as an abandoned one until something breaks. Full math on /methodology.
Risk signals
| 📅 21 days since last update | Active development |
Verdict
Active
🔬
How we forecast this revenue
MEDIUM CONFIDENCEBaseline
$5.0K/mo · ML-estimated from 234 triggers
Growth rate
+4.0% MoM · MID tier baseline (compound monthly)
Direction
Headwinds: low defensibility moat
6 months
$4.7K – $7.9K
12 months
$5.2K – $10.8K
24 months
$6.4K – $19.2K
Compound growth at +4.0% MoM (tier baseline for MID). Range widens with horizon — typical noise band ±25% at 6mo.. Ranges widen with horizon — distant futures carry more uncertainty.
📊
BU Investment Matrix
Below median · 47/100MID TIERunderperforming peersGrowth Velocity
5.0
Founder Strength
5.2
Product Quality
8.3
Revenue Strength
3.7
Monetization Maturity
1.0
Defensibility
2.5
Market Position
2.0
Operational Safety
10.0
- 💰 Revenue: Modest — $3K - $7K/mo · MID tier · medium confidence, trajectory unclear.
- ⭐ Quality: 4.63★ across 3,007 reviews — strong (top 10%).
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: Insufficient signal to assess trajectory.
- ⚠️ Risk: Low — no material risk signals detected.
🎯 For competitors: Mixed picture. Worth competing if you have a clear UX or pricing edge — otherwise crowded segment.
💵 For acquirers: Estimated asking range 18-32× monthly = $90K-$160K. Portfolio play ($14K/mo combined) commands premium.
Composite of 8 dimensions computed deterministically from public signals — no LLM, every score traces back to a measurable input. Default weights shown; "compete" / "acquire" / "invest" lenses re-weight without re-fetching.
Range:
💰 Forecast Revenue / mo
MODELRevenue forecast computed from BU's 234 trigger model on each snapshot. Calibrated against ground-truth from 58 verified-revenue apps.
🔬Forecast Breakdown — Why This Estimate?Top 8 of 8 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| subscriptionREVIEW | +$2,500 | |
| Excellent rating (4.6★)METRIC | +$2,200 | |
| bugsREVIEW | −$1,800 | |
| 5 starREVIEW | +$1,800 | |
| Low install base (3,007 ratings)METRIC | +$1,500 | |
| Ad-supported / freemiumMETRIC | +$600 | |
| Single-language (English only)METRIC | −$400 | |
| Growing app (2y old)METRIC | +$200 |
METRIC = structural app data · REVIEW = mined from user reviews · ✓ VERIFIED = Stripe-verified anchor (TrustMRR)
📈 Reviews Growth
LIVECumulative review count from first BU snapshot. Each point = a tracked update.
⭐ Rating Trend
LIVEAverage rating evolution. Updates with each new review batch.
🆕 What's New · v1.8.3
Minor bug fixes and performance improvements
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Stamp Identifier Value
- Developer
- Ngoc Anh Pham Thi
- Bundle ID
- com.ngocanh.stamp.identifier.collection
- App Store URL
- Open in App Store
- Category
- News
- Content rating
- 4+
- Languages
- EN
Company
- Website
- Not found
- Tagline
- Today
- Description
- Find apps and games for iPhone, iPad, Mac, and more on the App Store.
- Founded
- Not found
- HQ / Address
- Not found
- Employees
- Not found
- Logo
- Available
Revenue
- Reported revenue signal / mo
- Not found
- AI revenue estimate / mo
- Not found
- AI annual estimate
- Not found
- Model estimate / mo
- $5.0K/mo
- Top-grossing rank
- Outside top 100 in US News
- All-time revenue
- Not found
- Pricing
- Not found
Founder
Founder data not yet collected for this app.
Funding
Funding data not yet collected for this app.
Press & Links
Press & Links data not yet collected for this app.
Contacts & Socials
Contacts & Socials data not yet collected for this app.
📈Ratings growth3,458 ratings+69060% lifetimeShow 3-year history estimate ▾
Tracked (60 weeks) Pre-tracking estimate (0 weeks) · model-based, ±5% noise · anchored to release date and current value
🌍Geographic ReachNot ranked
This app is currently outside the top 100 grossing in all 9 countries we monitor (US, UK, DE, FR, JP, CA, AU, BR, IN). Niche or new apps often launch this way — popularity rankings appear once daily revenue clears the regional threshold.
🚀Update Frequency · Releases per Quarter10 releases tracked
🚀Version Release Timeline8 releases tracked
Profile is built from iTunes Lookup + developer site scrape + ML revenue model. Empty fields show "Not found" — additional sources (Crunchbase, X, IndieHackers, Acquire.com) coming.
📝 About this app
STAMP VALUE STAMP IDENTIFIER
Identify, value, and manage your stamp collection with ease.
Stamp Value Stamp Identifier uses advanced AI image recognition to instantly identify stamps and provide detailed information, including country of origin, issue date, denomination, and estimated market value.
Key Features:
• AI Stamp Identification – Scan stamps from a photo in seconds.
• Stamp Value Estimation – Discover the estimated value of individual stamps.
• Market Price Comparison – Compare values with current market listings and trends.… View full description on the official store →
Identify, value, and manage your stamp collection with ease.
Stamp Value Stamp Identifier uses advanced AI image recognition to instantly identify stamps and provide detailed information, including country of origin, issue date, denomination, and estimated market value.
Key Features:
• AI Stamp Identification – Scan stamps from a photo in seconds.
• Stamp Value Estimation – Discover the estimated value of individual stamps.
• Market Price Comparison – Compare values with current market listings and trends.… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →💾 75 MB🔞 4+📱 iOS 15.0+🔖 v1.8.3🔄 updated 3w ago🌐 EN📂 News💰 Paid🚀 Launched 2024 (2y old)
📅
What Worked™ · Development Pipeline
23 EVENTS TRACKEDDetected changes in this app over its tracked lifetime — each event links cause (what changed) to effect (what moved). Sorted newest first.See full history →Version history →
2026-09
🔧
Shipped update — v1.6.8 → v1.8.3
→ 30 days after: reviews +140 high confidence
2026-08
🔧
Shipped update — v1.6.6 → v1.6.8
→ 30 days after: reviews +174 medium · co-occurring
2026-07
🔧
Shipped update — v1.6.5 → v1.6.6
→ 30 days after: reviews +213 medium · co-occurring
2026-07
🔧
Shipped update — v1.6.3 → v1.6.5
→ 30 days after: reviews +99 low · multiple changes
2026-07
🔧
Shipped update — v1.6.2 → v1.6.3
→ 30 days after: reviews +99 medium · co-occurring
2026-07
🔧
Shipped update — v1.6.0 → v1.6.2
→ 30 days after: revenue +$14.3K/mo · reviews +127 medium · co-occurring
2026-07
🔧
Shipped update — v1.5.9 → v1.6.0
→ 30 days after: revenue +$14.3K/mo · reviews +134 medium · co-occurring
2026-06
🔧
Shipped update — v1.5.5 → v1.5.9
→ 30 days after: revenue +$14.3K/mo · reviews +179 medium · co-occurring
2026-06
🔧
Shipped update — v1.5.3 → v1.5.5
→ 30 days after: reviews +151 high confidence
2026-05
⭐
Rating ↑ 2.57 → 4.63 (improved 2.06★)
→ 30 days after: reviews +77 high confidence
2026-05
📈
Crossed 100 ratings — social-proof flywheel kicking in
→ 30 days after: reviews +77 high confidence
2026-03
⭐
Rating ↓ 4.50 → 2.57 (dropped 1.93★)
→ 30 days after: revenue −$541/mo · rating −1.93★ · reviews −312 medium · co-occurring
2026-03
📈
Crossed 100 ratings — social-proof flywheel kicking in
2026-03
⭐
Rating ↑ 2.60 → 4.50 (improved 1.90★)
2025-11
📈
Crossed 50 ratings — social-proof flywheel kicking in
→ 30 days after: reviews +5 high confidence
2025-03
⭐
Rating ↑ 2.69 → 3.35 (improved 0.66★)
→ 30 days after: rating −0.17★ high confidence
2025-02
⭐
Rating ↑ 1.86 → 2.69 (improved 0.83★)
→ 30 days after: rating +0.66★ · reviews +10 high confidence
2025-02
📈
Crossed 10 ratings — social-proof flywheel kicking in
→ 30 days after: rating +0.66★ · reviews +10 high confidence
2025-02
⭐
Rating ↑ 2.25 → 2.56 (improved 0.31★)
→ 30 days after: rating +1.49★ · reviews +19 medium · co-occurring
2025-02
📈
Crossed 10 ratings — social-proof flywheel kicking in
→ 30 days after: rating +1.49★ · reviews +19 medium · co-occurring
🌍
Multi-Country Performance
Available in 9 of 9 monitored markets| Market | Rating | Reviews | Current version |
|---|---|---|---|
| 🇦🇺 AU | 4.51724★ | 406 | 4.51724★ this version |
| 🇧🇷 BR | 4.90909★ | 11 | 4.90909★ this version |
| 🇨🇦 CA | 4.5216★ | 324 | 4.5216★ this version |
| 🇩🇪 DE | 4.42077★ | 183 | 4.42077★ this version |
| 🇫🇷 FR | 4.38431★ | 255 | 4.38431★ this version |
| 🇬🇧 GB | 4.58781★ | 558 | 4.58781★ this version |
| 🇮🇳 IN | 4.63636★ | 11 | 4.63636★ this version |
| 🇯🇵 JP | 4.5★ | 2 | 4.5★ this version |
| 🇺🇸 US | 4.62124★ | 3,493 | 4.62124★ this version |
🔔
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📝 Description
95
BU Score · Transcendent
Full revenue analysis
Read the article-style breakdown for Stamp Identifier Value: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
About this analysis
Why medium confidence: 3,007 ratings · no founder-verified revenue (model estimate only).
❓ Frequently Asked Questions
10 answers · auto-generated from this app's public dataHow much does Stamp Identifier Value make per month?▴
Based on our ML-calibrated revenue forecast, Stamp Identifier Value earns approximately $5.0K/mo. This is a US-storefront-equivalent estimate; global revenue can be several times larger for internationally-distributed apps. See the methodology page for the full formula and confidence bands.
Is Stamp Identifier Value profitable?▴
With estimated build cost $85K and monthly revenue $5.0K, Stamp Identifier Value looks break-even-grade — payback period sits around 1.4 years. Profitability also depends on paid-acquisition spend and refund rate which the public model doesn't see.
How many users does Stamp Identifier Value have?▴
Estimated audience: ~320K lifetime downloads, ~47K monthly active users, and ~21K daily active users. Derived from ratings count × category installs-per-rating × age decay. US-storefront-equivalent — global audience can be 5-10× larger for internationally-distributed apps.
What apps are like Stamp Identifier Value?▴
Browse the full News category catalog to find similar apps with revenue, build cost, audience and tech stack data. Each /p/{slug} page also shows a Compare side-by-side widget with three peer apps from the same niche.
What is Stamp Identifier Value built with?▴
Our heuristic places Stamp Identifier Value on the Native iOS (SwiftUI) stack (Medium confidence, 70%). Signals: app bundle size, category context, store-description markers, release-date era. We don't disassemble binaries. Alternative possibilities: Flutter.
Is Stamp Identifier Value still actively maintained?▴
Maintenance status: Active (5% abandonment risk). Last shipped version was 21 days ago. The risk score combines time-since-last-update with Editor's Choice / curated featuring + user-base maturity adjustments.
How much would Stamp Identifier Value sell for?▴
Estimated acquisition value: $75K (marketplace range $75K – $100K). Calculated as 17× monthly revenue using the standard multiple for the detected monetization model + adjustments for age, rating quality and category demand. Calibrated against 2024-2026 Flippa / Acquire.com / MicroAcquire closed-deal medians.
When was Stamp Identifier Value last updated?▴
Stamp Identifier Value last shipped a new version on 2026-09-03 — less than a month ago. This is the date Apple / Google last accepted a new build, not a content-only push.
Who makes Stamp Identifier Value?▴
Stamp Identifier Value is published by Ngoc Anh Pham Thi on the Apple App Store. See the full publisher portfolio (other apps by the same developer) via the More by developer block on the product page above.
What is Stamp Identifier Value's BU Score?▴
Stamp Identifier Value has a BU Score of 74/100 (Strong). The score combines App Store rating, ratings count, monetization model and revenue signals calibrated against founder-verified MRR anchors. See the BU Score formula.