Stamp Identifier Value
64
Quality Score
Solid
Stamp Identifier Value
Medium confidence
✍️ bumetric analysis
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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 mixed reviews: supporters praise core features while critics cite stability and value gaps.
Quality Score is 64: Solid (established niche player). For a News app, that means established niche player. 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
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Rating
—
Reviews
—
Forecast Revenue / mo
—
Snapshots tracked
0
since first record
ONE-TIME · BUILD
💰 Estimated build cost
$70K
↳ What it cost to build · not monthly revenue
Likely range $50K – $95K
$25K · MVP floor
$100K · indie scale
$500K+ · studio build
📈
Slow ROI — current MRR is well below build cost
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 (70 MB) | +$7K |
| ⚙ News complexity ×1.20 | +$11K |
Total estimate
$70K
👥 Estimated audience size
360K
Lifetime downloads (US-equivalent)
Monthly active
54K
Daily active
24K
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 |
| 🔁 News D30 retention | 15% |
| 📍 DAU / MAU stickiness | 0.45 |
DAU / MAU
44% sticky
🔬
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 · 44/100MID TIERunderperforming peersRevenue Strength
3.7
Product Quality
8.3
Market Position
2.0
Growth Velocity
5.0
Defensibility
2.5
Operational Safety
10.0
Founder Strength
2.9
Monetization Maturity
1.0
- 💰 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.
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 7 of 7 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| 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 (1y 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.
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
- Verified revenue / mo
- Not found
- AI revenue estimate / mo
- Not found
- AI annual estimate
- Not found
- ML model estimate / mo
- $86/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 growth3,007 ratings+1057% lifetimeShow 3-year history estimate ▾
Tracked (52 weeks) Pre-tracking estimate (21 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.
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
The "Stamp Value Stamp Identifier" app leverages advanced image recognition technology to efficiently identify and appraise stamps. It provides comprehensive details about stamps, including their origin, issue date, denomination, and market value, aiding collectors in making well-informed decisions. With an intuitive interface and rich educational resources, it enhances the stamp collecting experience for users at all levels.
Subscriptions automatically renew unless auto-renewal is canceled at least 24 hours before the end of the current period.… View full description on the official store →
Subscriptions automatically renew unless auto-renewal is canceled at least 24 hours before the end of the current period.… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →💾 70 MB🔞 4+📱 iOS 15.0+🔖 v1.5.3🔄 updated 0d ago🌐 EN📂 News💰 Paid
📅
What Worked™ · Development Pipeline
11 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 →
2026-05
⭐
Rating ↑ 2.57 → 4.63 (improved 2.06★)
2026-05
📈
Crossed 100 ratings — social-proof flywheel kicking in
2026-03
⭐
Rating ↓ 4.50 → 2.57 (dropped 1.93★)
2026-03
⭐
Rating ↑ 2.60 → 4.50 (improved 1.90★)
2026-03
📈
Crossed 100 ratings — social-proof flywheel kicking in
2025-11
📈
Crossed 50 ratings — social-proof flywheel kicking in
2025-02
⭐
Rating ↑ 2.25 → 2.56 (improved 0.31★)
2025-02
📈
Crossed 10 ratings — social-proof flywheel kicking in
2025-02
⭐
Rating ↑ 1.86 → 2.25 (improved 0.39★)
2025-01
⭐
Rating ↑ 1.33 → 1.86 (improved 0.53★)
2024-07
🚀
First tracked snapshot — initial data captured
🌍
Multi-Country Performance
Available in 9 of 9 monitored markets| Market | Rating | Reviews | Current version |
|---|---|---|---|
| 🇺🇸 US | 4.6287★ | 3,073 | 4.6287★ this version |
| 🇬🇧 GB | 4.55388★ | 464 | 4.55388★ this version |
| 🇩🇪 DE | 4.38854★ | 157 | 4.38854★ this version |
| 🇫🇷 FR | 4.39409★ | 203 | 4.39409★ this version |
| 🇯🇵 JP | 4.5★ | 2 | 4.5★ this version |
| 🇨🇦 CA | 4.54035★ | 285 | 4.54035★ this version |
| 🇦🇺 AU | 4.52561★ | 371 | 4.52561★ this version |
| 🇧🇷 BR | 4.83333★ | 6 | 4.83333★ this version |
| 🇮🇳 IN | 4.55556★ | 9 | 4.55556★ 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
4 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 $86/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.
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.
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 64/100 (Solid). The score combines App Store rating, ratings count, monetization model and revenue signals calibrated against founder-verified MRR anchors. See the BU Score formula.