PST Mail Viewer
58
Quality Score
Solid
PST Mail Viewer
Low confidence
✍️ bumetric analysis
“
PST Mail Viewer is an iOS app from 延平 陈 in the Productivity category, currently rated 5.0★ across 4 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.
Quality Score is 58: Solid (established niche player). For a Productivity 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
$1.3K
per month
→
12-mo forecast
$1.1K – $4.0K
per month
→
24-mo forecast
$1.0K – $9.1K
per month
INDIE 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
Loading…
Rating
—
Reviews
—
Forecast Revenue / mo
—
Snapshots tracked
0
since first record
ONE-TIME · BUILD
💰 Estimated build cost
$55K
↳ What it cost to build · not monthly revenue
Likely range $40K – $75K
$25K · MVP floor
$100K · indie scale
$500K+ · studio build
📈
Pays back in ~2.8y 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 |
| ⚙ Productivity complexity ×1.10 | +$5K |
Total estimate
$55K
ONE-TIME · EXIT VALUE
💵 Estimated acquisition value
$30K
↳ What it would sell for · not monthly revenue
Marketplace range $20K – $35K · 17× MRR multiple
💸
~0.5× 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 |
| ⭐ ★ rating ≥ 4.7 (premium) | +15% |
| 🏷 Productivity category multiple | +8% |
| ⭐ Small user base (<1K ratings) | -8% |
Final multiple
17× MRR
🔬
How we forecast this revenue
MEDIUM CONFIDENCEBaseline
$1.3K/mo · ML-estimated from 234 triggers
Growth rate
+6.0% MoM · INDIE tier baseline (compound monthly)
Direction
Headwinds: rating drift may slow acquisition
6 months
$1.1K – $2.5K
12 months
$1.1K – $4.0K
24 months
$1.0K – $9.1K
Compound growth at +6.0% MoM (tier baseline for INDIE). Range widens with horizon — typical noise band ±40% at 6mo.. Ranges widen with horizon — distant futures carry more uncertainty.
📊
BU Investment Matrix
Early-stage solo · 41/100INDIE TIERexpected for tierRevenue Strength
3.1
Product Quality
4.0
Market Position
2.0
Growth Velocity
5.0
Defensibility
3.6
Operational Safety
10.0
Founder Strength
4.5
Monetization Maturity
1.0
- 💰 Revenue: Modest — $502 - $3138/mo · INDIE tier · medium confidence, trajectory unclear.
- ⭐ Quality: 5.0★ across 4 reviews — weak — significant quality concerns.
- 📍 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 = $22K-$40K. Portfolio play ($2K/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 7 of 7 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| Paid app ($0.00)METRIC | +$2,800 | |
| Excellent rating (5.0★)METRIC | +$2,200 | |
| Multilingual (19 languages)METRIC | +$1,500 | |
| highly recommendREVIEW | +$1,400 | |
| slowREVIEW | −$1,200 | |
| New app (4 months old)METRIC | −$700 | |
| Pre-traction phase (4 ratings)METRIC | −$300 |
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 · v6.1.0
- Fixed text encoding issues that could affect French, Thai, and other non-English email content.
- Included general reliability and compatibility improvements.
- Included general reliability and compatibility improvements.
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- PST Mail Viewer
- Developer
- 延平 陈
- Bundle ID
- com.yenpi.pstviewer
- App Store URL
- Open in App Store
- Category
- Productivity
- Content rating
- 4+
- Languages
- AR, CS, NL, EN, FR, DE, HU, IT, JA, KO, PL, PT, RU, ZH, ES, TH, ZH, TR, VI
Company
- Website
- Not found
- Tagline
- Not found
- Description
- Not found
- Founded
- Not found
- HQ / Address
- Not found
- Employees
- Not found
- Logo
- Not found
Revenue
- Verified revenue / mo
- Not found
- AI revenue estimate / mo
- Not found
- AI annual estimate
- Not found
- ML model estimate / mo
- $1.6K/mo
- Top-grossing rank
- Outside top 100 in US Productivity
- 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 growth4 ratings+300% lifetimeShow 3-year history estimate ▾
Tracked (7 weeks) Pre-tracking estimate (6 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
Read & search Outlook PST & OST files
Open and explore Outlook PST & OST email archives directly on your iPhone or iPad. PST Mail Viewer lets you browse folders, read messages, and search emails — all offline and on your device.
Pay once. Use on iPhone, iPad & Mac.
No subscription. No ads.
Key Features
• Open PST & OST email archive files
• Browse folders and subfolders
• Read email subjects, senders, recipients, and dates
• View email body content (plain text and supported formats)
• Search emails by keyword
• Preview and export attachments
• Works offline — no internet connection required… View full description on the official store →
Open and explore Outlook PST & OST email archives directly on your iPhone or iPad. PST Mail Viewer lets you browse folders, read messages, and search emails — all offline and on your device.
Pay once. Use on iPhone, iPad & Mac.
No subscription. No ads.
Key Features
• Open PST & OST email archive files
• Browse folders and subfolders
• Read email subjects, senders, recipients, and dates
• View email body content (plain text and supported formats)
• Search emails by keyword
• Preview and export attachments
• Works offline — no internet connection required… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →💾 16 MB🔞 4+📱 iOS 16.0+🔖 v6.1.0🔄 updated 0d ago🌐 AR, CS, NL, EN, FR +14📂 Productivity💰 Paid
🌍
Multi-Country Performance
Available in 9 of 9 monitored markets| Market | Rating | Reviews | Current version |
|---|---|---|---|
| 🇺🇸 US | 5★ | 4 | 5★ this version |
| 🇬🇧 GB | 0★ | 0 | — |
| 🇩🇪 DE | 0★ | 0 | — |
| 🇫🇷 FR | 0★ | 0 | — |
| 🇯🇵 JP | 1★ | 1 | 1★ this version |
| 🇨🇦 CA | 0★ | 0 | — |
| 🇦🇺 AU | 0★ | 0 | — |
| 🇧🇷 BR | 0★ | 0 | — |
| 🇮🇳 IN | 0★ | 0 | — |
🔔
Track this app’s revenue
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📝 Description
95
BU Score · Transcendent
More by 延平 陈
View all →📦 Portfolio summaryINDIE studio
2apps·$2K/mocombined
Lead-app heavy — top app contributes 56%
Similar apps in Productivity
About this analysis
Why low confidence: only 4 ratings · no founder-verified revenue (model estimate only) · revenue figure is directional only.
📌 Final verdict — read this before you trust the numbers above
PST Mail Viewer is a very early-stage iOS app in the productivity space with weak public traction — only 4 ratings, no founder-verified MRR, and not ranked in any monitored grossing chart. The app appears to be monetised, but public signals are too sparse for a precise revenue estimate.
Bottom line: treat all revenue, audience and acquisition-value numbers on this page as directional only — not founder-verified facts.
❓ Frequently Asked Questions
4 answers · auto-generated from this app's public dataHow much does PST Mail Viewer make per month?▴
Low-confidence model estimate. PST Mail Viewer has only 4 App Store ratings, so our revenue model has very little signal to work with — treat the ~$1.6K/mo figure as directional only, not a verified MRR. No founder-verified revenue data is available for this app. See methodology for the formula and confidence bands.
What apps are like PST Mail Viewer?▴
Browse the full Productivity 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 PST Mail Viewer?▴
PST Mail Viewer is published by 延平 陈 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 PST Mail Viewer's BU Score?▴
PST Mail Viewer has a BU Score of 58/100 (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.