圖書館多重帳戶登入
0
Quality Score
Niche
✍️ bumetric analysis
“
圖書館多重帳戶登入 is an Android app from ephrain in the Books & Reference category, currently rated — across few ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.
Quality Score is 0: Niche (micro-niche or pre-traction stage). For a Books & Reference app, that means micro-niche or pre-traction stage. 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
$200
per month
→
12-mo forecast
$100 – $931
per month
→
24-mo forecast
$100 – $2790
per month
MICRO 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
$75K
↳ What it cost to build · not monthly revenue
Likely range $55K – $100K
$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 |
| ⚙ Books & Reference complexity ×0.95 | $-2525 |
| 🌐 Cross-platform reach (iOS + Android) | +$26K |
Total estimate
$75K
🔬
How we forecast this revenue
LOW CONFIDENCEBaseline
$200/mo · ML-estimated from 234 triggers
Growth rate
+8.0% MoM · MICRO tier baseline (compound monthly)
Direction
Headwinds: rating drift may slow acquisition
6 months
$127 – $508
12 months
$100 – $931
24 months
$100 – $2.8K
Compound growth at +8.0% MoM (tier baseline for MICRO). Range widens with horizon — typical noise band ±60% at 6mo.. Ranges widen with horizon — distant futures carry more uncertainty.
📊
BU Investment Matrix
Insufficient data · 30/100MICRO TIERtoo early to scoreGrowth Velocity
5.0
Founder Strength
2.8
Product Quality
0.0
Revenue Strength
2.3
Monetization Maturity
1.0
Defensibility
6.0
Market Position
0.0
Operational Safety
7.0
- 💰 Revenue: Marginal — $0 - $500/mo · MICRO tier · indicative confidence, trajectory unclear.
- ⭐ Quality: None★ across 0 reviews — weak — significant quality concerns.
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: ⚠ last update 576d ago — possibly dormant.
- ⚠️ Risk: Moderate — dormant (576d since update).
🎯 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 = $3K-$6K.
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.
📈 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
- 圖書館多重帳戶登入
- Developer
- ephrain
- Bundle ID
- idv.ephrain.multilibrarylogin
- App Store URL
- Open in App Store
- Category
- Books & Reference
- Content rating
- Not found
- Languages
- Not found
Company
- Website
- ephrain.net
- 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
- $376/mo
- Top-grossing rank
- Not found
- 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.
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
<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>
Note: This app was developed by myself and is not an official program.
If you have any questions or suggestions, please contact the author directly.
So as not to cause trouble in the library, thank you! :)
<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>
----------------------------------
Because my family has several library cards,
So every time you can borrow a lot of books to go home,
But when you go to the library website,
Need to log in to different accounts one by one.
In order to query borrowing books and appointment records, etc.
Quite inconvenient.… View full description on the official store →
Note: This app was developed by myself and is not an official program.
If you have any questions or suggestions, please contact the author directly.
So as not to cause trouble in the library, thank you! :)
<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>
----------------------------------
Because my family has several library cards,
So every time you can borrow a lot of books to go home,
But when you go to the library website,
Need to log in to different accounts one by one.
In order to query borrowing books and appointment records, etc.
Quite inconvenient.… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →🔖 v3.131.1🔄 updated 0d ago📂 Books & Reference💰 Free📺 Ad-supported
🔔
Track this app’s revenue
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📝 Description
95
BU Score · Transcendent
More by ephrain
View all →📦 Portfolio summaryINDIE studio
2apps·$57/mocombined
⚠ Concentrated — top app contributes 100% of combined revenue (single-app dependency)
About this analysis
Why low confidence: only 0 ratings · no founder-verified revenue (model estimate only) · revenue figure is directional only.
📌 Final verdict — read this before you trust the numbers above
圖書館多重帳戶登入 is a very early-stage Android app in the books & reference space with weak public traction — only 0 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
3 answers · auto-generated from this app's public dataHow much does 圖書館多重帳戶登入 make per month?▴
Low-confidence model estimate. 圖書館多重帳戶登入 has only 0 App Store ratings, so our revenue model has very little signal to work with — treat the ~$375/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 圖書館多重帳戶登入?▴
Browse the full Books & Reference 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 圖書館多重帳戶登入?▴
圖書館多重帳戶登入 is published by ephrain on the Google Play Store. See the full publisher portfolio (other apps by the same developer) via the More by developer block on the product page above.