Lios Calibre Viewer
46
Quality Score
Emerging
Lios Calibre Viewer
Low confidence
✍️ bumetric analysis
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Lios Calibre Viewer is an iOS app from Antonio Torres in the Food & Drink category, currently rated 4.3★ across 3 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.
Quality Score is 46: Emerging (early traction worth watching). For a Food & Drink app, that means early traction worth watching. 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
$55K
↳ What it cost to build · not monthly revenue
Likely range $40K – $75K
$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 |
| ⚙ Food & Drink complexity ×1.10 | +$5K |
Total estimate
$55K
🔬
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 · 36/100MICRO TIERtoo early to scoreRevenue Strength
2.3
Product Quality
3.5
Market Position
0.3
Growth Velocity
5.0
Defensibility
3.6
Operational Safety
10.0
Founder Strength
3.5
Monetization Maturity
1.0
- 💰 Revenue: Marginal — $0 - $500/mo · MICRO tier · indicative confidence, trajectory unclear.
- ⭐ Quality: 4.33★ across 3 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 = $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.
🔬Forecast Breakdown — Why This Estimate?Top 5 of 5 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| Paid app ($2.99)METRIC | +$2,800 | |
| Good rating (4.3★)METRIC | +$800 | |
| New app (4 months old)METRIC | −$700 | |
| Single-language (English only)METRIC | −$400 | |
| Pre-traction phase (3 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 · v2.8
for 2.2 I've added a dedicated tablet view that better uses the tablet screen. I've also added support for the reader comic book formats. CBZ/CBR . I've also updated the password scheme to work better with calibre password protected libraries.… Full release notes →
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Lios Calibre Viewer
- Developer
- Antonio Torres
- Bundle ID
- Lionardos-Workshop.Lios-Calibre-Viewer
- App Store URL
- Open in App Store
- Category
- Food & Drink
- Content rating
- 4+
- Languages
- EN
Company
- Website
- Not found
- Tagline
- Lionardo's Workshop
- Description
- Lionardo's Workshop develops powerful intuitive iOS and macOS applications, including Lio Price Browser for price tracking, Lios Calibre Viewer for e-book reading, and Lio Music Manager for music library organization.
- 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 Food & Drink
- 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
- Socials
- github github.com/Davinchy
- davinchy@lionardosworkshop.com
- Phone
- Not found
- Contact page
- lionardosworkshop.com/support.html
- About page
- Not found
⭐Recent App Store Reviews1 latest · avg 4.0★ · 0% 5★ · 0% 1★
5★0 (0%)
4★1 (100%)
3★0 (0%)
2★0 (0%)
1★0 (0%)
+0 ratings/week
Top positive
★★★★☆ Nice but…
Unable to get this to work with Calibre cloud running in a docker container. Connects to instance but presents an Error “Unable to parse data” when attempting to sync.…
📈Ratings growth3 ratings+200% lifetimeShow 3-year history estimate ▾
Tracked (4 weeks) Pre-tracking estimate (5 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
View your entire calibre library streamed from your host computer to your iPad or iPhone. Download the books to the device and read the books anywhere. Organize your books by category or by the books you choose to download. Your entire library of book names and cover art are stored locally for quick browsing. The books are only downloaded on device when you choose to download them, saving space on your phone or tablet.
App Specs
🔐 Own this app? Claim & verify MRR →💾 11 MB🔞 4+📱 iOS 16.0+🔖 v2.8🔄 updated 0d ago🌐 EN📂 Food & Drink💰 Paid
🧪
Tech & Domain Intel — lionardosworkshop.com
- Mail provider
- Amazon SES
- Tech stack
- AWS SES
Derived from public RDAP + DNS TXT records (no scraping, no login).
🔔
Track this app’s revenue
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📝 Description
95
BU Score · Transcendent
More by Antonio Torres
View all →📦 Portfolio summaryINDIE studio
2apps·$287/mocombined
Lead-app heavy — top app contributes 70%
About this analysis
Why low confidence: only 3 ratings · no founder-verified revenue (model estimate only) · revenue figure is directional only.
📌 Final verdict — read this before you trust the numbers above
Lios Calibre Viewer is a very early-stage iOS app in the food & drink space with weak public traction — only 3 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 Lios Calibre Viewer make per month?▴
Low-confidence model estimate. Lios Calibre Viewer has only 3 App Store ratings, so our revenue model has very little signal to work with — treat the ~$86/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 Lios Calibre Viewer?▴
Browse the full Food & Drink 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 Lios Calibre Viewer?▴
Lios Calibre Viewer is published by Antonio Torres 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 Lios Calibre Viewer's BU Score?▴
Lios Calibre Viewer has a BU Score of 46/100 (Emerging). The score combines App Store rating, ratings count, monetization model and revenue signals calibrated against founder-verified MRR anchors. See the BU Score formula.