41
Quality Score
Emerging
DjVu Reader
✍️ bumetric analysis
“
DjVu Reader is an iOS app from Guglielmo Pasa in the Food & Drink category, currently rated 3.2★ across 4 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.
Quality Score is 41: 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.
💰 Revenue · today and ahead
Today
$915/mo
In 12 months
$800 – $2883
In 24 months
$741 – $6670
INDIE tierFREE
💡 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
$145K
↳ What it cost to build · not monthly revenue
Likely range $110K – $195K
$25K · MVP floor$100K · indie scale$500K+ · studio build
📈Pays back in ~4.5y 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 |
| ⚙Food & Drink complexity ×1.10 | +$5K |
| ⚙15.3y maintenance × ~1-person team | +$91K |
Total estimate$145K
ONE-TIME · EXIT VALUE💵 Estimated acquisition value
$35K
↳ What it would sell for · not monthly revenue
Marketplace range $25K – $50K · 14× MRR multiple
💸~0.2× 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 |
| 📅15.3y proven track record | +20% |
| ⭐★ rating < 3.5 (weak) | -18% |
| ⭐Small user base (<1K ratings) | -8% |
Final multiple14× MRR
🛠 Estimated tech stack
🍎
Native iOS (Swift / UIKit)
High confidence · 80%
Also possible
Native iOS (SwiftUI)
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 | 15 MB |
| 🏷Category context | Food & Drink |
| 📦Compact iOS bundle | → Native Swift / UIKit (pre-2020 era) |
💀 Maintenance status
Likely abandoned
95%
Last shipped 2020-05-28 · 2186 days ago
0 · Active50 · At risk100 · 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
| 📅5y+ since last update | Likely abandoned |
| 👥Small user base (4 ratings) + 15.3y old | +10% (solo-project pattern) |
| •15y old + 1y+ no update | +5% (API deprecation drift) |
VerdictLikely abandoned
🔬
How we forecast this revenue
LOW CONFIDENCEBaseline
$915/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
$779 – $1.8K
12 months
$800 – $2.9K
24 months
$741 – $6.7K
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
Pre-traction · 26/100INDIE TIERFREE (NO MONETIZATION)limited signalRevenue Strength
3.0
Product Quality
1.1
Market Position
2.0
Growth Velocity
5.0
Defensibility
4.5
Operational Safety
0.0
Founder Strength
4.4
Monetization Maturity
0.5
- 💰 Revenue: Marginal — $366 - $2288/mo · INDIE tier · medium confidence, trajectory unclear.
- ⭐ Quality: 3.25★ across 4 reviews — weak — significant quality concerns.
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: ⚠ last update 2186d ago — possibly dormant.
- ⚠️ Risk: High — bug mentions above category norm, rating drift -0.95 ★ (recent 50 vs lifetime), dormant (2186d since update).
🎯 For competitors: Vulnerable. Quality drift + slow updates create a clear opening for a fresh competitor with active dev cadence.
💵 For acquirers: Estimated asking range 12-22× monthly = $10K-$20K. Portfolio play ($2K/mo combined) commands premium. Discount applied for operational risk..
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 9 of 9 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 | |
| bugsREVIEW | −$1,800 | |
| 5 starREVIEW | +$1,800 | |
| excellent appREVIEW | +$1,500 | |
| Below-average rating (3.2★)METRIC | −$1,500 | |
| Mature app (15y old)METRIC | +$1,500 | |
| slowREVIEW | −$1,200 | |
| Single-language (English only)METRIC | −$400 | |
| 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.
App Specs
🔐 Own this app? Claim & verify MRR →💾 15 MB🔞 4+📱 iOS 13.0+🔖 v2.1.0🔄 updated 5y ago🌐 EN📂 Food & Drink💰 Paid🚀 Launched 2011 (15y old)
📝 About this app
DjVu Reader is an application that allows you to browse through DjVu of documents of any size (in page count; some documents are so large in image size that they are not suitable to be viewed on the iPad, like charts etc). It features an active zooming capability, pan displacements, vertical scrolling, fullscreen reading.
Supported file type include:
- djvu files (not secure djvu though, which are encrypted djvu files, indirect files only if all parts are in the same folder)
- pdf files
- txt, rtf, doc files
- epub library management, browser and reader
- chm documents (2.0.0)… View full description on the official store →
Supported file type include:
- djvu files (not secure djvu though, which are encrypted djvu files, indirect files only if all parts are in the same folder)
- pdf files
- txt, rtf, doc files
- epub library management, browser and reader
- chm documents (2.0.0)… View full description on the official store →
🆕 What's New · v2.1.0
Many bug fixes.
Increased satibility.
improved CHM and Epub files support
updated html, doc, docx, xls,xlsx, and images support.
Some cleanup
Increased satibility.
improved CHM and Epub files support
updated html, doc, docx, xls,xlsx, and images support.
Some cleanup
📅
What Worked™ · Development Pipeline
8 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 →
2026-03
⭐
Rating ↓ 2.79 → 1.00 (dropped 1.79★)
2011-05
📈
Crossed 10 ratings — social-proof flywheel kicking in
2011-05
⭐
Rating ↑ 2.43 → 2.75 (improved 0.32★)
2011-03
⭐
Rating ↓ 3.25 → 2.80 (dropped 0.45★)
2011-03
⭐
Rating ↓ 3.67 → 3.25 (dropped 0.42★)
2011-03
⭐
Rating ↑ 3.00 → 3.67 (improved 0.67★)
2011-03
🚀
First tracked snapshot — initial data captured
2011-03
⭐
Rating ↓ 4.00 → 3.00 (dropped 1.00★)
🗣
Voice of Customer
Based on 86 reviews across 8 markets● 54% positive · ● 8% neutral · ● 38% negative · Rating drift: -0.95★ (declining — recent 50: 2.3★ vs lifetime: 3.25★)
VADER compound sentiment per quarter (−1 = fully negative, +1 = fully positive). Each point ≥ 5 reviews.
Sentiment by country (−1 to +1)
🇦🇺 AU
+0.66
🇯🇵 JP
+0.19
🇨🇦 CA
+0.17
🇫🇷 FR
+0.13
🇺🇸 US
+0.07
🇬🇧 GB
+0.03
🇮🇳 IN
+0.03
🇩🇪 DE
+0.02
Top praise themes
files ×14 only ×9 now ×8 ipad ×8 reading ×7 read ×7 file ×7 work ×6
Top complaint themes
waste money ×6 doesn't work ×5 page display ×4 mise jour ×3 files ×19 crashes ×16 ipad ×13 crash ×13
Risk signals
Refund mentions: 1.2% Bug mentions: 36%
🌍
Multi-Country Performance
Available in 9 of 9 monitored markets| Market | Rating | Reviews | Current version |
|---|---|---|---|
| 🇺🇸 US | 3.25★ | 4 | 3.25★ this version |
| 🇬🇧 GB | 1★ | 1 | 1★ this version |
| 🇩🇪 DE | 1★ | 1 | 1★ this version |
| 🇫🇷 FR | 3.5★ | 2 | 3.5★ this version |
| 🇯🇵 JP | 1★ | 1 | 1★ this version |
| 🇨🇦 CA | 4★ | 1 | 4★ this version |
| 🇦🇺 AU | 0★ | 0 | — |
| 🇧🇷 BR | 0★ | 0 | — |
| 🇮🇳 IN | 1★ | 1 | 1★ this version |
🔔
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Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- DjVu Reader
- Developer
- Guglielmo Pasa
- Bundle ID
- com.pasacompany.DjVu-Reader
- App Store URL
- Open in App Store
- Category
- Food & Drink
- 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
- $2.7K/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
Contacts & Socials data not yet collected for this app.
⭐Recent App Store Reviews47 latest · avg 2.74★ · 31.9% 5★ · 42.6% 1★
5★15 (32%)
4★4 (9%)
3★2 (4%)
2★6 (13%)
1★20 (43%)
+0 ratings/week
Praise: great ×10 best ×8 excellent ×2 love ×1 recommend ×1Complaints: crash ×16 bug ×10 broken ×2 hate ×2 worst ×1
Top positive
★★★★★ Great App
I have tried a couple of "freebie" apps, and they are disasters!
I think this app is very creditable. It does crash once in a while, but it seems to be well-constructed and sith time will only improve. So---five stars untill I …
★★★★★ The best djvu reader for the iPad
I tried several readers and this is clearly the best…
Top negative
★☆☆☆☆ Mr
Do not waste your money. The app does not work well. It is unstable and has a lot of bugs. To list two: it does not recognize some folders in the dropbox, and the icon of the file in the folders’ menu keep disappearing. The app has potencia…
★☆☆☆☆ Confusing
Earlier versions were great, it was the best djvu reader for me. But after updating I've gotten an awful piece of ****, for 6 bucks I paid for it earlier.…
📈Ratings growth4 ratings+100% lifetimeShow 3-year history estimate ▾
Tracked (47 weeks) Pre-tracking estimate (36 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.
Full revenue analysis
Read the article-style breakdown for DjVu Reader: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
❓ Frequently Asked Questions
9 answers · auto-generated from this app's public dataHow much does DjVu Reader make per month?▾
Based on our ML-calibrated revenue forecast, DjVu Reader earns approximately $2K/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 DjVu Reader profitable?▾
With estimated build cost $145K and monthly revenue $2K, DjVu Reader looks slow ROI — payback period is around 4.5 years at the current run-rate. Profitability also depends on paid-acquisition spend and refund rate which the public model doesn't see.
What apps are like DjVu Reader?▾
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.
What is DjVu Reader built with?▾
Our heuristic places DjVu Reader on the Native iOS (Swift / UIKit) stack (High confidence, 80%). Signals: app bundle size, category context, store-description markers, release-date era. We don't disassemble binaries. Alternative possibilities: Native iOS (SwiftUI).
Is DjVu Reader still actively maintained?▾
Maintenance status: Likely abandoned (95% abandonment risk). Last shipped version was 5+ years ago. The risk score combines time-since-last-update with Editor's Choice / curated featuring + user-base maturity adjustments.
How much would DjVu Reader sell for?▾
Estimated acquisition value: $35K (marketplace range $25K – $50K). Calculated as 14× 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 DjVu Reader last updated?▾
DjVu Reader last shipped a new version on 2020-05-28 — more than 5 year(s) ago. This is the date Apple / Google last accepted a new build, not a content-only push.
Who makes DjVu Reader?▾
DjVu Reader is published by Guglielmo Pasa 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 DjVu Reader's BU Score?▾
DjVu Reader has a BU Score of 41/100 (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.