duoBooks: Читати з перекладом
52
Quality Score
Solid
duoBooks: Читати з перекладом
Low confidence
✍️ bumetric analysis
“
duoBooks: Читати з перекладом is an iOS app from PlainProg LLC in the News category, currently rated 4.5★ across 28 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.
Quality Score is 52: 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
$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
$65K
↳ What it cost to build · not monthly revenue
Likely range $50K – $90K
$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 (56 MB) | +$2K |
| ⚙ News complexity ×1.20 | +$10K |
Total estimate
$65K
🔬
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 · 35/100MICRO TIERtoo early to scoreGrowth Velocity
5.0
Founder Strength
2.9
Product Quality
3.6
Revenue Strength
2.3
Monetization Maturity
1.0
Defensibility
3.4
Market Position
0.0
Operational Safety
10.0
- 💰 Revenue: Marginal — $0 - $500/mo · MICRO tier · indicative confidence, trajectory unclear.
- ⭐ Quality: 4.46★ across 28 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:
| Multilingual (41 languages)METRIC | +$1,500 | |
| Good rating (4.5★)METRIC | +$800 | |
| Established app (5y old)METRIC | +$800 | |
| Ad-supported / freemiumMETRIC | +$600 | |
| Pre-traction phase (28 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 · v6.6
Improved audio quality
Minor improvements and maintenance
Minor improvements and maintenance
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- duoBooks: Читати з перекладом
- Developer
- PlainProg LLC
- Bundle ID
- com.plainprog.duobk
- App Store URL
- Open in App Store
- Category
- News
- Content rating
- 12+
- Languages
- SQ, HY, AZ, BN, BG, HR, CS, DA, NL, EN, ET, FI, FR, KA, DE, EL, HI, HU, ID, IT, JA, KO, LV, LT, MK, MS, NB, PL, PT, RO, RU, SR, ZH, SL, ES, SV, TH, ZH, TR, UK, VI
Company
- Website
- Not found
- Tagline
- Studying languages made simple!
- 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
- $86/mo
- Top-grossing rank
- Outside top 100 in US News
- All-time revenue
- Not found
- Pricing
- Not found
Founder
- Name
- Not found
- X / Twitter
- twitter.com/duoBooksApp
- linkedin.com/products/plainprog-duobooks
- GitHub
- Not found
- X followers
- Not found
- Public statements
- Not found
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 growth28 ratings+87% lifetimeShow 3-year history estimate ▾
Tracked (8 weeks) Pre-tracking estimate (37 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 any book in any language with instant translation into your native language.
We offer short stories designed specifically for beginner language learners. Alternatively, you can add any book from your device and read with translation whatever you want.
Break any sentence into clear pieces and see every word explained in context. Instantly understand how the sentence works, what each word means, and how it fits into the full translation.
In our app, you will also have your personal dictionary where you can keep your vocabulary in one place and easily review it whenever you want.… View full description on the official store →
We offer short stories designed specifically for beginner language learners. Alternatively, you can add any book from your device and read with translation whatever you want.
Break any sentence into clear pieces and see every word explained in context. Instantly understand how the sentence works, what each word means, and how it fits into the full translation.
In our app, you will also have your personal dictionary where you can keep your vocabulary in one place and easily review it whenever you want.… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →💾 56 MB🔞 12+📱 iOS 15.0+🔖 v6.6🔄 updated 0d ago🌐 SQ, HY, AZ, BN, BG +36📂 News💰 Paid
📅
What Worked™ · Development Pipeline
6 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
🔄
Monetization changed: freemium → free
2026-03
⭐
Rating ↑ 3.40 → 4.70 (improved 1.30★)
2026-03
📈
Crossed 10 ratings — social-proof flywheel kicking in
2026-03
⭐
Rating ↓ 4.00 → 3.40 (dropped 0.60★)
2025-01
⭐
Rating ↓ 5.00 → 4.00 (dropped 1.00★)
2023-09
🚀
First tracked snapshot — initial data captured
🔔
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📝 Description
95
BU Score · Transcendent
About this analysis
Why low confidence: only 28 ratings · no founder-verified revenue (model estimate only) · revenue figure is directional only.
📌 Final verdict — read this before you trust the numbers above
duoBooks: Читати з перекладом is a small / niche iOS app in the news space with weak public traction — only 28 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 duoBooks make per month?▴
Our model estimates duoBooks earns roughly $86/mo, but with only 28 ratings the confidence interval is wide. No founder-verified MRR is available for this app, so this is a model output calibrated against comparable apps in the same category. See methodology for the formula.
What apps are like duoBooks?▴
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 duoBooks?▴
duoBooks is published by PlainProg LLC 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 duoBooks's BU Score?▴
duoBooks has a BU Score of 52/100 (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.