59
Quality Score
Solid
UnderBooks
Low confidence
✍️ bumetric analysis
“
UnderBooks is an iOS app from Hryhorii Cherkaskyi in the Food & Drink category, currently rated 4.8★ across 16 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.
Quality Score is 59: Solid (established niche player). For a Food & Drink 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
$4.4K
per month
→
12-mo forecast
$3.8K – $13.8K
per month
→
24-mo forecast
$3.6K – $32.0K
per month
INDIE tier
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- Title & subtitle keyword fit
- Description hook & conversion structure
- Screenshots, ratings, reviews strategy
Typical impact: +2-5× organic installs
📊 Performance Tracking LIVE
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Rating
—
Reviews
—
Forecast Revenue / mo
—
Snapshots tracked
0
since first record
ONE-TIME · BUILD💰 Estimated build cost
$100K
↳ What it cost to build · not monthly revenue
Likely range $75K – $135K
$25K · MVP floor$100K · indie scale$500K+ · studio build
📈Pays back in ~10 months 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 |
| 📦Asset bundle (105 MB) | +$22K |
| ⚙Food & Drink complexity ×1.10 | +$7K |
| ⚙3.1y maintenance × ~1-person team | +$18K |
Total estimate$100K
ONE-TIME · EXIT VALUE💵 Estimated acquisition value
$175K
↳ What it would sell for · not monthly revenue
Marketplace range $125K – $225K · 18× MRR multiple
💸~1.8× build cost (break-even+)
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 |
| 📅3.1y proven track record | +16% |
| ⭐★ rating ≥ 4.7 (premium) | +15% |
| ⭐Small user base (<1K ratings) | -8% |
Final multiple18× MRR
🛠 Estimated tech stack
🍎
Native iOS (SwiftUI)
Medium confidence · 60%
Also possible
React NativeFlutter
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 | 105 MB |
| 🏷Category context | Food & Drink |
| 📦Mid-large iOS bundle | → Likely native SwiftUI (post-2020 era) |
💀 Maintenance status
At risk
40%
Last shipped 2025-12-18 · 157 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
| 📅5 months since last update | Slowing cadence |
| 👥Small user base (16 ratings) + 3.1y old | +10% (solo-project pattern) |
VerdictAt risk
🔬
How we forecast this revenue
MEDIUM CONFIDENCEBaseline
$4.4K/mo · ML-estimated from 234 triggers
Growth rate
+6.0% MoM · INDIE tier baseline (compound monthly)
Direction
Headwinds: rating drift may slow acquisition, low defensibility moat
6 months
$3.7K – $8.7K
12 months
$3.8K – $13.8K
24 months
$3.6K – $32.0K
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 · 42/100INDIE TIERexpected for tierRevenue Strength
3.6
Product Quality
3.8
Market Position
2.0
Growth Velocity
5.0
Defensibility
2.8
Operational Safety
10.0
Founder Strength
5.0
Monetization Maturity
1.0
- 💰 Revenue: Modest — $1K - $10K/mo · INDIE tier · medium confidence, trajectory unclear.
- ⭐ Quality: 4.75★ across 16 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 = $79K-$140K. Portfolio play ($9K/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 6 of 6 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 (4.8★)METRIC | +$2,200 | |
| highly recommendREVIEW | +$1,400 | |
| Established app (3y old)METRIC | +$800 | |
| Single-language (English only)METRIC | −$400 | |
| Pre-traction phase (16 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 →💾 105 MB🔞 4+📱 iOS 15.6+🔖 v1.3.2🔄 updated 5mo ago🌐 EN📂 Food & Drink💰 Paid🚀 Launched 2023 (3y old)
📝 About this app
Даша Астаф’єва випустила застосунок UnderBooks з аудіокнижками українських письменників.
Співачка Даша Астаф’єва разом із творчим колективом створила книжковий застосунок UnderBooks із перлинами української літератури минулого й сьогодення. Усю роботу: дослідження та пошук найкращих творів класиків і книжок сучасних маловідомих, але напрочуд потужних авторів — засновники проєкту взяли на себе, аби читач міг просто насолоджуватися слуханням.… View full description on the official store →
Співачка Даша Астаф’єва разом із творчим колективом створила книжковий застосунок UnderBooks із перлинами української літератури минулого й сьогодення. Усю роботу: дослідження та пошук найкращих творів класиків і книжок сучасних маловідомих, але напрочуд потужних авторів — засновники проєкту взяли на себе, аби читач міг просто насолоджуватися слуханням.… View full description on the official store →
🆕 What's New · v1.3.2
Виправлення багів та оптимізація застосунку
📅
What Worked™ · Development Pipeline
7 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
⭐
Rating ↑ 4.20 → 4.75 (improved 0.55★)
2026-05
🔄
Monetization changed: paid → free
2026-03
📈
Crossed 10 ratings — social-proof flywheel kicking in
2023-09
⭐
Rating ↑ 3.67 → 4.00 (improved 0.33★)
2023-09
⭐
Rating ↑ 3.00 → 3.67 (improved 0.67★)
2023-08
⭐
Rating ↑ 1.00 → 3.00 (improved 2.00★)
2023-08
🚀
First tracked snapshot — initial data captured
🌍
Multi-Country Performance
Available in 9 of 9 monitored markets| Market | Rating | Reviews | Current version |
|---|---|---|---|
| 🇺🇸 US | 4.76471★ | 17 | 4.76471★ this version |
| 🇬🇧 GB | 4.88889★ | 9 | 4.88889★ this version |
| 🇩🇪 DE | 5★ | 6 | 5★ this version |
| 🇫🇷 FR | 0★ | 0 | — |
| 🇯🇵 JP | 0★ | 0 | — |
| 🇨🇦 CA | 4★ | 11 | 4★ this version |
| 🇦🇺 AU | 0★ | 0 | — |
| 🇧🇷 BR | 0★ | 0 | — |
| 🇮🇳 IN | 0★ | 0 | — |
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Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- UnderBooks
- Developer
- Hryhorii Cherkaskyi
- Bundle ID
- com.cherkaskyi.underbooks
- 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
- $9.6K/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.
📈Ratings growth16 ratings+700% lifetimeShow 3-year history estimate ▾
Tracked (9 weeks) Pre-tracking estimate (35 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 analysis
Why low confidence: only 16 ratings · no founder-verified revenue (model estimate only) · revenue figure is directional only.
📌 Final verdict — read this before you trust the numbers above
UnderBooks is a small / niche iOS app in the food & drink space with weak public traction — only 16 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
7 answers · auto-generated from this app's public dataHow much does UnderBooks make per month?▴
Our model estimates UnderBooks earns roughly $9.6K/mo, but with only 16 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 UnderBooks?▴
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 UnderBooks built with?▴
Our heuristic places UnderBooks on the Native iOS (SwiftUI) stack (Medium confidence, 60%). Signals: app bundle size, category context, store-description markers, release-date era. We don't disassemble binaries. Alternative possibilities: React Native, Flutter.
Is UnderBooks still actively maintained?▴
Maintenance status: At risk (40% abandonment risk). Last shipped version was 5 months ago. The risk score combines time-since-last-update with Editor's Choice / curated featuring + user-base maturity adjustments.
When was UnderBooks last updated?▴
UnderBooks last shipped a new version on 2025-12-18 — 5 months ago. This is the date Apple / Google last accepted a new build, not a content-only push.
Who makes UnderBooks?▴
UnderBooks is published by Hryhorii Cherkaskyi 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 UnderBooks's BU Score?▴
UnderBooks has a BU Score of 59/100 (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.