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49
Quality Score
Emerging

Open Library Reader

ZCAnalyzed by Zakhar Chumak · founder, bumetric·Methodology
3.0 ✍️ Editor
✍️ bumetric analysis

Open Library Reader is an iOS app from Loomis House, LLC in the Food & Drink category, currently rated 3.0★ across 49 ratings. Initial signal reads as mostly critical sentiment so far: users flag rough edges and unmet expectations.

Quality Score is 49: 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
$500/mo
In 12 months
$437 – $1575
In 24 months
$405 – $3644
INDIE tierFREE
💡 Grow this revenue

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📊 Performance Tracking LIVE

Loading…
idle
0%
Rating
Reviews
Forecast Revenue / mo
Snapshots tracked
0
since first record
ONE-TIME · BUILD💰 Estimated build cost
$85K
What it cost to build · not monthly revenue
Likely range $65K – $115K
$25K · MVP floor$100K · indie scale$500K+ · studio build
📈Pays back in ~8 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
Food & Drink complexity ×1.10+$5K
4.8y maintenance × ~1-person team+$28K
Total estimate$85K
ONE-TIME · EXIT VALUE💵 Estimated acquisition value
$150K
What it would sell for · not monthly revenue
Marketplace range $100K – $175K · 14× 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 base15× MRR
📅4.8y proven track record+20%
★ rating < 3.5 (weak)-18%
Small user base (<1K ratings)-8%
Final multiple14× MRR
🛠 Estimated tech stack
🍎
Native iOS (SwiftUI)
High confidence · 80%
Also possible
Native iOS (Swift / UIKit)

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 size24 MB
🏷Category contextFood & Drink
📦Compact iOS bundle→ Native SwiftUI (post-2020 era)
💀 Maintenance status
Slowing
25%
Last shipped 2026-04-01 · 52 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
📅52 days since last updateHealthy release cadence
👥Small user base (49 ratings) + 4.8y old+10% (solo-project pattern)
VerdictSlowing
🔬

How we forecast this revenue

LOW CONFIDENCE
Baseline
$500/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
$426 – $993
12 months
$437 – $1.6K
24 months
$405 – $3.6K
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 · 29/100INDIE TIERFREE (NO MONETIZATION)limited signal
RevenueQualityMarketGrowthMoatSafetyFounderMonetiz.
Revenue Strength
2.7
Product Quality
0.9
Market Position
2.0
Growth Velocity
5.0
Defensibility
3.2
Operational Safety
4.1
Founder Strength
5.0
Monetization Maturity
0.5
  • 💰 Revenue: Marginal — $200 - $1250/mo · INDIE tier · medium confidence, trajectory unclear.
  • ⭐ Quality: 3.04★ across 49 reviews — weak — significant quality concerns.
  • 📍 Market: Not yet charting in any of the 9 monitored markets.
  • 📈 Growth: Insufficient signal to assess trajectory.
  • ⚠️ Risk: Elevated — bug mentions above category norm, rating drift -0.68 ★ (recent 50 vs lifetime).
🎯 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 = $6K-$11K. Portfolio play ($10K/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

MODEL
Revenue 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:
5 starREVIEW
+$1,800
Below-average rating (3.0★)METRIC
−$1,500
Established app (4y old)METRIC
+$800
Ad-supported / freemiumMETRIC
+$600
Single-language (English only)METRIC
−$400
Pre-traction phase (49 ratings)METRIC
−$300
METRIC = structural app data · REVIEW = mined from user reviews · ✓ VERIFIED = Stripe-verified anchor (TrustMRR)

📈 Reviews Growth

LIVE
Cumulative review count from first BU snapshot. Each point = a tracked update.

⭐ Rating Trend

LIVE
Average rating evolution. Updates with each new review batch.
App Specs
🔐 Own this app? Claim & verify MRR →
💾 24 MB🔞 4+📱 iOS 13.0+🔖 v2.0.0+23🔄 updated 1mo ago🌐 EN📂 Food & Drink💰 Paid🚀 Launched 2021 (4y old)

📝 About this app

Open Library is an online library with millions of books to browse or check out. You can track the books that you're reading, want to read, etc. and read many of them right there.

PLEASE NOTE: This app is an interface to the openlibrary.org web site — if you don't use that site to read books, you may have trouble figuring out what the app is for. I encourage you to familiarize yourself with the site first, and then you'll understand what the app offers.

This app is one reader's effort to create the ideal portable experience for taking advantage of Open Library's amazing collection.… View full description on the official store →

🆕 What's New · v2.0.0+23

Welcome to the all new, completely rebuilt OL Reader! It looks the same, and all your favorite features are still there, but it's all new under the hood and there are some great new features:

• More information on the shelf pages, including book counts and author names… Full release notes →
📅

What Worked™ · Development Pipeline

5 EVENTS TRACKED
Detected 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 →
2023-07
📈
Crossed 10 ratings — social-proof flywheel kicking in
2023-07
Rating ↓ 4.13 → 3.78 (dropped 0.35★)
2023-03
Rating ↓ 4.50 → 4.00 (dropped 0.50★)
2022-05
Rating ↓ 5.00 → 4.60 (dropped 0.40★)
2021-08
🚀
First tracked snapshot — initial data captured
🗣

Voice of Customer

Based on 33 reviews across 4 markets
● 67% positive  ·  ● 18% neutral  ·  ● 15% negative  ·  Rating drift: -0.68★ (declining — recent 50: 2.36★ vs lifetime: 3.04★)
Sentiment by country (−1 to +1)
🇦🇺 AU
+0.38
🇺🇸 US
+0.37
🇬🇧 GB
+0.04
🇨🇦 CA
-0.09
Top praise themes
read books ×3 full screen ×3 reading ×6 page ×6 mode ×5 book ×5 adjust ×3
Top complaint themes
login screen ×4 past login ×3 sign ×8 read ×5 account ×5 doesn ×5 page ×5 log ×4
Risk signals
Bug mentions: 6%
🌍

Multi-Country Performance

Available in 9 of 9 monitored markets
MarketRatingReviewsCurrent version
🇺🇸 US3.04082★493.04082★ this version
🇬🇧 GB1.83333★61.83333★ this version
🇩🇪 DE2.83333★62.83333★ this version
🇫🇷 FR5★15★ this version
🇯🇵 JP3★23★ this version
🇨🇦 CA1★31★ this version
🇦🇺 AU1.5★61.5★ this version
🇧🇷 BR0★0
🇮🇳 IN3.5★23.5★ this version
🔔

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Profile & Insights

Everything we know — and don't — about this app and its company.

Identification

App name
Open Library Reader
Developer
Loomis House, LLC
Bundle ID
com.loomis-house.olreader
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
$10.4K/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 Reviews25 latest · avg 2.56★ · 24.0% 5★ · 48.0% 1★
5★
6 (24%)
4★
2 (8%)
3★
4 (16%)
2★
1 (4%)
1★
12 (48%)
+1 ratings/week
Praise: great ×6 love ×5 favorite ×1 fantastic ×1 best ×1Complaints: broken ×1
Top positive
★★★★★ Fantastic app!
This app is wonderful for reading books from Open Library! It’s so much better than trying to read a book on a web browser, and very easy to use. It has cool features, like bookmarks, 3 different shelves, and more.…
★★★★★ Most enjoyable way to read Open Library books
Open Library by Internet Archive has thousands of books to borrow for free, but the reading experience on mobile devices is not good. This app changes that, especially with the full screen reading mode, sortable shelves, and search. It is a…
Top negative
★☆☆☆☆ Awful
It opens a book with this bubble on top with instructions but I can’t figure out how to get rid of the bubble so I can actually read the book!…
★☆☆☆☆ Great resource! But it lost my whole history.
I was so excited to see how many classic text books were available to borrow for research in my field. I spent an hour searching by the names of several favorite scholars and putting them in my “To Read” collection. Then I logged out and tr…
📈Ratings growth49 ratings+4800% lifetimeShow 3-year history estimate ▾Aug 2021Aug 2024May 2026
Tracked (26 weeks) Pre-tracking estimate (34 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.

Similar apps in Food & Drink

Full revenue analysis
Read the article-style breakdown for Open Library Reader: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
Read deep-dive →

Frequently Asked Questions

9 answers · auto-generated from this app's public data
How much does Open Library Reader make per month?
Based on our ML-calibrated revenue forecast, Open Library Reader earns approximately $10K/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 Open Library Reader profitable?
With estimated build cost $85K and monthly revenue $10K, Open Library Reader looks profitable — pays back its estimated build cost in roughly 8 months 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 Open Library 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 Open Library Reader built with?
Our heuristic places Open Library Reader on the Native iOS (SwiftUI) 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 (Swift / UIKit).
Is Open Library Reader still actively maintained?
Maintenance status: Slowing (25% abandonment risk). Last shipped version was 1 months ago. The risk score combines time-since-last-update with Editor's Choice / curated featuring + user-base maturity adjustments.
How much would Open Library Reader sell for?
Estimated acquisition value: $150K (marketplace range $100K – $175K). 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 Open Library Reader last updated?
Open Library Reader last shipped a new version on 2026-04-01 — 1 months ago. This is the date Apple / Google last accepted a new build, not a content-only push.
Who makes Open Library Reader?
Open Library Reader is published by Loomis House, 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 Open Library Reader's BU Score?
Open Library Reader has a BU Score of 49/100 (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.