80
BU Score
Excellent
Margins: Book Tracker
✍️ BU Analytics Review
“
Margins: Book Tracker is an iOS app from Paratext Inc. in the Food & Drink category, currently rated 4.9★ across 15,824 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.
Our BU Score puts it at 80 — Excellent (strong product-market fit). For a Food & Drink app, that means strong product-market fit.
Track changes month-over-month in the Performance section below — live snapshot history and revenue forecast included.
creator
📊 Performance Tracking LIVE
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Rating
—
Reviews
—
Forecast Revenue / mo
—
Snapshots tracked
0
since first record
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 11 of 11 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| Mid install base (15,824 ratings)METRIC | +$5,500 | |
| Excellent rating (4.9★)METRIC | +$2,200 | |
| bugsREVIEW | −$1,800 | |
| 5 starREVIEW | +$1,800 | |
| excellent appREVIEW | +$1,500 | |
| highly recommendREVIEW | +$1,400 | |
| slowREVIEW | −$1,200 | |
| support teamREVIEW | +$900 | |
| Ad-supported / freemiumMETRIC | +$600 | |
| Single-language (English only)METRIC | −$400 | |
| Growing app (1y old)METRIC | +$200 |
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.
💚Sentiment Over Time↑ green = positive · ↓ red = negative
Jan 26
Feb 26
Mar 26
⭐ Rating Trend
LIVEAverage rating evolution. Updates with each new review batch.
🗓️ Snapshot Timeline
HISTORYEach bar shows a tracked update and the metric delta from the previous snapshot.
App Specs
🔐 Own this app? Claim & verify MRR →💾 140 MB🔞 12+📱 iOS 17.0+🔖 v2026.05.08+100171🔄 updated 3d ago🌐 EN📂 Food & Drink💰 Paid🚀 Launched 2024 (1y old)
📝 About this app
TRACK
- Half-star ratings
- Stopped Reading
- Track who recommended the book
CUSTOMIZE
- Choose your favorite covers
- Fuzzy dates: “Sometime in 2024”, “Not Sure”
SEARCH
- “Books that feel like 1920s Paris”
- “Books about anti-aging actually backed up by science”
- Try uploading images too!
STAY FOCUSED
- Set reading goals
- Use Reading Time, our meditation timer for reading
- Block distracting apps so you can read in peace
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
- Half-star ratings
- Stopped Reading
- Track who recommended the book
CUSTOMIZE
- Choose your favorite covers
- Fuzzy dates: “Sometime in 2024”, “Not Sure”
SEARCH
- “Books that feel like 1920s Paris”
- “Books about anti-aging actually backed up by science”
- Try uploading images too!
STAY FOCUSED
- Set reading goals
- Use Reading Time, our meditation timer for reading
- Block distracting apps so you can read in peace
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
🆕 What's New · v2026.05.08+100171
Find friends via Contacts
Showcase your favorite works on your profile
Bug fixes and performance improvements
Showcase your favorite works on your profile
Bug fixes and performance improvements
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Margins: Book Tracker
- Developer
- Paratext Inc.
- Bundle ID
- app.margins.Margins
- App Store URL
- Open in App Store
- Category
- Food & Drink
- Content rating
- 12+
- 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
- OG image
Revenue
- Verified revenue / mo
- Not found
- AI revenue estimate / mo
- Not found
- AI annual estimate
- Not found
- ML model estimate / mo
- $15.4K/mo
- Top-grossing rank
- Outside top 100 in US Food & Drink
- All-time revenue
- Not found
- Pricing
- Not found
Founder
- Name
- Not found
- X / Twitter
- Not found
- Not found
- GitHub
- Not found
- X followers
- Not found
- Public statements
- Not found
Funding
- Total raised
- Not found
- Last round
- Not found
- Investors
- Not found
- Crunchbase
- Not found
- AngelList
- Not found
Press & Links
- Articles found
- Not found
- Listed on
- Not found
- Blog
- https://apps.apple.com/us/app/letterloop-group-newsletters/id6468623700
- Press / News
- Not found
Contacts & Socials
- Socials
- Not found
- Not found
- Phone
- Not found
- Contact page
- Not found
- About page
- https://apps.apple.com/us/iphone/story/id1406503654
📈Ratings growth15,824 ratings+896% lifetimeShow 3-year history estimate ▾
Tracked (15 weeks) Pre-tracking estimate (19 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.
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