34
BU Score
Emerging
Shift Master Shift Calendar
✍️ bumetric analysis
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Shift Master Shift Calendar is an iOS app from Gil Estes in the Productivity category, currently rated 2.2★ across 25 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.
Our BU Score puts it at 34: Emerging (early traction worth watching). For a Productivity app, that means early traction worth watching.
Track changes month-over-month in the Performance section below: live snapshot history and revenue forecast included.
📊 Performance Tracking LIVE
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Rating
—
Reviews
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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 8 of 8 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 | |
| excellent appREVIEW | +$1,500 | |
| Below-average rating (2.2★)METRIC | −$1,500 | |
| Mature app (15y old)METRIC | +$1,500 | |
| highly recommendREVIEW | +$1,400 | |
| Single-language (English only)METRIC | −$400 | |
| Pre-traction phase (25 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.
🗓️ Snapshot Timeline
HISTORYEach bar shows a tracked update and the metric delta from the previous snapshot.
App Specs
🔐 Own this app? Claim & verify MRR →💾 2 MB🔞 4+📱 iOS 9.0+🔖 v8.1🔄 updated 9y ago🌐 EN📂 Productivity💰 Paid🚀 Launched 2010 (15y old)
📝 About this app
Fully configurable Shift Calendar app for Firefighter, EMS and Paramedic Professionals. This app is now the flag ship app in the series and provides for full customization for up to 4 platoons/teams with single shift or first/second shift on a shift pattern rotation of up to 35 days in length.
🆕 What's New · v8.1
This update from Apple will improve the functionality of this app. No new features are included.
We have been busy working on the underpinnings so future updates can be handled in a quicker manner.
Look forward to seeing more changes and improvements soon.
We have been busy working on the underpinnings so future updates can be handled in a quicker manner.
Look forward to seeing more changes and improvements soon.
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Shift Master Shift Calendar
- Developer
- Gil Estes
- Bundle ID
- biz.cal30.shiftmaster
- App Store URL
- Open in App Store
- Category
- Productivity
- 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
- OG image
Revenue
- Verified revenue / mo
- Not found
- AI revenue estimate / mo
- Not found
- AI annual estimate
- Not found
- ML model estimate / mo
- $6.8K/mo
- Top-grossing rank
- Outside top 100 in US Productivity
- 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
- Not found
- 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/id1750986966
⭐Recent App Store Reviews49 latest · avg 2.47★ · 28.6% 5★ · 55.1% 1★
5★14 (29%)
4★3 (6%)
3★2 (4%)
2★3 (6%)
1★27 (55%)
+0 ratings/week
Praise: great ×19 recommend ×4 best ×2 excellent ×2 perfect ×2Complaints: crash ×4 terrible ×3 worst ×1 bug ×1
Top positive
★★★★★ Great
Best fire shift calendar I've run across, and the man provides updates based on user feedback.…
★★★★★ Perfect!!
Everything I needed Thank you…
Top negative
★☆☆☆☆ App gone from iPhone
App disappeared from iPhone after iOS update. Would appreciate info on how/when this will be resolved…
★☆☆☆☆ 🤬🤬
The app stopped working. Won’t open…
📈Ratings growth25 ratings+4% lifetimeShow 3-year history estimate ▾
Tracked (55 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.
Full revenue analysis
Read the article-style breakdown for Shift Master Shift Calendar: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.