28
BU Score
Niche
BuildersCalcsRoof
✍️ bumetric analysis
“
BuildersCalcsRoof is an iOS app from Robert Thompson in the Utilities category, currently rated 2.4★ across 8 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.
Our BU Score puts it at 28: Niche (micro-niche or pre-traction stage). For a Utilities app, that means micro-niche or pre-traction stage.
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
—
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 5 of 5 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 | |
| Below-average rating (2.4★)METRIC | −$1,500 | |
| Mature app (15y old)METRIC | +$1,500 | |
| Single-language (English only)METRIC | −$400 | |
| Pre-traction phase (8 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 →💾 14 MB🔞 4+📱 iOS 10.0+🔖 v1.9🔄 updated 6y ago🌐 EN📂 Utilities💰 Paid🚀 Launched 2010 (15y old)
📝 About this app
BuildersCalcs ROOF With this IPhone App you can forget "Guesswork" and "Trial and Error" and make your
steel square redundant forever and bin the headache pills, because anyone with a Pencil,Bevel and Saw can
cut a "Hip Roof " with ease. This IPhone App is a Professional Roofing Carpenter in your pocket. Just enter
the relevant Dimensions into the program and be instantly provided with every Rafter, Hip and Jack Rafter
Length and Overhang Length plus all the Angle cuts and Birdsmouth Dimensions.
Will accommodate any size of Timber or Building including Small like Dolls houses / Modelwork and Large as
in Mansions. At the tap of a button a set of Dimensions is available for you to mark out a triangle and set your
bevel for marking out all the Angle cuts if you don't have a Protractor handy.
The program stores all your settings so you can recall them at any time.
The program works with two "Separate" modes of Entry, Metric and Imperial.
Metric Roof angles are entered in degrees.
Imperial can be entered with Slope or Degrees.
Separate comprehensive help files with each section of program.
Entry for any Timber size.
Caters for Soffit overhangs of up to 60 inches Imperial.
Any Dimension for Metric.
Check timber sizes to Eurocode 5.
Information provided by the Program includes.
COMMON RAFTER
* Length
* Overhang Length
* Plumb cut Angle
* Seat cut Angle
* Ridge Length for Hip Roof
* Birdsmouth Dimension
HIP RAFTER
* Length
* Overhang Length
* Plumb cut Angle
* Seat cut Angle
* Side cut Angle
* Birdsmouth Dimension
JACK RAFTER
* Length
* Overhang Length
* Plumb cut Angle
* Seat cut Angle
* Side cut Angle
* Shorten each Jack Dimension
* Birdsmouth Dimension
SETTING ANGLES
* Dimensions to create a triangle for marking out all Angles
steel square redundant forever and bin the headache pills, because anyone with a Pencil,Bevel and Saw can
cut a "Hip Roof " with ease. This IPhone App is a Professional Roofing Carpenter in your pocket. Just enter
the relevant Dimensions into the program and be instantly provided with every Rafter, Hip and Jack Rafter
Length and Overhang Length plus all the Angle cuts and Birdsmouth Dimensions.
Will accommodate any size of Timber or Building including Small like Dolls houses / Modelwork and Large as
in Mansions. At the tap of a button a set of Dimensions is available for you to mark out a triangle and set your
bevel for marking out all the Angle cuts if you don't have a Protractor handy.
The program stores all your settings so you can recall them at any time.
The program works with two "Separate" modes of Entry, Metric and Imperial.
Metric Roof angles are entered in degrees.
Imperial can be entered with Slope or Degrees.
Separate comprehensive help files with each section of program.
Entry for any Timber size.
Caters for Soffit overhangs of up to 60 inches Imperial.
Any Dimension for Metric.
Check timber sizes to Eurocode 5.
Information provided by the Program includes.
COMMON RAFTER
* Length
* Overhang Length
* Plumb cut Angle
* Seat cut Angle
* Ridge Length for Hip Roof
* Birdsmouth Dimension
HIP RAFTER
* Length
* Overhang Length
* Plumb cut Angle
* Seat cut Angle
* Side cut Angle
* Birdsmouth Dimension
JACK RAFTER
* Length
* Overhang Length
* Plumb cut Angle
* Seat cut Angle
* Side cut Angle
* Shorten each Jack Dimension
* Birdsmouth Dimension
SETTING ANGLES
* Dimensions to create a triangle for marking out all Angles
🆕 What's New · v1.9
Updated to work correctly on all iPhone screens and general improvements to the help files and made easier to use.
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- BuildersCalcsRoof
- Developer
- Robert Thompson
- Bundle ID
- com.buildcalcs.PRODUCTNAMErfc1034identifier
- App Store URL
- Open in App Store
- Category
- Utilities
- Content rating
- 4+
- Languages
- EN
Company
- Website
- www.tommy-software.co.uk
- Tagline
- Builders Calculators Home Screen
- 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 Utilities
- 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
- Not found
⭐Recent App Store Reviews5 latest · avg 2.4★ · 20.0% 5★ · 60.0% 1★
5★1 (20%)
4★1 (20%)
3★0 (0%)
2★0 (0%)
1★3 (60%)
+0 ratings/week
Praise: great ×1
Top positive
★☆☆☆☆ Worthless
Got this to figure common rafter lenghts. It wont even do that. Nothing here,but a picture show.…
★★★★☆ Pretty good
Not bad at all, intuitive and efficient…
Top negative
★☆☆☆☆ Don't waste money
Seemed like it would work to find common rafter measurements but locks up when you try to click on certain buttons. Don't buy…
★☆☆☆☆ Builder
Junk waste of money Ridiculous input requirements of length and width one must be longer then the other…
📈Ratings growth8 ratings+700% lifetimeShow 3-year history estimate ▾
Tracked (7 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.
More by Robert Thompson
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Full revenue analysis
Read the article-style breakdown for BuildersCalcsRoof: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.