Rafter Help
Rafter Help is #74 in Utilities Paid in United Kingdom and charting in 1 of 24 countries we track.
Updated 27 Sep 2026 · rankings refresh through the day
DeveloperArmchair Engineering
CategoryUtilities
Price1.99 GBP
Released
Rating★ 4.8 (319)
Version1.5.2
Age rating4+
First seen by us
25 Sep 2026
25 Sep 2026Installs (est.)10k+ worldwide
Rating
4.8 ★
319 ratings
Measured
Best rank now
#74
Utilities PaidMeasured
Rafter Help on the App Store
App details
App ID
1006188060
Publisher
Armchair Engineering
Minimum OS
iOS 10.0+
Content rating
4+
Languages
1
EN
Size
6 MB
Rafter Help downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. iPhone downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Where Rafter Help's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Where it ranks now
Every top chart it appears in across 24 countries.
| Country | Charts | Rank |
|---|---|---|
| United Kingdom | UtilitiesPaid | #74 |
Apps near Rafter Help on the chart
Utilities Paid, around #74.
Ratings
App Store, worldwide.
Rating
4.8 ★
319 ratings
Measured
Ratings
319
Measured
About Rafter Help
Rafter Help is the easiest way to calculate rafter length and associated values when building!
Quickly find roof pitch, rafter lengths and ridge height for gable roofs, based on room and ridge width.
Or calculate length values with more control from the Advanced tab.
Features Include:
- Accurately solve rafter equations
- Enter pitch steepness in radians, decimal degrees or degrees, minutes, seconds (DMS) or rise/run (e.g. 8/12)
- Enter lengths in mm, cm, inches or feet
- Select your preferred number of decimal places
Quickly find roof pitch, rafter lengths and ridge height for gable roofs, based on room and ridge width.
Or calculate length values with more control from the Advanced tab.
Features Include:
- Accurately solve rafter equations
- Enter pitch steepness in radians, decimal degrees or degrees, minutes, seconds (DMS) or rise/run (e.g. 8/12)
- Enter lengths in mm, cm, inches or feet
- Select your preferred number of decimal places
Latest updates
1.5.2
- Fixed floating keyboard bug, present on some devices running iOS 13
