Big Brown ToolKit Downloads & RevenueBig Brown ToolKit · App Store
Big Brown ToolKit is #147 in Reference Paid in United States and charting in 1 of 30 countries we track.
Updated 11 Nov 2026 · rankings refresh through the day
DeveloperStealth Productions Limited
CategoryReference
Price4.99 USD
Released
Rating★ 5.0 (6)
Version2.3
Age rating4+
First seen by us
27 Sep 2026
27 Sep 2026Installs (est.)100+ worldwide
Full timeline · 3 events
- 🆕Big Brown ToolKit first spotted by AppInsider#50 in Top Paid · Reference · United States
- 📦Big Brown ToolKit version 2.3Update to 'Contact Times' tool
- 🆕Big Brown ToolKit released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
5.0 ★
6 ratings
Measured
Best rank now
#147
Reference PaidMeasured
Big Brown ToolKit on the App Store
App details
App ID
6475022221
Publisher
Stealth Productions Limited
On the store since
Dec 2023
2 years on the store
Minimum OS
iOS 15.0+
iPhone 6s and later
Devices
iPhone · iPad
Content rating
4+
Languages
1
EN
Size
25 MB
Big Brown ToolKit 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. App Store 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.
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 30 countries.
| Country | Charts | Rank |
|---|---|---|
| United States | ReferencePaid | #147 |
Apps near Big Brown ToolKit on the chart
Reference Paid, around #147.
Ratings
App Store, worldwide.
Rating
5.0 ★
6 ratings
Measured
Ratings
6
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
under 1
4-week average
Lifetime rating
5.0★
recent stars not readable yet: new ratings are a tiny share of the total
Review momentum
20/100
faster than 0% of Reference apps
Review momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
About Big Brown ToolKit
This ToolKit is intended to assist aircrew in their day to day activities.
Features:
• Domestic and International Duty Period calc
• Required Rest calc
• Common aviation unit conversion calc
• Cross Wind and Cross Wind Limit calc
• 8 digit Runway State decoder
• SNOWTAM decoder
• Crew Rest timing calc
• Whose Segment random selector
• Late Arrival Pay calc
• Exchange Rate calc
• Meteorological Decode
• Low Temperature Altimetry calc
• Density Altitude calc
• Turn Rate/Radius calc
• Generic volume/weight fuel calc
• Sick Day Tracker
• Linear and bilinear integration tool
This ToolKit can calculate Domestic and International Duty Period limitations for the various types of operations.
The Cross Wind calc can be used to determine cross wind and head/tail wind values for a given runway and wind direction/speed along with the maximum wind strength from the set wind direction for a given cross wind limit.
The Runway State decoder can be used to quickly decode weather reports that may contain the standard 8-digit code. This can be useful for Moscow flights etc.
The SNOWTAM tool will provide assistance in decoding standard GRF SNOWTAMs.
The Meteorological Decode tool that will allow you to quickly decode significant present and forecast weather codes (i.e. +TSRA).
The Last Pushback Time calc will calculate the required pushback time to allow you to achieve an on-blocks time inside your max FDP time taking into consideration sector time and taxi times. You will also be able to set a Notification to alert you that you have passed the Last Pushback Time.
The Low Temperature Altimetry calc can be used to determine altitude corrections for MSA and approaches conducted in low temperatures.
The MEL Rectification calc will provide the expiry date for a deferred defect given the DD entry date and the rectification interval category.
The Linear and bilinear integration tool for those occasions where you have to use tables.
Features:
• Domestic and International Duty Period calc
• Required Rest calc
• Common aviation unit conversion calc
• Cross Wind and Cross Wind Limit calc
• 8 digit Runway State decoder
• SNOWTAM decoder
• Crew Rest timing calc
• Whose Segment random selector
• Late Arrival Pay calc
• Exchange Rate calc
• Meteorological Decode
• Low Temperature Altimetry calc
• Density Altitude calc
• Turn Rate/Radius calc
• Generic volume/weight fuel calc
• Sick Day Tracker
• Linear and bilinear integration tool
This ToolKit can calculate Domestic and International Duty Period limitations for the various types of operations.
The Cross Wind calc can be used to determine cross wind and head/tail wind values for a given runway and wind direction/speed along with the maximum wind strength from the set wind direction for a given cross wind limit.
The Runway State decoder can be used to quickly decode weather reports that may contain the standard 8-digit code. This can be useful for Moscow flights etc.
The SNOWTAM tool will provide assistance in decoding standard GRF SNOWTAMs.
The Meteorological Decode tool that will allow you to quickly decode significant present and forecast weather codes (i.e. +TSRA).
The Last Pushback Time calc will calculate the required pushback time to allow you to achieve an on-blocks time inside your max FDP time taking into consideration sector time and taxi times. You will also be able to set a Notification to alert you that you have passed the Last Pushback Time.
The Low Temperature Altimetry calc can be used to determine altitude corrections for MSA and approaches conducted in low temperatures.
The MEL Rectification calc will provide the expiry date for a deferred defect given the DD entry date and the rectification interval category.
The Linear and bilinear integration tool for those occasions where you have to use tables.
Latest updates
2.3
Update to 'Contact Times' tool
