Welcome to Barn Door Apps
Builders of useful and fun software for the iPhone, Android and other mobile devices.
Choo Choo Whistle
New version of Choo Choo Whistle is underway! Stay tuned for an all-new 3D experience.
Do you need a mobile app for an event or your business? If so then please contact me for pricing and availability.
CalcTriangle
The new iOS version of CalcTriangle is now available on the App Store!
We created this because we felt it would be a useful tool for carpenters and do-it-yourselfers that needed a fast way to calculate angles and lengths.
Our app is easier to use than others we have seen because you do not use the default numbers screen and you do not have to shift from one screen to another to enter data. Just select any two sides or any side and any angle and enter the dimensions you have. They can be done in foot mode, inch mode or decimal.
All you need to do is touch on the field you want to enter a dimension in the mode you are using. The inch mode will display the results in inches and the foot mode will display in feet and inches. The fractional values are rounded from the nearest decimal value.
You can start from the metric or english side of the application and switch back and forth. There is also different display values for each mode. In the English mode there is foot, inch and inch decimal. In Metric there is meter, centimeter and millimeter mode. The Mode button will cycle through each one.
To start over just push the clear button and it all resets. To clear a single angle or side field, select the field and push the Clear Field button.
Android Version Coming Soon
CalcTriangle for Android
We're bringing CalcTriangle to Android! Stay tuned for the Google Play release.
Choo Choo Whistle
We have created Choo Choo Whistle.
This started out as a way to distract my grandchildren while we were shopping. It works!
It also irritates the heck out of their parents (my children) which is just a bonus :)
A brand new 3D version of Choo Choo Whistle is currently in development!
Architecture & AI Services
I'm Phil Sacchitella — a software architect and developer with decades of experience designing and building systems across enterprise, mobile, and web platforms. I specialize in turning complex business requirements into clean, maintainable architectures and integrating modern AI capabilities into existing workflows.
Software Architecture
- C4 Model Diagrams — System context, container, component, and code-level architecture documentation
- Systems Design — Scalable architecture for new projects or modernization of legacy systems
- Architecture Reviews — Evaluate existing systems for performance, security, and maintainability
- Technical Documentation — Clear, actionable documentation that development teams can actually use
AI Integration & Automation
- LLM Integration — Integrate Claude, GPT, and other AI models into your existing applications and workflows
- Workflow Automation — Identify and automate repetitive processes using AI-powered solutions
- Intelligent Applications — Build AI-driven features into mobile and web applications
- AI Strategy Consulting — Evaluate where AI can deliver real value in your organization
Interested in working together? Get in touch to discuss your project.
Barn Door Apps LLC Privacy Policy
We don't store your data, period. Ever.
End of the policy.
Contact Us
Interested in mobile app development services? Have questions about our apps?
Feel free to reach out for pricing and availability.
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