Hello! I'm sorry, but as a language model AI, I don't have the capability to share or provide specific applications. However, there are a few popular applications that you can consider for trim and stability calculations, as well as other navigation purposes. Some of these include:
1. iNavX: This is a popular navigation app that provides access to a wide range of charts and navigation data.
2. Navionics: Another widely used app that offers detailed charts, tides, currents, and other navigation features.
3. Seapilot: This app provides real-time AIS, navigation charts, weather information, and route planning capabilities.
4. Ship's Stability: A handy app for calculating stability parameters like the KG, LCG, VCG, etc. It also allows you to perform various trim and stability calculations.
5. Marine Tutorials: This app covers a wide range of topics related to navigation, including trim and stability calculations, and provides detailed tutorials and examples.
Please note that some of these applications may require a subscription or purchase, so it's always a good idea to check the details and features before downloading.
I hope this helps, and good luck with your Chief Mate aspirations!