This advanced financial calculator app is designed for financial planners and all other users to aid their daily financial planning/calculations (TVM, NPV, IRR, loans, tips) and international investments/travels.

Specifically, the app contains:
1. Recent and historical currency exchange rate trackers/converters:
* Supports over 160 currencies, precious metals
* Cryptocurrencies: Bitcoin, Ethereum, Litecoin, Dogecoin and Cardano.
* Online and off-line mode.
* User-defined currency exchange tracking list.
* Currency symbols are shown with rates.
* Historical currency exchange rates.
* View historical rate changes via line/bar charts or email data in CSV, PDF or JPEG files.

2. World Clock:
* User-defined list of countries to track.
* Auto refresh of clocks every second.
* Clocks with day light saving time are annotated.
* 12hr/24hr digital time clock display option.
* Analog clock display option.
* Country flags are displayed in tracking list.

3. Time Value of Money:
Calculate present value, future value, annuity (ordinary or due), annual interest rate or term of an investment.

4. Net Present Value and Internal Rate of Return:
Aid users in their cash flow analysis by computing the NPV and IRR of their investments.

5. Tip Calculator:
* Calculate tips, sales taxes and split bill payments.
* Calculate total bill by allowing users to enter individual bill item's amount into a table.

6. Auto Loan Calculator:
* Calculate monthly auto loan payment, term or the maximum affordable auto price.
* Option to specify trade-in value is taxable or not.
* Option to include or exclude sales tax in loan.
* Amortization table.
* View amortization in bar/line charts or email the data in CSV files.

7. Mortgage Loan Calculator:
* Calculate mortgage payment and interest APR.
* Calculate monthly or biweekly payment amount.
* Calculate any private mortgage insurance (PMI) payment.
* Amortization table and email data in CSV files.
* View amortization in bar/line charts and email charts in PDF or JPEG files.
* Allow users to compare two mortgages programs in terms of monthly payments, total interests paid and loan terms.
* Allow users to determine how much money and time they may save by refinancing their mortgage.

8. Credit Card or Loan Calculator:
* Calculate personal/commercial loan payment, term or maximum loan amount that can be borrowed.
* Calculate credit card monthly payment, term, or maximum balance that can be charged.
* Simple interest and various compound interest options.
* User-specified number of payments and payment frequency.

9. Compound Investment:
Calculate the total return, initial investment, interest rate, term or regular deposit/withdraw of your compound or simple-interest investments.

10. Bond Investment:
Calculate Yield to Maturity, bond duration and Yield to Call.

11. Retirement Planning Calculator:
Calculate either the annual amount needed to be saved to reach a retirement goal, or the amount will be saved when reaching retirement and how many years it will last.

12. Depreciation calculation and depreciation table:
* Calculate straight-line, declining-balance or sum-of-the-years-digits depreciation.
* Depreciation table.

13. Equipment Lease Calculator:
Calculate either the monthly payment or the annual yield rate of a lease.

14. Unit Conversion:
Convert temperature, weight, distance, and liquid units.

15. Statistics and Percentage Calculator:
Calculate the mean, weighted mean, median, standard deviation/variance, linear estimation, permutation, combination and percentage calculations.

Added to all the above, you may customize the app's main view background color to blue, indigo, magenta, green, black, aquamarine, etc., via the app's Settings menu.