- Accesibility improvements
- UI enhancements
- Fix compatibility issues with older devices

UI optimization

bugfix on the same bond date.

Performance optimization

Bugfix in setting issue.

bugfix for iOS 13.

Save calculator memory and restore in next launch.

minor bug fix.

1. Bug fix on iPad bottom button not responding, and Apple Watch TVM calculation.
2. Optimization on interest rate algorithm.

bug fix on big number input.

now on Apple Watch.

upgrade to iOS 8.

minor bug fix.

bug fix on EU number format.

we bring back the old interface as many of you requested:

1. add an option to switch between the old interface and iOS 7 style interface.

minor bug fixes.

1. support iPad to be an universal app.
2. redesign for iOS 7.

iOS 7 optimization.

iOS 7 optimization.

ready for iOS 7.

Upgrade to BA II Plus Professional version with additions:
• Net future value (NFV, Compute-only Cash Flow worksheet variable)
• Payback - (PB, Compute-only Cash Flow worksheet variable)
• Discounted payback (DPB, Compute-only Cash Flow worksheet variable)
• Reinvestment rate (RI, Enter-only Cash Flow worksheet variable)
• Modified internal rate of return (MOD, Compute-only Cash Flow worksheet variable)
• Modified duration (DUR, Auto-compute Bond worksheet variable)

minor bug fix and new key click sound.

minor bug fix in statistics calculation.

add iPhone 5 support.

minor bug fix.

fix a bug in scientific format display