Plus Minus: Simple Account Book app for iPhone and iPad

"Plus Minus" is usable and functional account book.

Features:
- Fast input with simple operation
- Easy to understand in icon view
- Support multiple assets

Major Functions:
- Customization for expense and income categories
- Customization for assets
- Check of wasteful spending
- Setting of budget and check of record and balance for each category
- Check of balance and unpaid amount for each asset
- Fund transfer between assets
- CSV import and export (UTF-8/UTF-16)
- Auto-Lock (Unlock by passcode or Touch ID)
- Repeat (periodical expense/income) registration
- Display (List/Calendar) and search for expense and income history