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Photo Friend is a no-frills exposure calculator app, for photographers and movie makers that know th

Touch 11i is an RPN scientific calculator for Android devices that emulates the beloved HP-11C. It i

Touch Fin is an RPN financial calculator. This app implements many features of the industry-standard

Touch 10i is a basic RPN scientific calculator. This app implements many features of the beloved HP-

Touch Fin Black-Scholes Edition is an RPN financial calculator. This app implements many features of

Touch Palladium is an RPN financial calculator. This app implements many features of the industry-st

Touch Fin is an RPN financial calculator. This app implements many features of the industry-standard

Touch 15i is an advanced RPN scientific calculator. This app implements many features of the beloved

Touch 16i is an RPN calculator for programmers and computing scientists. This app implements many fe

Touch 11i is an RPN scientific calculator. This app implements many features of the beloved HP-11C p