Roman Langrehr

  • Operation Sunrise Beta

    Operation Sunrise Beta

    FREE

    17.8.2096, 4:00pm UTC: A day like every other day until it started: One of the biggest disasters ever. Suddenly mysterious objects appeared in the sky. And a few minutes later, all stars and the sun disappeared. Actually, they didn't disappear, they just were not visible any more. The...

  • Electric Tangram

    Electric Tangram

    (61)

    (42)


    FREE

    Electric Tangram is a Brain & Puzzle-Game, where you have to finish an electric circuit. The goal is to make the light bulb glow and fill all the gaps (like in Classic Tangram). (But you don't need to connect all tiles!) Control: Move a tile from the lower part of the screen in the...

  • Report Forecast (for School)

    Report Forecast (for School)

    (58)

    (59)


    FREE

    This app is made for students/pupils. With this app you can save all grades/marks you get and the app calculates your report. Handling: With "+" button you can add subjects. With the small "+" button next to a subject you can add grades/marks. With the "X" you can...

  • Quadratic Equations

    Quadratic Equations

    (62)

    (9)


    FREE

    This app solves quadratic equations (ax²+bx+c=0), so you get the points where y=0. When you write in the first box a 0, you can also get the zero points of a linear equation. When the checkbox in menu-> Settings is checked, you also get complex numbers as results. When you want an older...

  • Linear Equations

    Linear Equations

    (77)

    (4)


    FREE

    This app calculates from the coordiantes of two points the equation of a line. Enter the coordinates in the fields and tap the button to get the equation "mx+n".

  • GPS Coordinates Converter

    GPS Coordinates Converter

    (64)

    (57)


    FREE

    In this app you can convert GPS coordinates from "degrees, minutes, decimal seconds" to "degrees, decimal sminutes" and "decimal degrees".(And the other way round) You can also locate your phone and read / convert the coordinates This is usefull, because many...

  • Random Generator

    Random Generator

    (54)

    (72)


    FREE

    This app selects a person/option/thing by lot. When you want, for example, a chance from 2:1, just enter in two textfields the same thing. Press the little plus at the bottom to add a textfield. To add more Textfields at once, you can type in the textfield right to the plus a higher number than...

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