Adding Machine 10Key Univ Lite funktioniert nicht

Strategic Finance (Tools of the Trade): "If you're looking for a professional desk calculator that can give you full 10-key accounting functions with a tape you can name and save, edit, e-mail, or print, check out Interlocken's 10 Key for iPad". ● Behaves the same as a '10 Key' adding machine. ● Export a PDF file to iBooks©, DropBox©, Email, or your favorite printing utility. ● TypeTone - a major innovation to aid accurate key entry using audio feedback (iPad version). ● 400 lines of paper tape history (full version). ● International number formatting (Settings -> General -> International -> Region Format -> select region). Q1.  This is the full version of Adding Machine 10Key Univ, but with a reduced number of paper tape lines & some other limitations.  Both calculators are single-column adding machines or calculators with full-size (1:1) keypads and are optimized for the iPad User Interface. '10 Key' behaves the same as a 10 Key Adding Machine with reversed operator entry while ‘Accountant Calc’ supports the free chaining of +, -, x, /, %, √, 1/x and is easier to use if you are not familiar with how a '10-key' works. A2.  Export paper tape files to iBooks©, Dropbox©, Email or your favorite printing utility (see the FAQs).  'Adding Machine 10Key Univ Lite' behaves like a true '10 Key' or 'printing calculator' such as those made by Monroe, Casio, Sharp and others.  Open-In will cause a menu of 3rd party Apps to appear that can receive a hardcopy of your paper tape; for example, iBooks, DropBox, and 3rd party printer Apps for Brother, HP, Epson, Canon and more.  You can find the full version by searching for 'Adding Machine 10Key Univ' by Richard Silverman in the App Store.  The iPad version features a full sized (1:1) keypad with TypeTone, a unique audio aid to help guide your finger back to the center of a key.  What is the difference between this App, 'Adding Machine 10Key Univ', and 'Accountant Universal for iPad' in the App. Store.? A1.  How can I edit an incorrect number or add & delete lines from the paper tape? A3.  Touch any line of the paper tape to go into edit mode.  Tell me about Email, Printing, and Exporting a Paper Tape. A4.  A total is obtained by pressing the asterisk (*), operator entry is reversed, and percentages are obtained by multiplying and adding to a stream of numbers.  Save & retrieve paper tape files.  From the Export dialog, select from: Email, Print, Copy or Open-In.  The iPad version comes as close to touch-typing as a touch-screen can be. v2. 1 introduces TypeTone.