Touch 11i by Elvis Pfutzenreuter (Universal)
Released: Sep 21, 2011
Version: 3.10
Size: 20 MB
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Ranking - Business (iPhone)

Ranking - Business (iPad)

Touch 11i

Elvis Pfutzenreuter
[ This app is no longer available for download ]

Touch 11i is a full-featured RPN calculator that implements most functions of the beloved HP-11C calculator. It is feature-complete (including programming and subroutines).


* Quick guide (touch right upper corner to show)
* In iPad, the quick guide is shown all the time in vertical orientation, and it can be scrolled in horizontal orientation.
* Copy to clipboard (touch left upper corner to copy)
* American, European and Indian decimal separators (touch ON to open Settings)
* Visual feedback for typing
* Audible feedback (touch ON to open Settings)
* Save memory to iCloud
* Vertical layout. Orientation can change with phone's rotation or stay fixed.

What's new in version 3.10
Support for iPhone X.

This is the last update for this app. All the RPN calculators will be consolidated into a single app in the near future. (Don't worry, this app will show a message with further instructions when the consolidated app is released. Your rights to the full-featured versions will be preserved as well.)

Other minor changes:

* ON key gives access to all Settings
* 0 powered by 0 now returns Error 0 instead of result 1
Our verdict: Good
  • + Touch 11i is a highly rated app (4-star).
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