Version 2.9

The AS/400 - also called the "IBM iSeries," is a midrange server from IBM, designed for the business world. TN5250 is a terminal emulator which provides access to an AS/400.

  • Supports all standard 5250 emulation features
  • Alternate screen size (24x80 or 27x132)
  • SSL/TLS (Secure Socket Layer)
  • Barcode scanner (Camera, Linea Pro 4/5, iScan,iPDT380, aScan or Opticon 200X)
  • iPad support
  • Auto login
  • VGA screen
Available on the iPhone and iPad

Requirements: Compatible with iPhone, iPad and iPod touch. Requires iPhone OS 5.0 or later. WiFi, Edge, or 3G network connection required.

Lite or paid version

Compared to the Lite version the full version has:
- Fxx key board.
- Page up/down keys.

Paid version costs 29.99 USD.

App store lite version
Where can I get support?

Contact our support function with email to

Online user guide

Click here for online user documentation.

iScan barcode scanner

Support for iScan/iPDT380/aScan from Mobilogics
Looking for an iScan reseller, try PosGuys

Another hardware scanner we can recommend with tn5250, is the Linea-pro scanner

Frequently Asked Questions (FAQ)

There is a FAQ here

Other products

Please visit our main Web page. We sell software for many different platforms, such as Windows, Mac OS X and Android .

About Us

MochaSoft Aps is a software company founded in 1997.  MochaSoft offers solutions that help you quickly and cost-effectively creating access to AS/400, IBM mainframes or UNIX platforms from many different types of workstations.

This year we celebrate our 17th anniversary. Since 1997, we have grown our business from pure Java products to include native products for a large range of the leading computer platforms.

We are located in Blokhus, a small costal town in the northern part of Denmark.

Our postal address:

    MochaSoft Aps
    Clemmi Falk Vej 3
    9492 Blokhus
Time Zone GMT + 1 
Business hours : Monday - Friday 10 - 16.00
Company VAT number: DK25442113
Dun & Bradstreet # : 30-672-1668


TN5250 2.9

Released December 2014
  • TLS support
  • added support for linea power sharing in menu - settings
  • bug fixing.

TN5250 2.8

Released September 2014
  • ready for iOS 8
  • a macro can have a name
  • added enter and macro keys in the banner
  • general bug fixing.

TN5250 2.7

Released on June 11, 2014
  • Added support for scanner : aScan

TN5250 2.6

Released on March 18, 2014
  • Camera barcode scanner would fail after 5 scans.
  • Using large fonts in iOS would give wrong layout.
  • General bug fixing.

TN5250 2.5

Released 25 September 2013
  • Prev key did not work.
  • Faster keyboard input and screen updates.
  • New icon.
  • Removed icons from the main menu.
  • General bug fixing.

TN5250 2.4

Released 15 September 2013
  • Support for more keys with a wireless keyboard (iOS 7 only).
  • iOS 7 ready.
  • New button design.
  • General bug fixing.

TN5250 2.3

Released 29 June 2013
  • New option: lock configuration and settings with a password.
  • QWERTY keyboard had 2 "t" keys.
  • Lite version includes more keys.
  • General bug fixing.

TN5250 2.2

Released January 2013
  • Support for Mobilogics iScan barcode scanner.
  • Removed spaces in voice input.
  • General bug fixing.

TN5250 2.1

Released on December 13, 2012
  • Clipboard - copy/paste and select all.
  • Voice input.
  • Macro key in portrait screen on an iPad.
  • Simple QWERTY keyboard, if using a normal BT bar code scanner, which will block the standard screen keyboard. Click here
  • Double tap on the screen gives an ENTER command.
  • On a wireless keyboard Apple+c+v+a can be used for clipboard functions.
  • General bug fixing.

TN5250 2.0

Released on September 5, 2012
  • Ready for iOS 6
  • New numeric keyboard
  • Better VGA
  • Auto lock (sleep) as an option

TN5250 1.9

Released on January 4, 2012
  • Some AS/400 systems has problems with the new iOS 5.01 and TLS 1.2. See Technical Note TN2287
  • added Ins key in iPad portrait mode

TN5250 1.8

Released on 12 December 2011
  • 2 x click on zoom icon locks the screen. Useful when scanning a barcode
  • updated for iOS 5 and Linea scanner API
  • solved issue with saving more than one session

TN5250 1.7

Released on 31 August 2011
  • - Support for Linea barcode scanner
  • Auto connect in settings
  • More barcode options
  • Solved configuration saving problem
  • Some configuration screens with ipad in portrait could crash

TN5250 1.6

Released on 14 March 2011
  • new keyboard layout for iPad portrait
  • new configuration dialogs
  • support for OPTICON 2002 scanner
  • camera as a barcode scanner
  • printer
  • url load:
    Start tn5250 from a web browser using
    If there is not an open session to an as/400, tn5250 will start a session using a configuration named abc

TN5250 1.5

Released on 27 August 2010
  • new keyboard layout for iPad
  • limited support for wireless keyboard
  • faster Del key
  • VGA video output

TN5250 1.4

Released on 25 April 2010
  • Support for iPad
  • Better screen handling

TN5250 1.3

Released on 25 April 2010
  • In OS 3.0, the auto-correction option (Settings - General - keyboard) could give a crash

TN5250 1.2

Released on 14 July 2009
  • DNS problem with OS 3.0 has been solved
  • Better screen handling
  • Removed delay in 27x132 mode

TN5250 1.1

Released on 5 August 2008
  • In 27x132 mode , the screen update failed
  • Only US EBCDIC codepage worked
  • Connect dialog could crash
  • Reset configuration, did not work
  • If the EDGE network was passive, a connection would fail
  • Selecting another font, would later pop up the Navigation bar in the 5250 screen
Get In Touch

If you have support questions or ideas to improve the product, please send an email to

Please add following information to the email.
- Full product name and version number
- iOS version and if using ipad/iPhone or iPod