Version 2.3

TN3270 emulate an IBM 3278 terminal for easy access to an IBM Mainframe.

  • Supports all standard 3270 emulation features
  • Alternate screen size (24x80 or 32x80)
  • SSL/TLS (Secure Socket Layer).
  • Barcode scanner (Camera or an OPTICON 2002 scanner)
  • Support for 10 different EBCDIC code pages
  • iPad support
  • VGA screen
Available on the iPhone and iPad

Requirements: Compatible with iPhone, iPad and iPod touch. Requires iPhone OS 5 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.

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.

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


TN3270 2.3

Released December 2014
  • added TLS

TN3270 2.2

Released September 2014
  • ready for iOS 8
  • a macro can have a name
  • general bug fixing.

TN3270 2.1

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

TN3270 2.0

Released on September 25, 2013
  • Faster keyboard input and screen updates.
  • New icon.
  • Removed icons from the main menu.
  • General bug fixing.

TN3270 1.9

Released on September 18, 2013
  • Support for more keys with a wireless keyboard (iOS 7 only).
  • iOS 7 ready.
  • New button design.
  • Clear function is added to the lite version.
  • General bug fixing.

TN3270 1.8

Released on July 04, 2013
  • New option: lock configuration and settings with a password.
  • Lite version includes more keys.
  • General bug fixing.

TN3270 1.7.1

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

TN3270 1.7

Released on 4 September 2012
  • Ready for iOS 6
  • New numeric keyboard
  • Better VGA
  • Auto lock (sleep) as an option

TN3270 1.6

Released on March 13, 2012
  • wrong help text.
  • color was not saved.
  • new icon.
  • more barcode types.

TN3270 1.5

Released August 2011
  • Fixed crash bug with many fields on the screen.
  • Jump to next field could fail.
  • Better code for saving the configuration.
  • Configuration screens in portrait mode, could crash.

TN3270 1.4

Release June 2011
  • Bug fixing

TN3270 1.3

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

TN3270 1.2

Released on 14 September 2009
  • In OS 3.0, the auto-correction option (Settings - General - keyboard) could give a crash.

TN3270 1.1

Released on 15 July 2009
  • Solved DNS problem seen with OS 3.0.
  • Better screen handling.

TN3270 1.0

Released on 14 September 2008
  • First release
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