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

Before ordering, try the free Lite version.

- Supports all standard 3270 emulation features
- Alternate screen size (24x80 or 32x80)
- SSL/TLS (Secure Socket Layer).
- Zoom and scroll as the Safari browser
- 3270 keys as PF1-PF24, PA1-PA3 and Clear
- Printer
- Barcode scanner (OPTICON 2002 or camera)
- Support for 10 different EBCDIC code pages
- Colors can be customised
- Clipboard
- Hotspots (Fxx= , PFxx= and URL text in the 3270 screen can be used as buttons)

What's New

Version 2.9

- IP address field in menu - configure could be hidden
- Query reply now includes the CGCSGID (codepage) value
- General bug fixing

Ratings and Reviews

About That Bluetooth Keyboard Issue ...

Way Out Willie

Disclaimer: I am an iPhone/iPad developer, but I am not affiliated in any way with MochaSoft. In fact, I might someday release my own competing TN3270 emulator. This post is neither a "shill" nor a "troll".

But I feel compelled to defend MochaSoft on the Bluetooth keyboard "issue" that was raised in another review. The fact is, this limitation is Apple's responsibility. The iOS keyboard interface does not provide any way for an app to capture the "enter/return" key — so there is NO WAY for TN3270 to treat it as the 3270 "enter" key!

As presently designed, the iOS keyboard interface passes only two things to the app: data keys and the backspace (delete) key. Nothing else — no "function" keys other than backspace are passed to the app. The app can configure the "enter/return" key to either (a) move the cursor to the next text input field, if there is one (similar to the 3270 "tab" function) or (b) dismiss the keyboard. But the app is not notified of either of these actions!

This needs to integrate better with a bluetooth keyboard...


I first bought this for my iPhone and it worked pretty well. Not wonderfully but considering it is a mainframe in your hand with a LOT of keys piled in there, it is a really, really good effort - and as I said it is quite useable.

But I recently also bought an iPad and a bluetooth keyboard so that I wouldn't have to bounce around from virtual keyboard arrangement to virtual keyboard arrangement within TN3270 -- or so I thought.

Guess what? The ENTER key is NOT honored on the bluetooth keyboard, so you can type some characters really quickly & accurately on the bluetooth keyboard but then you have to move your hand to the top of the screen to "press" the ENTER key there. Dumb!

That HAS to get fixed - SOON!!! (Please? When it gets fixed my rating will definitely improve. Til then its a 3.)

Great app from a long time provider of emulation Clients


This application successfully provides TN3270 emulation on a touch screen interface. TN3270 is a keyboard based application but with the a combination of the ipod keyboard and 'specialty' keyboards they get the job done. Now I can get my mainframe work done from any WiFi hotspot world wide. MochaSoft is a leader in this market and they have done an excellant job here.


Jan Frydendal
2.2 MB
Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© 2011, MochaSoft Aps


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