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

Before ordering, please 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
- Camera as a barcode scanner
- 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 3.5

- Solved problem with wireless keyboard and iPad in portrait mode
- Wireless keyboard arrow keys stopped working

Ratings and Reviews

2.3 out of 5
3 Ratings

3 Ratings

DBertinot ,

Systems Programmer

This app is not as good as it once was. An orange rectangle jumps around the screen as you touch it. You can zoom in, but not pan around. Very irritating.

zarchasmpgmr ,

Still the best out there after 8 years

I haven’t seen any of the bugs talked about in the poor reviews. It works well for the limiting situation of the iPad. It works well with a BT keyboard, and remember that the iOS interface for BT keyboards is problematic.

If you need basic 3270 support, especially if you’re doing a lot of ISPF editing, this is your app.

Way Out Willie ,

About That Bluetooth Keyboard Issue ...

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!

App Privacy

The developer, MochaSoft, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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