I recently used Glink 5250 for accessing my IBM mainframe with my iPhone and I was impressed with its features and usability.

Features

Glink 5250 offers a wide range of features including customizable keyboard layouts, support for multiple sessions, and easy navigation. It also provides secure connections with SSL and SSH support, as well as support for bar code readers.

Usability

The app is extremely easy to navigate and use. The interface is intuitive and well-designed, making it simple to connect to and navigate the mainframe. The customizable keyboard layouts also make it easier to work with the app.

Design

The design of the app is clean and professional. The interface is user-friendly and provides all the necessary options without feeling cluttered. The color scheme and overall layout make it easy to read and navigate.

Pros

1. Customizable keyboard layouts
2. Multiple session support
3. Secure connection options
4. Easy navigation and intuitive interface

Cons

1. The app is on the pricier side compared to other options in the market
2. It may take some time for new users to fully understand all the features and customization options

Overall, Glink 5250 is a highly functional and user-friendly app for accessing IBM mainframes on the go. While it may have a higher price tag and a slight learning curve, its features and usability make it a valuable tool for those who regularly work with mainframes.