| Application name | Version | Loads | Dies | Works | Saves | Faster | Note |
| TechWriterPro+ | 6.01+ | Y | N | Y | Y | Y | See below |
| TechWriterPro+ | 6.05+ | Y | N | Y | Y | Y | See below |
| EasiWriterPro+ | 6.01+ | Y | N | Y | Y | Y | See below |
| TechWriterPro | 5.08 | Y | N | Y | Y | Y |
As Icon were to be supplying the ill fated Pheobe with EasiWriter (and are to be supplying RiscStations with EasiWriter as part of the bundle), it is not suprising that both TWP and EW work under OS4!