| Type ▼ | Name ▼ | Year ▼ | Publisher |
|---|---|---|---|
| Acorn Atom ROM |  Psion Debug | 198? | Psion |
| Acorn Atom ROM | Psion Edit | 198? | Psion |
| Psion Organiser II pack. | Psion Printer Ver.1 | 198? | Psion |
| Psion Organiser II pack. | Psion Printer Ver.2 | 198? | Psion |
| Psion Organiser I pack. | Restaurant Guide | 198? | Psion |
| Psion Organiser II pack. | RS232 Link Ver.1 | 198? | Psion |
| Psion Organiser I pack. | Science Pack | 198? | Psion |
| Psion Organiser I pack. | Software Pack | 198? | Psion |
| Psion Organiser II pack. | Thesaurus and Spelling Checker | 198? | Psion |
| Psion Organiser I pack. | Utility Pack | 198? | Psion |
| Acorn BBC/Electron cass. | Vu-Calc | 198? | Psion |
| Acorn BBC/Electron cass. | Vu-File | 198? | Psion |
| PDA | HC 100 | 1991 | Psion |
| PDA | HC 110 | 1991 | Psion |
| PDA | HC 120 | 1991 | Psion |
| Psion Series 3 Solid State Disk | Money | 1991 | Psion |
| PDA | Series 3 | 1991 | Psion |
| Psion Series 3 Solid State Disk | Spell Checker & Thesaurus | 1992 | Psion |
| Psion Series 3 Solid State Disk | Spreadsheet | 1992 | Psion |
| PDA | Series 3a | 1993 | Psion |
| Psion Series 3 Solid State Disk | Hugh Johnson's Wine Guide | 1994 | Psion |
| PDA | Series 3s | 1994 | Psion |
| Psion Series 3 Solid State Disk | Messenger 3a | 1995 | Psion |
| PDA | Series 3a (2M) | 1995 | Psion |
| Other | Workabout | 1995 | Psion |
| PDA | Series 3c | 1996 | Psion |
| PDA | Siena | 1996 | Psion |
| Psion Series 3 Solid State Disk | En Route: Belgium, Netherlands, Luxembourg | 1997 | Psion |
| Psion Series 3 Solid State Disk | Messenger 3c | 1997 | Psion |
| PDA | Series 3mx | 1998 | Psion |
| Other | Workabout mx | 1998 | Psion |
| PDA | Series 5mx | 1999 | Psion |