| Title | Company | License | Price | Avg Rating | Downloads |
| iTestBot | AKS-Labs | Shareware | $60 | NR | 1 |
| Automate interface testing tasks with interface robot |
| USB Monitor | HHD Software | Shareware | $64.99 | NR | 135 |
| Software USB port sniffer, monitor tool with protocol analyzer and data logger |
| AllRecall Consul | AllRecall | Shareware | $64.99 | NR | 22 |
| tool for automated testing of applications with character-based interface |
| Docklight RS232 Terminal - RS232 Monitor | Flachmann und Heggelbacher | Shareware | $67 | NR | 124 |
| test, analysis and simulation for serial communication protocols (rs232, ...) |
| TextMeister | Technology Lighthouse | Shareware | $69.99 | NR | 74 |
| A generic text log viewer with powerful monitoring and event notification |
| Virtual Null Modem | AGG Software | Shareware | $74 | NR | 63 |
| Emulate one or more couples of RS-232 ports connected via null-modem cable. |
| Serial Monitor | HHD Software | Shareware | $74.99 | NR | 73 |
| Software serial port monitor Rs232 com sniffer with protocol logger and analyzer |
| Eltima Serial Port Monitor | ELTIMA Software GmbH | Shareware | $79.95 | NR | 124 |
| serial port monitor for professional rs232/422/485 com ports monitoring. |
| Advanced Virtual COM Port | KernelPro Software | Shareware | $79.98 | NR | 172 |
| Create virtual COM ports connected with virtual null-modem cable, share COM port |
| Running Steps | Stepping Software L.L.C. | Commercial | $79.99 | NR | 6 |
| Batch Debug your batch files using Running Steps. Move a step ahead. |
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