| REFOG Free Keylogger | Best Free Keylogger | Ardamax Free Keylogger | Best Free Keylogger Pro | |
| 8.1.7.2110 | 7.2.0 | 4.7 | 7.2.0 | |
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| Freeware | Freeware | Freeware | Shareware | Licence |
| FREE | FREE | FREE | $39.00 | Price |
| 8.33 MB | 1.62 MB | 1.58 MB | 1.62 MB | File size |
| Oct 7, 2014 | Dec 8, 2020 | Jul 12, 2017 | Dec 8, 2020 | Update |
| 16 | 19 | 12 | 12 | Downloads |
| Windows XP, Windows 7 x32, Windows 7 x64, Windows 8, Win2000, WinServer, Windows Vista, Windows Vista x64 | Win2000, Windows XP, Windows 7 x32, Windows 7 x64, Windows 8, Windows 10, WinServer, WinOther, Windows Vista, Windows Vista x64 | Win2000, Windows XP, Windows 7 x32, Windows 7 x64, Windows 8, Windows 10, WinServer, WinOther, Windows Vista, Windows Vista x64 | Win2000, Windows XP, Windows 7 x32, Windows 7 x64, Windows 8, Windows 10, WinServer, WinOther, Windows Vista, Windows Vista x64 | OS |
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