| Ace Secret Disk | Compress PST Size | Emissary | Compress PST Pro | |
| 8.15.0.0 | 2.2 | 5.5 | 1.0 | |
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Users´ rating |
| Trialware | Shareware | Shareware | Shareware | Licence |
| FREE | $49.00 | $44.95 | $49.00 | Price |
| 13.50 MB | 2.37 MB | 0.96 MB | 2.10 MB | File size |
| May 1, 2025 | Nov 11, 2011 | Sep 19, 2005 | May 9, 2016 | Update |
| 97 | 22 | 20 | 23 | Downloads |
| Windows 11, Windows 10 32/64 bit, Windows 8 32/64 bit, Windows 7 32/64 bit | Win2000, Windows 7 x32, Windows 7 x64, WinOther, WinServer, Windows Vista, Windows Vista x64, Windows XP | Windows XP, Windows 2000 | Win2000, Windows 7 x32, Windows 7 x 64, Win Server, Win Vista, Win Vista x64, Win XP and Win8 | OS |
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