| IObit Unlocker | Smart Defrag | Reliable OST to PST Conversion Software | O&O Defrag Professional Edition | |
| 1.1 | 11.1.0.466 | 4.5 | 29.1 Build 11205 | |
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| Freeware | Freeware | Shareware | Trialware | Licence |
| FREE | FREE | $49.00 | FREE | Price |
| 2.34 MB | 15.20 MB | 21.80 MB | 57.90 MB | File size |
| Mar 4, 2014 | Oct 21, 2025 | May 16, 2017 | Dec 12, 2024 | Update |
| 50 | 96 | 96 | 76 | Downloads |
| Windows XP, Windows Vista, Windows Vista x64, Windows 7 x32, Windows 7 x64, Windows Vista, Windows Vista x64, Windows Vista, Windows Vista x64, Windows | Win Vista, Win XP, Win10, Win11, Windows 7, Win8 | Win2000, Win8, Win8.1, Windows 7 x32, Windows 7 x64, Win8 x32, Win8 x64, Win10 x32, Win10 x64, WinOther, WinServer, Windows Vista, Windows Vista x64, Windows XP, Other | Windows 11, Windows 10 64 bit | OS |
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