| Email Scheduler Tracker | UltraMailer | Zen | Freedom | |
| 1.1.3 | 3.4 | 0.9.0 | 2.31.4 | |
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| Shareware | Freeware | Open Source | Trialware | Licence |
| $27.00 | FREE | FREE | FREE | Price |
| 2.82 MB | 13.77 MB | 7.70 MB | 16.50 MB | File size |
| Apr 17, 2013 | Jun 8, 2014 | Mar 26, 2025 | Jun 20, 2025 | Update |
| 42 | 47 | 33 | 31 | Downloads |
| Win2000, Win8 x32, Win8 x64, Windows 7 x32, Windows 7 x64, Windows Vista, Windows Vista x64, Windows XP | Win2000, Windows 7 x32, Windows 7 x64, WinOther, WinServer, Windows Vista, Windows Vista x64, Windows XP, Other | Windows 11, Windows 10 64 bit | Windows 11, Windows 10 32/64 bit, Windows 8 32/64 bit, Windows 7 32/64 bit | OS |
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