Organized environment for quickly organizing and managing your projects!

OmniPlan for Mac

OmniPlan 4.5.5

  -  85.48 MB  -  Trial
  • Latest Version

    OmniPlan 4.9

  • Operating System

    macOS 11.0 Big Sur or later

  • User Rating

    Click to vote
  • Author / Product

    The Omni Group / External Link

  • Filename

    OmniPlan-4.5.5.dmg

  • MD5 Checksum

    4c6b8b2e30e99f86bab38e746722cf08

Sometimes latest versions of the software can cause issues when installed on older devices or devices running an older version of the operating system.

Software makers usually fix these issues but it can take them some time. What you can do in the meantime is to download and install an older version of OmniPlan 4.5.5.


For those interested in downloading the most recent release of OmniPlan for Mac or reading our review, simply click here.


All old versions distributed on our website are completely virus-free and available for download at no cost.


We would love to hear from you

If you have any questions or ideas that you want to share with us - head over to our Contact page and let us know. We value your feedback!

  • OmniPlan 4.5.5 Screenshots

    The images below have been resized. Click on them to view the screenshots in full size.

    OmniPlan 4.5.5 Screenshot 1
  • OmniPlan 4.5.5 Screenshot 2
  • OmniPlan 4.5.5 Screenshot 3

What's new in this version:

- Cloud Storage Providers — Improved compatibility with resource folders stored in locations such as OneDrive
- Cloud Storage Providers — Initiating import of a Microsoft Project (.mpp) file or XML file synced via a cloud storage provider now triggers automatic download of the file when necessary
- Collaboration — Saved filters can now be applied to “Sync tasks with a Calendar” publishing actions
- Stability — Fixed a crash that could occur when calculating resource cost