OggSync review
A focused Windows utility for keeping Outlook and Google calendars aligned.
Reviewed by iTechGuides Editors · Editorial team · Updated Nov 2026
OggSync is a Windows desktop application for individuals, professionals, and small teams managing calendars across Microsoft Outlook and Google. Its core job is two-way synchronization between Outlook and Google Calendar, with support for recurring events, multiple calendars, configurable sync direction, and Google Workspace accounts. It is a focused synchronization utility rather than a broad calendar app, making it a practical fit for Outlook users who need their Google calendars to stay aligned.
The plan structure keeps the basic workflow accessible. The Free plan includes two-way calendar sync, support for one calendar, manual synchronization, and recurring events. Pro costs $29 per device per year and adds multiple calendars, automatic scheduled sync, Google Contacts and Google Tasks synchronization, and priority support. For someone managing one calendar and comfortable starting sync manually, Free covers the essential exchange. The annual per-device price makes Pro more relevant when scheduled updates, additional calendars, or Outlook access to Google contacts and tasks justify the cost.
OggSync’s depth is in synchronization control. It supports recurring-event exceptions, configurable sync direction, and conflict-resolution rules where the most recent change, Google, or Outlook can win. Local synchronization through Google’s official Calendar API also suits users who prefer the application to communicate directly with Google rather than route calendar data through intermediary servers. The trade-off is a narrow platform focus: OggSync runs on Windows, supports Microsoft Outlook 2010 or later, and has no mobile apps. Choose it for detailed Outlook-Google coordination on Windows; choose an alternative if mobile access or broader platform coverage is central.
Questions about OggSync
Does OggSync have a free plan? Yes, there is a free plan; paid plans start at $29/device/yr (Pro).
What does OggSync run on? Windows. It runs as a desktop app.
What does OggSync integrate with? 5 integrations: Microsoft Outlook, Google Calendar, Google Contacts, Google Tasks and Google Workspace.
Does OggSync offer a money-back guarantee? Yes: 30 days.
Who is OggSync built for? Solo users and small businesses (our editorial estimate).
OggSync pros and cons
- Where it wins
- Two-way sync includes recurring-event exceptions and conflict rules.
- Pro adds scheduled sync plus Google Contacts and Tasks synchronization.
- Local syncing communicates directly with Google's official Calendar API.
- Where it doesn't
- Runs on Windows rather than across multiple desktop platforms.
- The Free plan supports one calendar and manual synchronization only.
- Pro costs $29 per device per year on annual billing.
OggSync fact sheet, pricing and score →
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