đź’ˇ SaaS Idea: CalMerge - Multi-source calendar & tasks hub
Web/mobile app that bi-directionally syncs multiple Google, Outlook, CalDav calendars + task tools (Todoist, Notion). Offers smart layer & merge views, conflict alerts and AI scheduling suggestions. Responds to users seeking single place to combine calendars and tasks.
Platform: web, mobile
Why it's a good idea?
Problem signals & forum demand
- Original Reddit thread supplied shows 600+ up-votes and dozens of comments asking for “ONE place that merges all my Google/Outlook calendars” – identical pain point.
- Additional Reddit searches returned 10+ threads in r/Outlook, r/ProductivityApps, r/gsuite, r/consulting (e.g. “Best way to sync multiple calendars (Google & Outlook)”, “Cloud-based 2-way sync of Google Workspace & O365?”, “Services with 2-way syncing for calendars”) – all recent (2023-2025) and still unanswered or recommending paid tools.
Keyword data (tool output)
- “outlook google calendar sync” – 720 searches/mo, difficulty 16 (low)
- “merge calendars outlook” – 720 searches/mo, difficulty 0 (very easy)
- “two-way sync google calendar with outlook” – 390 searches/mo, difficulty 11
- “sync multiple calendars in outlook” – 210 searches/mo, difficulty 0
Combined “calendar sync” family easily >1.5k searches/mo, with several individual terms >500 and difficulty <30 → passes validation rule.
Existing competitors (validated willingness-to-pay)
- OneCal – SaaS $4–25 / user / mo (real-time Google/Outlook/iCloud). Active reviews on G2, Capterra.
- CalendarBridge – $5–12 / user / mo, sim...
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