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SaaS ideas, mined from what people actually complain about.

Every idea comes from real Reddit posts, was researched against today's competitors, and survived an independent skeptic before it made the list.

Out-of-Sync Calendars

Users struggle to unify, sync, and view multiple calendars from different providers, causing manual work, errors, and scheduling conflicts.

In their words

One-way company calendar to everyone's phone, why is this still a thing in M365?

r/Office365 on Reddit

I ended up writing my own import tool that I just run as a periodic job on my laptop but it’s really frustrating that it isn’t a built in feature.

r/todoist on Reddit

There are 4 calendars I have to check. Normal calendar, shift swap calendar, time off calendar, and work location calendar. There is no centralized calendar to find out when you're working.

r/adhdwomen on Reddit

We had a double booking disaster two years ago using basic calendar imports.

r/ShortTermRentals on Reddit

I spend a bunch of time coordinating (sharing availability between individual calendars).

r/Startup_Ideas on Reddit

None of my calendar apps handle all three without either exposing personal stuff to my work calendar or making me manually juggle three apps.

r/ProductivityApps on Reddit

Every day I have a lot of meetings and calls. Almost every meeting has an agenda or action points. So it feels very strange that there is no way to leave notes separately for each meeting.

r/Onyx_Boox on Reddit

What's the clean way to give one person a combined view of 30 calendars without breaking the per-store calendars everyone else relies on?

r/Office365 on Reddit

Staff are understandably irritated about the redundancy/duplicate work of inputting appts and whatnot on their Outlook calendars and then having to plug everything in the separate Word doc too.

r/ExecutiveAssistants on Reddit

I can't find any proper alternative that has calendar, room booking and resource booking

r/sysadmin on Reddit

healthcare clients with on-call rotation calendars that never reliably show up on mobile

r/SmallMSP on Reddit

ClickUp is practically perfect for managing projects and data, but the mobile calendar makes daily scheduling on the go impossible.

r/clickup on Reddit

For clients with weddings that require multiple dates of coverage like south Asian weddings, I cannot assign multiple dates in the contract that populates into the calendar.. so that calendar syncing is useless to me.

App Store · HoneyBook - Small Business CRM

the "no admin approval, no OAuth app to grant tenant-wide access" part is exactly why I'd never gotten our IT to greenlight

Product Hunt

IT admins, executive assistants, freelancers

Where they talk

  • r/Office365
  • r/ProductivityApps
  • r/sysadmin
  • r/ExecutiveAssistants
  • r/Outlook
  • r/ShortTermRentals
  • r/googleworkspace
  • r/clickup

Tools they use today

  • Google Calendar
  • Outlook
  • Microsoft Teams
  • Microsoft 365
  • Power Automate
  • Apple Calendar
  • Excel
  • Google Workspace

Why those fall short

  • no centralized calendar; each calendar owned by a different person
  • no creator or edit timestamp unless a meeting invitation is sent
  • no built-in import or iCloud calendar integration
  • ICS lags and duplicates; shared mailbox unreliable on phones; copy flows go stale
  • Outlook lacks recurring out-of-office scheduling