Free
$0
per month
For keeping two calendar accounts from double-booking each other.
- Updates every 30 minutes
- 2 linked accounts
- 3 connections
- 25 agent or API calls a day
Keeper.sh pricing: Free, or Pro at $5 a month
Keeper.sh is a calendar sync service that copies events between Google Calendar, Outlook, iCloud, Fastmail and any CalDAV server, so every calendar shows you as busy at the same times. It is free for 2 calendar accounts and 3 connections, and Pro is $5 a month for unlimited calendars. Paid yearly, Pro is $45 (25% off $60).
See what the Free plan includes and which setups fit in it.
Pro
$5
per month
For unlimited calendar accounts, with Google and Outlook changes within seconds.
- Updates from Google and Outlook within seconds
- Updates from iCloud, Fastmail and CalDAV every minute
- Unlimited linked accounts
- Unlimited connections
- Choose which events sync
- Unlimited agent and API calls
Updates from Google and Outlook
Every 30 minutes
Within seconds
Updates from iCloud, Fastmail and CalDAV
Every 30 minutes
Every minute
Linked Accounts
2
Connections
3
Shareable Calendar Link
Choose What the Link Shows
Choose Which Events Sync
AI Agent and API Access
25 calls/day
Email & Passkey Sign-In
Priority Support
Frequently asked questions
What does the Free plan include?
The Free plan costs $0 and covers 2 calendar accounts, 3 connections and 1 shareable calendar link. Signing up needs no card.
How much does Keeper.sh Pro cost?
Pro is $5 a month or $45 a year. It is one plan with unlimited calendar accounts, connections and shareable links.
Is Pro priced per calendar or per user?
Pro is priced per person: $5 a month covers every calendar that person connects.
Does two-way sync fit on the Free plan?
Yes. Each connection runs one way, so two-way sync is two connections. A two-way pair uses 2 accounts and 2 connections, which fits the Free plan with one connection spare.
What counts as a calendar account?
An account is one connected calendar provider, such as a Google or Outlook login or a CalDAV server, however many calendars it holds.
What counts as a connection?
A connection copies events from one calendar into one other calendar.
How quickly do changes show up?
On Pro, Google and Outlook changes land within seconds, and iCloud, Fastmail and CalDAV changes land every minute. On Free, changes land every 30 minutes. Adding or removing a connection starts a sync straight away on both plans.
What does Pro add besides more calendars and faster updates?
Pro lets you choose which events sync, for example by leaving out all-day events, focus time or out of office. It can show the title, description and location per calendar, change the copy range, and customise shareable links, and it comes with priority support.
Are the API and the MCP server included in the Free plan?
Yes. Free includes 25 calls a day, shared between the REST API and the MCP server. Pro has no daily cap.
Do I need a Google or Microsoft account to sign up?
No. On both plans you can create an account with an email address and password, and add a passkey afterwards. Google and Microsoft sign-in are optional, and connecting a calendar is separate from how you sign in.
Can I cancel my subscription?
Billing is handled by Polar. You can manage or cancel your subscription from the customer portal linked in your account settings.