Caltsu and Reclaim.ai compared
Reclaim.ai plans your week: focus time, habits, tasks and meeting buffers, with calendar sync as one feature among many. Caltsu does one of those things. It copies the time of each event to your other calendars as a Busy block.
- Main job
- CaltsuCalendar syncReclaim.aiAI scheduling of tasks, habits and focus time
- What the other calendar receives
- CaltsuA block with the start and end time, the title Busy or your own text, and a note naming the source calendar. Never the event title, attendees, location, notes or meeting link.Reclaim.aiCopied events. Which details are included depends on the sync settings in Reclaim.
- Google Calendar
- CaltsuYesReclaim.aiYes
- Microsoft 365 and Outlook
- CaltsuYesReclaim.aiYes
- Calendar syncs included
- CaltsuUnlimitedReclaim.ai1 on the free plan, unlimited on paid plans
- Price
- Caltsu€5 per month or €48 per year. One plan, 14-day trial without a card.Reclaim.aiFree plan. Paid plans from $10 per seat per month.
- Database location
- CaltsuPostgreSQL in Frankfurt, GermanyReclaim.aiSee Reclaim's privacy policy
| Topic | Caltsu | Reclaim.ai |
|---|---|---|
| Main job | Calendar sync | AI scheduling of tasks, habits and focus time |
| What the other calendar receives | A block with the start and end time, the title Busy or your own text, and a note naming the source calendar. Never the event title, attendees, location, notes or meeting link. | Copied events. Which details are included depends on the sync settings in Reclaim. |
| Google Calendar | Yes | Yes |
| Microsoft 365 and Outlook | Yes | Yes |
| Calendar syncs included | Unlimited | 1 on the free plan, unlimited on paid plans |
| Price | €5 per month or €48 per year. One plan, 14-day trial without a card. | Free plan. Paid plans from $10 per seat per month. |
| Database location | PostgreSQL in Frankfurt, Germany | See Reclaim's privacy policy |
Reclaim.ai details come from its public website, checked September 2026. Plans change, so confirm on their site before you decide.
When Reclaim.ai fits better
- You want software to decide when tasks, habits and focus time go on the calendar.
- One calendar sync on a free plan covers what you need.
When Caltsu fits better
- You only need your calendars to show each other when you are busy.
- You want fewer permissions and fewer features for an IT team to review.
- You connect several accounts across organizations and want them all on one flat price.
Where they overlap and where they differ
The overlap. Both can copy events from one calendar into another as blocks, across Google Calendar and Outlook, so people booking you in either calendar see the time as taken.
What Reclaim adds. It plans your time for you. It places tasks, habits and focus time on the calendar and moves flexible events when plans change.
What Caltsu leaves out on purpose. Caltsu only adds, updates and removes Busy blocks. It never moves or creates meetings. It uses its calendar write access for that one job, which makes the IT review shorter.
Try it on your own calendars.
Other comparisons: OneCal, CalendarBridge, Clockwise, Cal.com