Life & fun · alternatives · 2026

24 alternatives to Kalender Sync

Sync your calendars & connect them to ChatGPT, Claude & Co.

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

1
Notion Calendar Sync▲283
2-way sync between Notion and your Google Calendar
2021 · 2sync.com · its alternatives →
2
omiGPT▲147
Connect 100+ tools to ChatGPT and make it 5x more personal
2025 · personas.omi.me · its alternatives →
3
2024 Digital Planner with Integration▲79
Most advanced PDF ever - create/sync events, ChatGPT & more
2023 · discovernotes.gumroad.com · its alternatives →
4
Meetly▲110
Write & send meeting notes from your calendar and meet calls
2023 · its alternatives →
5
Kalënder 2022▲150
Minimal and printable 2022 calendar.
2022 · its alternatives →
6
Google Calendar Sync by NotionExtensions▲94
Two-way sync between Notion and your Google Calendars
2021 · nodario.com · its alternatives →
7
СatchUp▲8
Time syncing smart calendar in Telegram
2025 · catchup.tg · its alternatives →
8
Kalënder 2023▲153
Free minimal and printable 2023 calendar
2022 · unwrapped.gumroad.com · its alternatives →
9
ChatGPT for Excel▲175
Build and update spreadsheets with ChatGPT in real time
Mar 2026 · chatgpt.com · its alternatives →
10
Arsaze▲101
Let Claude, ChatGPT or Gemini edit your real timeline
25d ago · arsaze.com · its alternatives →
11
SyncThemCalendars▲83
Setup a synchronization between calendars
2019 · syncthemcalendars.com · its alternatives →
12
ChatGPT Saved Chats▲132
Save & organize your most important conversations in ChatGPT
2024 · chromewebstore.google.com · its alternatives →
13
Chronock▲110
Scheduling and calendar sync, all in one
Aug 2026 · chronock.ai · its alternatives →
14
Atomic + ChatGPT▲93
Streamline your workflow with the power of Atomic + ChatGPT
2023 · chatgpt.atomiclife.app · its alternatives →
15
OneCal▲125
Synchronise Outlook and Google Calendars
2023 · onecal.io · its alternatives →
16
23/24 Digital Planner with Integration▲78
Add calendar events, ChatGPT and more directly from the PDF
2023 · discovernotes.framer.website · its alternatives →
17
GPTBLOX - ChatGPT/Bard/Claude Save Data▲89
Elevate your AI chats & web management in one click
2023 · chromewebstore.google.com · its alternatives →
18
Calnio▲66
Two-way sync between Notion and Apple Calendar
24d ago · calnio.myroslavrepin.com · its alternatives →
19
HeySync▲62
Async tasks sync'd to your calendar
2023 · heysync.co · its alternatives →
20
Kalendar 1.0 Is Out▲29
You might have noticed that there have been a lot of KDE releases this week, like Plasma 5.24 and Plasma Mobile Gear. Keen to hop onto this train, those of us in the Kalendar team are happy to reveal Kalendar version 1.0. We are even happier to announce that this will be the final version of Kalenda
2022 · claudiocambra.com · its alternatives →
21
SyncYourCalendar▲1
Calendar. Synchronization. Simpified.
May 2026 · syncyourcalendar.com · its alternatives →
22
TaskCalSync▲3
2-way sync between Todoist and Google Calendar
Jun 2026 · taskcalsync.com · its alternatives →
23
Claude Tuner▲14
Free Chrome extension that tracks your Claude, ChatGPT (Codex), and Gemini usage in real time. Plan simulation, cost savings analysis, rate limit prediction, and team dashboard.
Jul 2026 · claudetuner.com · its alternatives →
24
allmymeetings
The MCP-native calendar sync for Claude, Cursor & co.
Apr 2026 · allmymeetings.com · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →