Ari vs Syder
Ari
justcc.toSyder
syder.inSide by side
| Figure | Ari | Syder |
|---|---|---|
| Price from | $24/mo | $22/mo |
| Free plan | Yes | — |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| macOS | Yes | — |
| iOS | Yes | — |
| Plans published | 3 | 3 |
| Spec score · AI Scheduling Assistants | 8.4 (#5) | 7.5 (#18) |
| Integrations | The site lists Gmail, Outlook, Google Calendar, Microsoft 365, Zoom, Google Meet, and Microsoft Teams as supported services. | The maker lists WhatsApp, Slack, Google Calendar, and Notion integrations; Notion is marked Coming Soon in the pricing plan details. |
| Scheduling | Ari is an AI scheduling assistant that you CC on an email thread to find mutually available times and arrange meetings. | Users can message Syder in WhatsApp to book, cancel, or reschedule meetings using natural language. |
| Support | The maker lists [email protected] as its contact address. | The support page invites users to contact the support team by email for help with questions or issues. |
Plans
In their own words
Ari
Ari is an AI scheduling assistant that users CC on an email thread to find times that work for participants and arrange meetings. With permission, it reads Google Calendar and Microsoft 365 calendars and can create, update, or cancel events. It processes email content in threads where it is copied to identify scheduling requests. Listed services include Gmail, Outlook, Google Calendar, Microsoft 365, Zoom, Google Meet, and Microsoft Teams. Ari's Mac and iPhone apps can record and transcribe meetings, summarize them, and help book follow-ups; recording starts only when the user presses record. The macOS app keeps recordings and transcripts on the device unless cloud features are used. The Free plan allows 10 meetings total and one Google and one Microsoft calendar. Basic costs $24/mo, and Premium costs $39/mo. The maker says email content is sent to Anthropic’s Claude API for scheduling-intent processing and is not retained beyond what is needed to complete the request. Ari may misunderstand intent or suggest incorrect times, so users must review and confirm meetings.