Amion vs Cal.com
Amion
amion.com
Cal.com
cal.comSide by side
| Figure | Amion | Cal.com |
|---|---|---|
| Price from | $33.25/mo | $1/mo |
| Free plan | — | Yes |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | — | Yes |
| iOS | Yes | Yes |
| Android | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 5 | 6 |
| Spec score · Availability Management | 9.3 (#1) | 9.3 (#2) |
| Calendar sync | Personal schedules can subscribe to iPhone, Google Calendar, Outlook and other online-calendar systems; feeds include 300 future days and the prior two weeks. | two-way |
| Headquarters | Boston area, Massachusetts, United States | San Francisco, California, United States |
| Integrations | Listed integrations include Epic, American Messaging, Spok, Verizon, LightningBolt, QGenda, SAML identity providers and Imprivata products. | The pricing page lists Google Meet, Microsoft Teams, Zoom, Cal Video, Google Calendar, Outlook, Apple Calendar, Zoho Calendar, Salesforce, HubSpot, Stripe, PayPal, Zapier, Make and more than 100 direct integrations. |
| Notable news | Doximity reported an Amion acquisition consideration of $74.6 million, including $53.5 million cash and $21.1 million contingent earn-out value. | Cal.com announced on April 14, 2026 that it was going closed source and would continue Cal.diy as an open option for hobbyists. |
| Notifications | Amion can alert staff and administrators about schedule changes and deliver on-call notifications. | The service sends booking confirmations, reminders and follow-ups through email and SMS. |
| Rating on Apple App Store | 4.4 out of 5 from 5.6K ratings | 4.8 out of 5 from 201 ratings |
| What it does | Amion is a web and mobile on-call scheduling and messaging application for hospitals and physicians. | Cal.com provides customizable scheduling for individuals, businesses and developers embedding booking into products. |
Plans
Amion
- Single group or residency license$399 a year
- Provider scheduling$449 a year
- EnterprisePriced on request
- ProPriced on request
- ResidencyPriced on request
Cal.com
- FreeFree
- Teams$12 a month
- Organizations$28 a month
- Teams$12 a year
- Organizations$28 a year
- EnterprisePriced on request
In their own words
Amion
Amion is scheduling software for medical groups, hospitals, and health systems to build and share on-call and shift schedules. Its tools use rules, patterns, templates, and an autoscheduler. Staff can submit work or time-off requests and swap shifts when those options are enabled for their schedule. Departments can bring their schedules together in a central hospital-wide on-call list. The mobile app supports two-way secure messaging; messages sent from the Who’s On List are one-way broadcasts. Amion lists integrations with Epic, American Messaging, Spok, Verizon, LightningBolt, QGenda, SAML-compatible SSO providers, and Imprivata products. LightningBolt and QGenda integrations display Amion schedules in those applications only in the outgoing direction. Browser access supports schedule viewing, requests, editing, swaps, and personal schedule access across platforms. The OnCall desktop scheduler runs on Windows, while Amion says Macs can run it through Winebottler or Windows emulators. Pricing is on request; listed plans are Pro, Enterprise, and Residency.