Cal.com App: Companion for iOS, Android, Browser and Desktop

What people mean by the Cal.com app

Search for the Cal.com app and you can land on three different things. The first is Cal.com Companion, the family of native apps for phones, browsers and desktop computers that launched in January 2026. The second is the Cal.com App Store, the catalog of integrations you install inside your account to connect calendars, video tools, payments and CRMs. The third is Cal Video, the meeting room built into the product. This guide covers all three, starting with Companion, because that is what most people want when they type the word app.

The short answer on price is simple. Companion is free and included in every Cal.com plan, the free one too, with no extra charge for the apps or the extensions ^[1]. You do need a Cal.com account, because Companion works as an extension of that account rather than as a separate product. Nothing you set up lives in the app itself. Your Links, availability and bookings stay in the web dashboard, and the apps give you faster ways to see and act on them. If you have not built your booking page yet, start with our step-by-step Cal.com setup guide.

Companion on every platform

Cal.com ships Companion in three forms, and it built them from a single shared codebase rather than as separate products. That matters for you in one practical way: the apps look and behave alike, so moving between your phone and your laptop does not mean learning a second tool. Cal.com also says the Companion code is developed in the open, as its own project. That applies to the apps only, not to the main product, which turned closed source in April 2026.

All three versions are free. Cal.com's own launch post claims it is the only free scheduling app with native apps in every store ^[2]. We could not check that claim against every rival, so treat it as the vendor's framing rather than a fact. What we can confirm is the coverage itself. Between the two phone platforms, the four browsers and the three desktop systems, there are nine places to install Companion, by our arithmetic, and no paid tier stands in front of any of them.

The mobile app: bookings in your pocket

On iOS and Android, Companion lets you schedule meetings, check your availability and receive updates as they happen. That covers the jobs people most often need away from a desk: seeing what is booked today, checking whether a slot is still free before promising it to someone, and hearing about a new booking without waiting for an email. The rest of the setup, such as building Links, writing booking questions or editing workflows, still happens in the web dashboard.

The most useful feature arrived in June 2026. Companion now sends push notifications, and for Links that require confirmation you can accept or reject the request straight from the notification, without opening the app at all. If you use the confirmation setting to vet bookings, for example only for people who book with free email addresses, this turns approval into a single tap. Before this, a pending request waited until you got back to a browser. For anyone who runs a confirmation-based calendar, that alone justifies installing the app.

Browser extensions and desktop apps

The browser extension is available for Chrome, Safari, Microsoft Edge and Firefox. Its point is reach. Most scheduling happens while you are already in a browser, writing an email or reading a message, and the extension keeps your Cal.com account one click away instead of in another tab. Cal.com added a Companion widget in February 2026, a month after launch. It has not published a feature-by-feature list for the extension, so check what it offers in your browser before you rely on it for a specific task.

The desktop app runs on macOS, Windows and Linux, and Cal.com pitches it as a way to stay on top of your calendar from your computer. One caveat sits in the company's own FAQ. It says the desktop app does not give exactly the same experience as using Cal.com in a browser, and that it is updated less often. That page is not current on other points, as the next section shows. Still, it is a fair warning to keep the web version open for anything beyond a quick look.

Beyond Companion: Slack, email and the command line

Companion is not the only way to reach your calendar without opening the website. In March 2026 Cal.com launched what it calls Agents, which let you manage your agenda from Slack, Telegram, email or a new Cal.com command-line tool. The idea is simple. You ask in a chat or an email, and Cal.com handles the scheduling for you. Cal.ai has changed shape along the way. It began as an email assistant, was relaunched as a phone agent inside workflows in February 2025, and came back to the App Store in v6.9 (September 2026) as a calendar agent you call by typing a short command as an event title.

These routes suit different people. A sales team that lives in Slack may never open the phone app. A developer may prefer the command line. A busy owner may just want to write one email and be done. None of them replaces the dashboard for setup either. Older App Store text still describes the retired email assistant, so read the current listing before you plan around it.

From waitlist to app stores, and the outdated FAQ

The timeline is short. Cal.com announced Companion with release 6.0 in December 2025, as a waitlist, naming an iOS app, an Android app and extensions for Chrome, Firefox, Safari and Edge. Release 6.1 put version 1.0 live on January 15, 2026, on iOS, Android, Chrome, Firefox and Safari; Edge appears on the Companion page now. The widget followed in February, and push notifications with confirm and decline arrived with release 6.6 in June 2026. Nine months in, the apps are still young, and features keep arriving in the regular monthly releases.

That speed has left one page behind. The Cal.com FAQ still says the company does not have a mobile app and suggests using the browser on your phone instead ^[3]. Ignore it. That line is outdated. The Companion page, the pricing page and the release notes all describe native iOS and Android apps, and the free plan lists the mobile app and the browser extension among its features. When the two disagree, trust the newer pages. If you read elsewhere that Cal.com has no app, that claim most likely comes from the same old FAQ.

The App Store: integrations by category

Inside your account, the App Store is where Cal.com connects to everything else. Its listing shows featured categories with app counts: conferencing 24, automation 21, other 12, analytics 12, calendar 9, CRM 6, payment 5, messaging 4 and video 1 ^[4]. Those counts add up to 94, by our arithmetic. Cal.com's own pages round the catalog differently, from more than 45 apps on an older help page to more than 100 on the pricing page, so the category view is the most reliable picture of what is there today.

What sits in each shelf

The calendar shelf covers Google Calendar, Outlook Calendar, Apple Calendar, Zoho Calendar, Lark Calendar, Microsoft Exchange, CalDav, which is labeled beta, and an ICS feed import. The CRM apps are HubSpot, Salesforce, Zoho CRM, Zoho Bigin, Close and Attio. Payment apps include Stripe, PayPal, HitPay for Asia-Pacific e-wallets, BTCPay Server for Bitcoin, and Cal Pay, which comes switched on by default. Automation runs through Zapier, Make, n8n, Pipedream and viaSocket. Zapier, for instance, can start a workflow when a booking is created, rescheduled or cancelled, or when a meeting ends.

Do not skip the small apps. A Slack app lets you announce out of office and talk to the Cal.com assistant without leaving Slack. A Deel app syncs out of office with Deel time-off policies. Wipe my cal reschedules an entire day in bulk, which helps on a sick day. Several AI voice agents from third parties connect too, including Retell AI, Synthflow and ElevenLabs. A WordPress app embeds booking pages in a WordPress site, and the store even lists an app for requesting a signed HIPAA business associate agreement.

Installing apps the right way

Cal.com suggests an order: a calendar first, then a video tool, then everything else. Follow it, since your calendar is what stops double bookings. Since mid-2025 you can install an app straight onto specific Links rather than across your whole account. The Installed apps page lets you switch calendars on or off, add webhooks and remove apps you no longer use. Video tools such as Zoom and Google Meet must be installed here before they appear as a location option on a Link.

Cal Video: the meeting room you already have

Cal Video is listed in the App Store as a default app, so it needs no install. It is powered by Daily.co, and Cal.com says it is available to every user regardless of plan, with no extra subscription and no 45-minute cut-off. Inside the room you get screen sharing, text chat and meetings with several people. For a solo consultant who would otherwise pay for a separate video tool, that is a real saving. It also needs nothing installed.

The extras depend on your plan. Recording and transcription are available on the Teams plan and above, and recordings can be downloaded from your past bookings. AI transcription supports English by default, a multilingual auto-detect option and about 45 named languages. Per Link, you can stop guests or the organizer from recording, start recording automatically when the organizer joins, ask guests for an email before they enter, and send everyone to a web page of your choice when the meeting ends. Since August 2026 the room also shows a consent dialog for recording and transcription.

Limits worth knowing before you rely on the apps

Companion is young. That shows in the gaps. Cal.com has not published a detailed feature list for the browser extension or the desktop app, and its own FAQ warns that the desktop app trails the browser version. The heavy setup work, building Links, routing forms and workflows, still belongs in the web dashboard. Treat the apps as a fast window onto your calendar and a way to act on bookings, not as a full replacement for the website.

The App Store has its own fine print. The Microsoft 365 and Teams integration needs a work or school Microsoft account, not a personal one. CalDav is still in beta. Cal Video recordings need a paid team plan. And the catalog size you read depends on which Cal.com page you open, so count the apps you actually need rather than the headline. For how all of this weighs against price, support and the rest of the product, see our full Cal.com review.

The bottom line

The Cal.com app is free, and it is now real: Companion runs on iOS, Android, four browsers and three desktop systems, and the old FAQ line saying there is no mobile app is out of date. Install the phone app if you approve bookings on the go, since push notifications with confirm and decline are its best feature. Use the App Store for your calendar and video tool first. Lean on Cal Video if you do not already pay for meetings, and keep the web dashboard for setup.