Appwrite vs Calendly
Open-source BaaS for building full-stack apps
vs. The scheduling category leader — dominant polished SaaS booking tool
Pricing tiers
Appwrite
Self-Hosted
Run Appwrite on your own infrastructure. MIT licensed — no usage limits.
$0 base (usage-based)
Cloud Free
Managed cloud. Hard caps: 1 team member, 1 database per project.
Free
Cloud Pro
From $15/member/month. 2 TB bandwidth, 150 GB storage, 200k MAU, 3.5M executions, unlimited databases + team members.
$15/mo
Cloud Scale
$599/month flat for the org. Higher included usage + advanced security. Deprecated in some regions — check.
$599/mo
Enterprise
Custom pricing. SOC 2, HIPAA (on request), dedicated infra, SLAs.
Custom
Calendly
Free
$0. 1 user. 1 event type. Unlimited 1-on-1 meetings. Basic calendar integrations.
Free
Standard
$12/user/mo. Unlimited event types. Group events. Remove branding. 7 integrations.
$12/mo
Teams
$20/user/mo. Round-robin, collective, Salesforce/HubSpot, Zapier, routing, metrics.
$20/mo
Enterprise
Starts ~$15,000/year (5-10 users). SSO, SCIM, advanced routing, dedicated success manager, SLA.
$15000/mo
Free-tier quotas head-to-head
Comparing free on Appwrite vs free on Calendly.
| Metric | Appwrite | Calendly |
|---|---|---|
| bandwidth gb month | 5 GB/month | — |
| databases per project | 1 databases | — |
| function duration s | 30 seconds | — |
| function executions | 750000 exec/month | — |
| mau | 75000 users/month | — |
| storage gb | 2 GB | — |
| team members | 1 members | — |
Features
Appwrite · 13 features
- Account (Auth) — User authentication: email/password, magic URLs, phone OTP, anonymous, 30+ OAuth…
- Avatars — Generated avatars, country flags, credit-card icons, QR codes, favicons.
- Databases — NoSQL collections with attribute types, indexes, permissions per document/collec…
- Events System — Unified event bus: subscribe in Functions, Webhooks, Realtime using event string…
- Functions — Serverless functions in 13+ runtimes (Node, Python, Go, Ruby, PHP, Dart, Deno, S…
- Messaging — Multi-channel messaging: Push (FCM/APNs), SMS (Twilio/Vonage/Msg91), Email (Mail…
- Migrations — Import from Firebase, Supabase, NHost, or another Appwrite project.
- Permissions (ACLs) — Per-document / per-collection ACLs: Role.user(), Role.team(), Role.any(), Role.g…
- Realtime — WebSocket subscriptions to events: database changes, auth, storage, function exe…
- Sites — Deploy static and SSR frameworks (Next, Nuxt, SvelteKit, Astro, Remix) direct fr…
- Storage — File buckets with access control, auto-transforms (image preview), antivirus, en…
- Teams — Group users with shared access + roles. Used for row-level permissions on resour…
- Webhooks — HTTP callbacks on any Appwrite event. Signed with x-appwrite-webhook-signature.
Calendly · 16 features
- Admin Management — Centralized team billing + controls.
- Analytics — Team conversion + activity.
- Availability — Schedules + recurring hours.
- Buffers — Before/after meetings.
- Daily / Weekly Limits — Cap bookings.
- Event Types — One-off, group, collective, round-robin.
- HubSpot Integration — Native sync.
- Inline + Popup Embed — Widget for websites.
- Marketing Routing — Form-based routing to teams/reps.
- Meeting Polls — Group availability poll (like When2Meet).
- Paid Bookings — Stripe integration.
- Round-Robin — Distribute across team.
- Salesforce Integration — Native, deep sync (Teams+).
- SSO — Enterprise only.
- Webhooks — Real-time events.
- Workflows — Automated reminders + follow-ups.
Developer interfaces
| Kind | Appwrite | Calendly |
|---|---|---|
| CLI | Appwrite CLI | — |
| SDK | Android SDK (Kotlin), Apple SDK (Swift), Dart Server SDK, Deno SDK, Flutter SDK, Kotlin Server SDK, .NET Server SDK, Node.js Server SDK, PHP Server SDK, Python Server SDK, React Native SDK, Ruby Server SDK, Swift Server SDK, Web SDK (browser) | — |
| REST | REST API | Calendly REST API |
| GRAPHQL | GraphQL API | — |
| MCP | Appwrite MCP Server | — |
| OTHER | Realtime WebSocket | Calendly App, Calendly Embed Script, Calendly Webhooks, Chrome Extension, Zapier Integration |
Staxly is an independent catalog of developer platforms. Some links to Appwrite and Calendly may be affiliate links — Staxly may earn a commission if you sign up through them, at no extra cost to you. Pricing is verified against vendor pages at publication time — reconfirm before buying.
Want this comparison in your AI agent's context? Install the free Staxly MCP server.