Scheduling and meetings decision
Zoho Bookings
A basic appointment-booking workflow is feasible for a single engineer in ~30 hours using open-source building blocks, but Zoho's platform integrations, global infra, and brand-level support are durable advantages that are costly to replicate.
Visit website↗Open-source builds that already do this
Every project below is open source and already does this job today. Fork one, self-host it, or take the parts you need — the build prompt further down assumes an empty file, and this is the shortcut past that. Licences differ; check the one on each card before you ship.
What a replacement has to do
- Provide a public booking page, allow selecting service and time slot, prevent double-booking, store bookings and customer details, send confirmation emails and calendar invites.
What it still won’t have
- deep integrations across Zoho's 50+ apps and unified admin
- Zoho-run global data centers and related platform reliability
- brand trust, enterprise SLAs and enterprise support
- compliance and certifications managed by vendor (if present)
- years of product polish and edge-case handling for complex schedules
What remains hard
- Infrastructure at scale
we prefer to own the entire technology stack, including running our data centers globally.
- Integration maintenance
Get access to 50+ applications, starting at /user/month.
- Brand trust
130 M+ Users Globally
First-year cost
No published price
Zoho Bookings does not publish a price we could read, so there is nothing to compare against. What building costs is below.
Money you would actually spend
Time you would spend
—
What you would spend
What we assumed
The verdict above measures whether you could build it. This one is only about money.
Runnable build prompt
Build a minimal appointment-scheduling web service using Node.js (Express), PostgreSQL, and React. Implement: (1) service definitions (name, duration, price), (2) provider business hours, holidays and per-slot availability generation, (3) booking API with transactional double-booking prevention, (4) public React booking page with slot picker and form, (5) email confirmations and iCal invites via SendGrid, (6) optional Stripe payment capture for paid services. Out of scope: multi-organization admin console, enterprise SSO, multi-region data centers, extensive analytics. Include input validation, concurrency-safe tests for booking race conditions, and basic integration tests for email and payment flows.
How we checked
How the score was reached
- Partly verdict base52
- An open-source build was found+5
- 3 cited sources+3
- 3/3 assessment runs agreed+4
- Hard moats found in the evidence-3
- Evidence score61
The base comes from the verdict. Everything under it is a check that either happened or did not, and each one is a fact frozen in this record rather than a judgement made at render time — so the same evidence always produces the same number.
How scoring works →Cited sources · 3
Every page the run actually retrieved.
- official productZoho | Cloud Software Suite for Businesses
- official productZoho WorkDrive | Online file management for teams
- open sourcealextselegidis/easyappointments
Integrity checks
What held up, and what did not.
