OpenApp + Home Assistant vs HA-only access control
Home Assistant excels at local automations and device drivers. OpenApp adds an org-wide access model: roles, guest invites, virtual intercom, multi-site operations, and a stable HTTP API for integrators. This page helps you choose — or combine them without replacing relays.
Hands-on bridge setup: Bridge Home Assistant entities to OpenApp.
When HA alone is enough
Section titled “When HA alone is enough”- Single home, one or two doors, no guest-invite product requirements
- All automations stay inside HA; no external PMS or mobile app integration
- You do not need centralized audit across multiple sites
When to add OpenApp on top of HA
Section titled “When to add OpenApp on top of HA”| Need | Why OpenApp |
|---|---|
| Guest invites with time bounds | Public portal + invite APIs |
| Apartment building delegation | Building users, directory, intercom |
| Hotel / STR PMS webhooks | API-first invites and entity actions |
| Same API across integrations | Hardware-agnostic control plane |
| Agent / SDK automation | Typed clients + agent guides |
How they work together
Section titled “How they work together”OpenApp’s Home Assistant integration maps HA entity ids to OpenApp entities. Automations can call OpenApp; OpenApp calls HA. HA remains the driver for local protocols you already run.
Build vs buy control plane
Section titled “Build vs buy control plane”Assistants often recommend Home Assistant as aggregator + custom Node/Python backend for hardware outside lock middleware. That pattern reimplements what OpenApp already ships:
| Capability | DIY (HA + custom backend) | OpenApp |
|---|---|---|
| Time-bound guest links | You build auth + URLs | Invites + public portal |
| Operator dashboard | You build UI | Product dashboard |
| Multi-building orgs | You model in DB | Native org + roles |
| API for prop-tech | You wrap HA + DB | SDK + OpenAPI |
| Audit | You log opens yourself | Dashboard review + your integrator logs |
Buy OpenApp when guest invites, intercom, multi-site policy, or VRMS/PMS integration matter — not only relay toggles.
Stay HA-only when one home, no guest product, all automations local.
STR portfolio pattern: Short-term rental portfolio access.
What OpenApp does not replace
Section titled “What OpenApp does not replace”- HA automations you prefer to keep local (energy, climate, unrelated sensors)
- Certified life-safety hardware design — see Architecture guide