The classic question every support budget review hits: run a free open-source helpdesk, or pay for convenient SaaS? This article computes what each actually costs over three years, no agenda beyond numbers you can defend.

(Mild spoiler: the answer depends on the one variable everyone forgets, your engineer’s hourly rate.)

The cost of open source (e.g. self-hosted Chatwoot)

What’s visible: $0 license.

What actually happens:

Line item	Estimate/month
VPS/cloud (2–4 GB RAM)	$10–30
Initial setup (install, domain, SSL)	1× $50–100
Upgrades & maintenance (average)	2–4 hours/mo
Backups, monitoring, incidents	±1 hour/mo

If your engineer’s time is worth $15–25/hour, just 3 hours/month of maintenance is $45–75/month. Year-one total easily crosses $1,000, even with a zero-dollar license.

Plus the unlisted risk: who’s on-call when the server dies during your flash sale?

The cost of SaaS (e.g. Zendesk/Freshdesk)

What’s visible: $19–55 per agent/month, multiplied by seats.

For a five-agent team: $1,100–3,300+/year. Plus:

AI features are usually separate paid add-ons.
WhatsApp integration is often an add-on too.
Currency swings raise the bill.

What you’re buying: zero ops, formal SLAs, an integration ecosystem, and audit comfort.

The third option nobody mentions: managed enterprise open source

Between those poles sits a fast-growing category: open-source-based platforms run by a vendor. KIRA.id is an example, a Chatwoot foundation (MIT open source) run as a managed service with an AI agent, from Rp 49k (~$3)/month:

No server ops (like SaaS),
With open-source transparency (the foundation is publicly auditable),
Priced in local currency, not dollars.

For small-to-mid teams, this category is often the optimum: costs near self-hosting, hassle near zero.

Decision table

Your situation	Most sensible choice
Have DevOps + highly sensitive data	Self-host open source
Team <10, no IT staff, tight budget	Managed open source (e.g. KIRA.id, from Rp 49k/~$3)
Enterprise needing SLAs + global procurement	Zendesk/Salesforce Service Cloud
Email-only, very small team	Self-hosted FreeScout/UVdesk

Conclusion

“Free” open source is a cost paid in engineer time. SaaS is a cost paid in per-head dollar bills. For most Indonesian businesses in between, managed enterprise open source offers the best balance, and it now starts at coffee money.