Comparison · As of 10 Oct 2026

Zammad alternative with WhatsApp and a built-in phone system

Zammad is a mature open-source ticketing system. If you mainly handle email tickets, it serves you well. The-Y CRM is for teams whose customers reach them via WhatsApp, phone and email at the same time – and who want all of that in one tool, with a built-in phone system and CRM.

Try it in the cloud – freeTry the demoNo sales call, no credit card. Demo without sign-up. Free account: all features except your own branding, up to 3 users.

The difference in one sentence

Zammad connects an external phone system and shows you who's calling. The-Y CRM is the phone system – together with an inbox for every channel, contacts, deals and invoices.

Why The-Y CRM exists

I'm Thomas Nuri Yilmaz, Head of IT at Dove Touristik and founder of The-Y. In 2024 I faced exactly this question: I was looking for a ticketing system, tested osTicket, then Zammad, and found Chatwoot while searching for a respond.io alternative. I ran Zammad, Chatwoot and n8n myself. What I was missing was everything in one place: WhatsApp, phone and email in one inbox, with a phone system of its own. Today we at The-Y no longer work with any of these tools – we work with The-Y CRM.

Zammad and The-Y CRM compared

Zammad
The-Y CRM
Own phone system
✗only connects an external phone system
✓IVR, queues, voicemail, calls in the browser
WhatsApp
~hosted only from Plus (€25 annually / €27 monthly per agent); included when self-hosted
✓on every plan, including Free
Free trial
~hosted 30 days; self-hosted unlimited
✓permanently, up to 3 users
Hosted
from €7 (annually) or €9 (monthly) per agent
€0 (Free, servers in the EU)
Self-hosting
✓software €0
✓€0 with a free key (up to 3 users, Free limits) · no limits €10/month or €240 one-time, whole team
Deals, pipeline, invoices
✗customers & organisations yes, sales and invoicing no
✓invoices and quotes with payments, open items, dunning, receipts and an export for your tax advisor (DATEV, BMD)
Knowledge base
✓hosted from Professional; included when self-hosted
✓with a public help portal
Server RAM (self-hosted)
from 6 GB, +4 GB with Elasticsearch
from 4 GB, phone system included
Open source
✓AGPL-3.0
✗no, but your data can be exported at any time
Maturity
✓stable for years
~Alpha, running in our own daily operations

Zammad according to its official pricing page and documentation, accessed 10 Oct 2026 (sources below). Zammad prices are net. Other channels in The-Y CRM: email, Instagram, Facebook Messenger, SMS, web chat – all in one inbox. Details on The-Y CRM as of version 1.1.24 (11 Oct 2026) – new features include finance up to the export for your tax advisor (no tax advice), Facebook and Instagram posts with a content calendar, answering comments, WhatsApp templates with a preview and installing it as an app on your phone (no push notifications yet).

Stay with Zammad if …

  • you need open source or want to adapt the code yourself,
  • you mainly handle email tickets with SLAs and fixed processes,
  • you need software that has proven itself for years with many agents – The-Y CRM is Alpha.

Choose The-Y CRM if …

  • customers reach you via WhatsApp, phone and email and everything should land in one inbox,
  • you want no additional phone system and no plan upgrade just for WhatsApp,
  • you need deals and invoices next to tickets – right up to the export for your tax advisor,
  • you'd rather pay a flat fee than per agent: self-hosted €10 a month or €240 one-time – however big your team is.

Example: 5 people, WhatsApp and phone

Zammad hosted
€125
per month, net, billed annually (monthly €135) · 5 × Plus, because hosted WhatsApp starts at Plus
plus: an external phone system
Zammad self-hosted
€0
licence
plus: a server with at least 6 GB RAM, an external phone system, your own maintenance
The-Y CRM self-hosted
€10
per month – or €240 one-time
plus: a server (e.g. €14.50 net/month), a phone number, your own maintenance (backups). Phone system included. No server of your own?

Meta's WhatsApp fees and call minutes cost the same with every tool and go directly to the provider. All the details, with a calculator for every country: What The-Y CRM really costs. For up to 3 people, The-Y Free (€0) is enough – in our cloud or self-hosted with a free key.

Don't want to run a server yourself?

Write to us. We get the server, install The-Y CRM and keep it up to date. You pay the licence and the server costs 1:1, exactly as they are billed – no markup, no service fee.

Server guide price: about €8–15 net per month (e.g. netcup VPS 500 or 1000, see the costs page). We do this case by case until there's a ready-made hosting package.

Test it in about 30 minutes

  1. Create a free account on crm.the-y.at.
  2. Connect a mailbox, WhatsApp number or phone – guides in the documentation.
  3. Invite your team and see if it fits. Contacts and companies can be imported via CSV.

Like it? Then move to your own server – free with a free key (same limits as Free) or without limits with the self-hosting licence (guide, server requirements) – or let us do it for you.

Frequently asked questions

Is The-Y CRM open source like Zammad?

No. The-Y CRM is not open source. Your data belongs to you and can be exported at any time; WhatsApp, phone, SMS and AI run through your own accounts – no vendor lock-in.

Can I self-host The-Y CRM like Zammad?

Yes, with Docker on your own server – in two ways: free with a free key (created in the app after sign-up; the same limits as Free: 3 users, 1,000 outgoing messages across all channels and 200 outgoing call minutes per month, 2 GB; no support, feedback during the Alpha is welcome) or without usage limits with the self-hosting licence for €10 a month or €240 one-time (during Alpha and Beta; from the Live release €20 or €480). The €10 and the €240 get you the same licence – one as a subscription, the other perpetual.

Do I need an additional phone system?

No. The phone system is built in: IVR, queues, voicemail, click-to-call and analytics. All you need is a phone number from a telephony provider – currently sipgate, Zadarma or Twilio, more to follow.

What does WhatsApp cost?

The-Y charges nothing extra. You pay Meta's fees directly to Meta. Since 1 Oct 2026 Meta also charges for replies within the 24-hour window; the first 1,000 per number per month are free. Those 1,000 are Meta's free allowance – not to be confused with the limit of The-Y Free (1,000 outgoing messages per month across all channels). Details on the costs page.

Can I use my existing WhatsApp number?

Yes. If you already use the WhatsApp Business app, you can keep it: The-Y CRM connects the number via Meta's WhatsApp Business Platform as well, replies you send from your phone also appear in the CRM, and up to 180 days of history are imported. If the number runs in the personal WhatsApp app, you first switch it to the WhatsApp Business app or release it from WhatsApp – that's Meta's rule for the Business Platform and applies just the same with Zammad, Chatwoot or Twilio. The number stays yours.

What happens to my licence if The-Y ceases to exist?

Then all self-hosted installations – with a free key, a monthly licence or a lifetime licence – first get a final update that removes the licence check and all usage limits. After that they keep running for free, without limits and indefinitely; your data is on your server anyway. This is also in our Terms of Use. If you use Free in our cloud, you can export your data at any time.

Does the self-hosted version phone home?

Only for the licence check: the installation regularly checks its licence key online with our licence server. If the server can't be reached, it keeps running normally for 14 days, then read-only until the check works again. Your data stays on your server. This is also in our Terms of Use.

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Sources

Zammad is a trademark of Zammad GmbH. This comparison is independent and made to the best of our knowledge; please report errors to office@the-y.at and we'll correct them right away.