Powerful voice applications, made simple.
Fonoster lets you build smart voice applications — from automated phone menus to AI-powered call assistants — without needing to be a telephony expert. Manage calls, route conversations, and connect with customers however they reach you.
What makes Fonoster worth launching.
Build custom call flows using simple building blocks like answer, say, gather, dial, and record — no telephony degree required.
Create voice assistants that understand speech and respond naturally using integrated AI and language models.
Convert speech to text and text to speech with support for Google, Deepgram, ElevenLabs, and other providers.
Add, manage, and route calls from phone numbers with full control over who answers and how calls are directed.
Record calls automatically, store audio securely, and review conversations for training, compliance, or quality.
Manage who has access to what with role-based permissions and secure authentication for your team.
If you fit one of these, Fonoster is probably built for you.
Practical scenarios where Fonoster makes a real difference.
Replace long hold times with a smart phone menu that routes callers to the right person or answers common questions automatically.
Create a voice assistant that answers calls, takes messages, and helps customers 24/7 without hiring extra staff.
Connect your team with a business phone system that handles extensions, voicemail, and call forwarding between offices.
Give your existing software the ability to make and receive phone calls — perfect for delivery confirmations, appointment reminders, or verification codes.
Fonoster is a complete platform for building voice applications that handle incoming calls, route conversations, and automate phone interactions. Think of it as a toolkit that lets you create everything from a simple "press 1 for sales" phone menu to an AI-powered voice assistant that talks to your customers naturally. You can connect phone numbers, set up call flows, record conversations, and even add text-to-speech or speech recognition — all through a clean, easy-to-use interface. Businesses large and small use Fonoster to build phone systems that feel custom-built for their needs, without the usual headaches of traditional telephony.
Fonoster gives you everything you need to build professional voice applications without the complexity of traditional phone systems. Whether you're a small business setting up your first automated phone menu or a larger team building an AI-powered call center, Fonoster handles the heavy lifting. People love it because it's flexible enough to handle simple call forwarding and sophisticated enough to power voice assistants that understand natural language. With an active open-source community and integrations with leading AI and speech services, Fonoster grows with your needs.
No per-seat pricing
Add your whole team for one flat fee.
Your data stays yours
Nothing passes through a third-party cloud.
Use your own domain
Run it on yourdomain.com with free SSL.
No terminal. No config. No docs.
Workflow automation
n8n.aurora.openzapps.com
Monitors, fixes & deploys 24/7
One platform. Every app. No surprises.
Your own private server — no shared hosting, no slowdowns.
Deploy Fonoster and as many other apps as you want — no per-app charges, ever.
Full ownership. No third-party access. Export anytime.
Unlimited apps, unlimited users, unlimited traffic. One bill.
SSL, backups, and updates run automatically behind the scenes.
Cancel anytime. Take your data with you. No questions asked.
What others charge for just the empty server.
Server costs only. Prices checked June 2026.
4 vCPU cores, 8 GB RAM, 150 GB storage
A solid place to start
| Provider | Their price | You save |
|---|---|---|
| DigitalOcean | $48/mo | $29 (60%) |
| Vultr | $40/mo | $21 (53%) |
| Linode | $48/mo | $29 (60%) |
| AWS Lightsail | $84/mo | $65 (77%) |
| Google Cloud E2 | $103.45/mo | $84.45 (82%) |
8 vCPU cores, 24 GB RAM, 400 GB storage
The sweet spot for most people
| Provider | Their price | You save |
|---|---|---|
| DigitalOcean | $144/mo | $95 (66%) |
| Vultr | $144/mo | $95 (66%) |
| Linode | $192/mo | $143 (74%) |
| AWS Lightsail | $164/mo | $115 (70%) |
| Google Cloud E2 | $231.17/mo | $182.17 (79%) |
16 vCPU cores, 64 GB RAM, 600 GB storage
For power users
| Provider | Their price | You save |
|---|---|---|
| DigitalOcean | $384/mo | $285 (74%) |
| Vultr | $320/mo | $221 (69%) |
| Linode | $384/mo | $285 (74%) |
| AWS Lightsail | $384/mo | $285 (74%) |
| Google Cloud E2 | $474.53/mo | $375.53 (79%) |
Prices checked June 2026. Excludes taxes, credits, backups, bandwidth.
Everything you need to know about launching Fonoster on OpenZapps.
Fonoster is a platform that lets you build phone systems and voice applications — like automated menus, call routing, and AI voice assistants — all from a single interface.
Not at all! OpenZapps handles everything technical to get Fonoster running. Once it's live, you can manage your voice apps through a simple dashboard and interface.
You pay OpenZapps a flat monthly fee to run Fonoster (and any other apps in our catalog). There are no surprise charges — just one predictable price.
Yes. Fonoster runs on your own private cloud space through OpenZapps, so your call recordings, customer data, and configuration stay completely under your control.
Absolutely. OpenZapps lets you connect your custom domain to Fonoster so your team and customers access everything through your brand's web address.
Try something new — same platform, same flat price.
Start free, launch Fonoster in seconds, and cancel whenever you want — zero risk.
Plans start at $29/month. Cancel anytime.
