An AI phone assistant (also called an AI answering service) answers incoming calls automatically, captures the inquiry, answers standard questions, and can book appointments when a calendar is connected. This page compares 20 providers available in the DACH region neutrally, so you can find the solution that fits your business. All information comes from the official provider sites (as of: July 2026); where information isn't public, that's noted explicitly. titanspear.ai is the site operator's own brand and is shown here using the same criteria as the other providers.
Comparison matrix
The following overview compares titanspear.ai with typical AI phone assistants — by feature, setup, and pricing model. The price row stays deliberately categorical — specific entry prices with sources are further down in the FAQ. You'll find the 20 individual providers listed below.
| Feature | titanspear.ai | Typical tools/providers |
|---|---|---|
| Round-the-clock call answering | Every call gets answered, even at night and on weekends | Usually also 24/7 |
| Appointment booking | Directly into your calendar | Often only with a connected calendar |
| Calendar/CRM integration | Inquiries go straight into your CRM | Varies by plan |
| German language quality | Native German, full sentences instead of a menu tree | Usually German-speaking |
| Setup | Agency-managed: we set it up, you sign off | Often self-service in a portal |
| Focus | Pre-qualification: the AI asks your criteria questions, you only talk to the matches | Usually general call answering |
| Pricing model | Predictable flat rate after an intro call | Monthly or per-minute, depending on the provider |
As of: July 2026 · All details come from the official provider sites and may change.
What to look for in an AI phone assistant
Regardless of provider, these eight buying criteria help you make an informed decision. Go through the list and ask every provider about each point directly. Here's how it reads for titanspear.ai:
| What to check | titanspear.ai |
|---|---|
| Round-the-clock call answering (including nights/weekends) | Yes — the AI answers every call, even outside business hours. |
| Appointment booking directly into your calendar | Yes — appointments land directly in your calendar. |
| CRM integration (inquiries land in the system) | Yes — integration with your existing CRM. |
| GDPR-compliant with a data processing agreement (Art. 28 GDPR) | Yes — GDPR-compliant, data processing agreement under Art. 28 GDPR. |
| Pre-qualification focus instead of pure call answering | Yes — the AI pre-qualifies calls and leads by your criteria, open to any SME in the DACH region. |
| Natural German language quality | Yes — native German speaker, talks in full sentences instead of a menu tree. |
| Setup: agency-managed instead of self-service tinkering | Agency-managed — we set up the AI for you, you listen in beforehand and sign off. |
| Pricing model: predictable flat rate | Fixed monthly price after an intro call — no hidden costs. |
What AI phone assistants are there?
The table lists target audience and pricing model per provider.
| Provider | Target audience | Pricing model |
|---|---|---|
| titanspear.ai | SMEs in the DACH region | Flat rate after intro call |
| fonio.ai | industry-agnostic | 99 EUR/month (Solo, 1,000 minutes) |
| VITAS | industry-agnostic | 40 EUR/month paid annually (49 EUR monthly) |
| Synora AI | Trades and HVAC | 999–2,499 EUR/month, fully managed |
| Placetel AI | industry-agnostic | from 69 EUR/month plus 9 EUR AI number |
| IONOS | industry-agnostic | from 39 EUR/month (30 calls, then 0.49 EUR/call) |
| Agentino | Trades (31+ industries) | from 49 EUR/month |
| voiceOne | industry-agnostic, incl. trades | from 29 EUR/month |
| HalloPetra | Trades (incl. HVAC, electrical) | 99 EUR/month (solo tier, 250 minutes) |
| LC-TOP (Sabine) | HVAC and electrical | 99 EUR/month (Starter, 100 minutes) |
| Haus B | Trades (Hessen, Saarland) | on request |
| HERO Voice | Trades (HERO software) | from 119 EUR/month (included in HERO OS) |
| PORTA by plancraft | Trades | free plan; 89.90 EUR/month (Flexibel) |
| safina.ai | industry-agnostic, own trades page | from 9.99 EUR/month (Basic, 30 minutes) |
| assistent24 | Trades | 199 EUR/month net plus 499 EUR setup |
| ScaleTalk | industry-agnostic, own trades page | from 99 EUR/month (Start, 500 minutes) |
| DAWEMA | Trades | 199 EUR/month net (Starter, 1,000 minutes) |
| autarc (KI-Bürokraft) | HVAC, electrical, solar | 39 EUR/user/month plus 0.40 EUR/minute |
| HermannHilft | Trades (around 50 industries) | 149 EUR/month (Pro, 250 minutes) |
| BureauFlow | Trades | free plan; 59 EUR/month (Starter) |
Below that, one neutral sentence per provider plus a link to the official site, so you can verify the details yourself:
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titanspear.ai
Brand of titanspear.agency (founder Flo Knies, Hessen); AI phone assistant with a pre-qualification focus for SMEs in the DACH region, set up and managed by the agency, appointment booking directly into the business's calendar; price on request. View official site -
fonio.ai
German-language AI phone assistant that answers calls, captures inquiries, forwards them, and schedules appointments; according to the provider, self-service setup in under 10 minutes. View official site -
VITAS
AI phone assistant from VITAS GmbH (Nürnberg), answers calls automatically and books appointments once a calendar is connected; self-service with a 30-day trial. View official site -
Synora AI
Done-for-you AI phone assistant for trades and HVAC businesses; answers calls around the clock and hands off qualified inquiries via WhatsApp, SMS, email, or CRM. View official site -
Placetel AI
German cloud telephony provider (Köln, part of Gamma); Placetel AI answers calls, responds to questions, books appointments, and forwards calls; available both self-service and managed; ISO 27001 certified, hosted in Europe; free 10-day trial. View official site -
IONOS
AI phone assistant from hosting provider IONOS (Montabaur); answers calls around the clock, answers questions, and from the Flex Pro plan (69 €/month) books appointments via Cal.com or Calendly; self-service via call forwarding from your existing number, hosted in Europe; 1 month free trial (promotional offer, as of July 2026), cancelable monthly. View official site -
Agentino
AI phone assistant for trades businesses (according to the provider, used across 31+ industries); answers calls via call forwarding, captures the inquiry, checks calendar and service area, and puts emergencies straight through during on-call hours; self-service via app, GDPR-compliant with servers in Frankfurt; free 14-day trial. View official site -
voiceOne
AI phone assistant with 24/7 call answering and, according to the provider, unlimited concurrent calls; industry solutions including for trades businesses, multilingual at no extra cost; self-service setup via the web interface, GDPR-compliant with servers in the DACH region; free test call available. View official site -
HalloPetra
“Petra,” the AI office assistant for trades businesses (including HVAC, electrical, refrigeration/AC); answers calls around the clock, from fault reports to appointment scheduling; larger plans include a personal setup appointment; trial access on request. View official site -
LC-TOP (Sabine)
“Sabine,” the AI phone assistant from trades-software provider LC-TOP (focused on HVAC and electrical); takes over automatically when no one is available in the office, and forwards call summaries to the team by email; configured by the LC-TOP team; free 14-day demo. View official site -
Haus B
AI phone assistant from Haus B GmbH (Saarbrücken) for trades businesses; takes appointment requests, customer-service inquiries, and emergencies around the clock; according to the provider, servers are in Germany and billing applies only to active calls, ERP integrations are announced; per the provider's site, currently available in Hessen and Saarland; price not public, demo on request. View official site -
HERO Voice
AI phone assistant from HERO Software GmbH (Hannover), integrated into the HERO trades software and also available standalone; answers calls, asks targeted follow-up questions, and logs the inquiry as a task or summary; per the provider's FAQ, independent appointment booking is currently not possible — instead it records a preferred time window and a callback note; included from the HERO OS plan (from 119 EUR/month), the entry-level HERO Select plan does not include HERO Voice; standalone version free 14-day trial. View official site -
PORTA by plancraft
“PORTA,” the AI phone assistant from Plancraft GmbH (Hamburg) for trades businesses; answers calls via call forwarding around the clock, asks follow-up questions, and automatically logs every call; self-service setup via your own call forwarding, mobile and landline can be connected in parallel; permanently free plan with 60 credits per month, “Flexibel” plan 89.90 EUR/month plus VAT from 160 credits. View official site -
safina.ai
AI phone assistant from DK Tech Solutions UG (München) with its own trades-industry page; captures faults and quote requests, asks about type of fault, safety risks, and urgency for emergencies, and notifies immediately; in-call appointment booking from the Pro plan, CRM integration via webhook as well as Zapier, Make, and n8n; self-service setup, according to the provider developed and hosted in Germany; from 9.99 EUR/month (Basic, 30 minutes), free 14-day trial. View official site -
assistent24
AI phone assistant from Christian Florschütz (Freilassing) with its own trades page; detects and prioritizes emergencies such as heating failure, power outage, or burst pipes, captures job data, and coordinates appointments via Google, Outlook, and Apple Calendar; setup by the provider's team, one-time fee of 499 EUR net; “Phone Business” plan 199 EUR/month net with 250 included minutes — listed on the provider's site as a limited-time July offer; free 14-day trial. View official site -
ScaleTalk
AI phone assistant with its own trades-industry page; coordinates appointments factoring in travel time and job duration, forwards emergencies around the clock, and connects calendar, knowledge base, webhooks, and API; self-service onboarding, according to the provider servers are in Frankfurt and audited by DataGuard; from 99 EUR/month (Start plan, 500 call minutes); operator details were not server-side readable on the site. View official site -
DAWEMA
AI phone assistant from DAWEMA (owner Dieter Haskamp, Lohne) for trades businesses; answers calls around the clock, books appointments with a live calendar check and SMS confirmation, qualifies emergencies, and forwards them to the stored emergency number; integrates with trades software such as Streit V.1, openHandwerk, Sage Handwerk, pds, and ToolTime; provider-managed setup in one to two weeks; “Starter” plan 199 EUR/month net with 1,000 included minutes, processing according to the provider exclusively on servers in the EU. View official site -
autarc (KI-Bürokraft)
“KI-Bürokraft” (“AI office assistant”), the AI phone assistant from autarc GmbH, according to the provider trained on terminology from HVAC, electrical, solar, and general construction; distinguishes emergency, appointment request, maintenance inquiry, and pure info request, checks the technician's calendar, and books appointments with binding confirmation; setup handled personally with a dedicated contact; two-part pricing of 39 EUR per user per month on an annual plan (49 EUR month-to-month) plus 0.40 EUR per phone minute; 14-day trial period. View official site -
HermannHilft
AI phone assistant from RN Edge Solutions GmbH (Schramberg) for trades businesses, with dedicated pages for around 50 trades; answers emergency-service calls around the clock and forwards them to the on-call service, captures callback requests as well as quote and spare-parts inquiries; provider-managed setup via call forwarding; “Pro” plan 149 EUR/month with 250 minutes; free test call without registration; server location and hosting details not public. View official site -
BureauFlow
AI phone assistant from Bureao Flow GmbH (Trier) for trades businesses, with sub-pages per trade; answers calls in German around the clock, books appointments automatically, summarizes calls by email, and connects calendar as well as CRM via webhook; self-service setup; permanently free plan with 15 calls per month, “Starter” plan 59 EUR/month plus VAT with up to 50 calls; according to the provider, German servers. View official site
Who is each AI phone assistant suited for?
The target groups from the table above, sorted by business type. Where titanspear.ai has its own industry page, it's linked: trades, law firms, real estate, property management and e-commerce.
| Business | Candidates from the comparison | What matters |
|---|---|---|
| Trades businesses (HVAC, electrical, roofing, painting) | Twelve of the 20 name trades as their target group: HalloPetra, Agentino, LC-TOP (Sabine), BureauFlow, autarc, DAWEMA, HermannHilft, PORTA by plancraft, assistent24, Synora AI, Haus B, and HERO Voice. Add the industry-agnostic providers with their own trades page (voiceOne, safina.ai, ScaleTalk) and titanspear.ai with its own trades page. | Emergency detection, calendar integration, self-service or managed setup. |
| Small businesses, freelancers, and service providers | The industry-agnostic providers with a public entry price: safina.ai (from 9.99 EUR), voiceOne (from 29 EUR), IONOS (from 39 EUR), VITAS (40 EUR paid annually), Placetel AI (from 69 EUR), and fonio.ai and ScaleTalk (99 EUR each). Plus titanspear.ai as the managed option with a flat rate after an intro call. | Included volume matching your call load, forwarding your existing number, a trial period with real calls. |
| Law firms (attorneys, tax advisors) | titanspear.ai (own law-firm page) as well as the industry-agnostic providers fonio.ai, VITAS, Placetel AI, IONOS, voiceOne, safina.ai, and ScaleTalk. | Confidential intake, deadline detection, no legal advice given by the AI. |
| Real estate and property management | titanspear.ai (dedicated pages for real estate and property management); of the other 19, none names property management as a target group — the industry-agnostic ones are an option. | Structured intake of tenant issues, forwarding emergencies such as burst pipes. |
| E-commerce and mail order | titanspear.ai (own e-commerce page); no other provider in the table names online retail as a target group. | Order intake, shipment status, returns over the phone. |
| Medical practices and healthcare | titanspear.ai does not offer a solution for medicine or healthcare professions. Practice specialists such as aaron (Doctolib) are not part of this comparison, see the aaron alternative below. | Practice-software integration and prescription logic — criteria this SME comparison doesn't cover. |
How to find the right provider
Which provider is right for you depends mainly on whether you want to set up the assistant yourself or prefer a managed setup, which industry you serve, and what your calendar or CRM system looks like. The most honest way to compare is to hear an AI phone assistant live and experience exactly what your callers would experience. How to do that is explained under Try an AI phone assistant for free. For five frequently searched providers, there are also dedicated detail comparisons: the aaron.ai alternative (Aaron is Doctolib's practice assistant), the fonio.ai alternative, the HalloPetra alternative (the AI office assistant for trades), the VITAS alternative, and the IONOS AI phone assistant reviewed. If you're looking less for an assistant and more for a digital receptionist that greets callers and schedules appointments, also compare the AI receptionist. And if you're missing the Telekom KI-Phone from this list: that's a smartphone with an AI assistant for private users, not a phone assistant for businesses — the distinction is explained in Telekom KI-Phone: what it can and can't do.
How we compared
We compared six criteria: round-the-clock call answering, appointment booking, calendar and CRM integration, German language quality, setup model (self-service or managed), and whether the price is published. Sources are exclusively the public provider and pricing pages, last checked in July 2026; where something isn't public, that's noted. titanspear.ai is the site operator's own brand and is presented using the same criteria as the other 19. No provider paid for inclusion, there are no affiliate links, and all provider links are set to nofollow. Compiled by Flo Knies, founder of titanspear.ai. Missing a provider, or something no longer accurate? Let us know, we'll check it and update.