
CallMate.ai
Simple AI Phone Assistant
AI agent that calls Spanish landlords and books your viewings

Retell AI
Bland AI
Bolna
Voiceflow
Smith.ai
Deepgram
Rosie
Voice AI Infrastructure for the Internet

Which is more popular?
Based on our record, Vapi seems to be more popular. It has been mentioned 9 times since March 2021.
Website, pricing, platforms and company facts side by side.
|
|
|
|
|---|---|---|
| Website | callmarta.com | vapi.ai |
| Pricing | — | |
| Company | Startup from Spain · 2026 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


Marta — AI voice agent that calls Spanish landlords and agencies for renters and buyers in Spain. Paste Idealista/Fotocasa links, get viewings booked, recordings and transcripts. Pay per result, 3 free. callmarta.com
No description of Vapi yet.
What each product offers, as listed by its team.


No features have been listed yet.
Walkthroughs and reviews on video.
No CallMarta videos yet. You could help us improve this page by suggesting one.
Exploring Vapi A Quick Review - Discuss what is needed to compare to Air.Ai
More videos
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing CallMarta and Vapi.
CallMarta's answer
Because Marta does the part that decides the outcome in Spain: the phone call, in Spanish.
CallMarta's answer
Marta is built for how the Spanish rental market actually works: by phone, in Spanish, in office hours. She is an AI voice agent that makes the outbound calls for the person looking for a home.
CallMarta's answer
Anyone looking for a home in Spain who does not want to spend their week phoning agencies in Spanish:
Coverage is all of Spain, for rent and for purchase, islands included.
Share your experience with using CallMarta and Vapi. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


We have no reviews of CallMarta yet. Be the first one to post
Developers shouldn’t have to guess what happens to their conversations once they hit the platform. With Vapi and Retell, “ownership” often comes with strings attached. SigmaMind AI takes the opposite stance: your data...
Iâd recommend Vapi if you are planning to create advanced AI meeting agents. It is great for creating custom flows and integrates easily with all of your databases, CRMs, and knowledge bases.
Vapi is a San Francisco-based AI Voice Agent Development Agency founded 2023. This company is well-known for its developer-first platform that supports businesses to deploy their own AI voice agents. Vapi is one of...
Recommendations tracked on public social media and blogs since March 2021.


Tracking CallMarta since Sep 2026.
The Vapi platform helps developers build and deploy voice agents and AI products in Python, React, and TypeScript. It provides two ways to make intelligent voice apps. It's assistant's option allows you to create simple conversational... - Source: dev.to / 7 months ago
It can make/take phone calls[0], but they need to be prompted on the nature of the call, the data they need, and how to collect it. They can also output the results of the call via API. An AI agent from Masterworks recently called me... - Source: Hacker News / 8 months ago
### Resources **VAPI Documentation:** [vapi.ai/docs](https://vapi.ai/docs) – Voice agent API, webhook integration, real-time call transcription, intent detection endpoints, assistant configuration, function calling. **Twilio Voice... - Source: dev.to / 9 months ago
When comparing CallMarta and Vapi, you can also consider the following products.

CallMate Al is an advanced Al calling software that automates phone calls and extracts call data to streamline customer service operations.
Compare CallMate.ai to CallMarta or Vapi:

API that enables developers to build human-like voice agents
Compare Retell AI to CallMarta or Vapi:

Simple AI makes phone calls so you don’t have to
Compare Simple AI Phone Assistant to CallMarta or Vapi:
