fonio Reviews & Product Details

We use fonio to build AI phone assistants for small businesses. Three things convinced us: First, hosting in the EU, which is a must for our clients. Second, appointment booking directly within the call – the assistant checks the calendar live, books the slot and then sends a structured summary by email. Third, transparency: the action details show for every call which tools were used with which parameters, which makes troubleshooting and fine-tuning the prompt much easier. On top of that, the support team answers even detailed technical questions point by point and honestly. Compared to other voice AI platforms we work with, the collaboration with the fonio team is noticeably more direct and solution-oriented. Review collected by and hosted on G2.com.

The platform evolves quickly, and not every change is documented right away – after updates it is worth double-checking your own configuration. Some behavioural details can only be controlled via the prompt rather than through a setting, which requires some experience in prompt design. Review collected by and hosted on G2.com.

What I particularly like about fonio is how flexible and customizable the AI phone assistance can be. We use fonio in a volunteer-organized state association with over 300 member clubs. Here, it is a huge relief when callers not only get transferred but also receive competent answers to their questions over the phone.

The combination of our own knowledge database, individual conversation instructions, personalized greetings, forwarding, and automated emails opens up many possibilities for us to build a truly helpful digital office.

I especially appreciate that we can give our assistant K-I-Rina her own personality: friendly, knowledgeable, sometimes a bit cheeky, and fittingly for our carnival association, also a bit whimsical. This turns a technical solution into a sympathetic part of our association's communication.

Of course, setting it up requires a lot of fine-tuning and testing. But the diverse customization options make fonio interesting for us. Review collected by and hosted on G2.com.

What I currently dislike are mainly the limitations with more complex tasks and the pricing model for additional features and communication channels.

We don't just want to use fonio as an intelligent answering machine, but to build a digital office for our volunteer-organized state association. For this, we have set up an extensive knowledge database and configured our AI assistant individually. Nevertheless, we experience that existing information is sometimes not reliably found, answers remain superficial, or the AI promises functions that are not technically set up.

Setting up forwarding, email actions, and individual conditions also requires a lot of trial and error. A more transparent representation of which knowledge sources were actually used and why certain actions are triggered would be helpful.

However, I am particularly critical of the pricing structure. We invest a lot of time and work in building an AI that knows our association, its structures, regulations, and offerings. This knowledge is already available. Whether the AI provides it over the phone, in a chatbot on our homepage, or via WhatsApp, initially makes no fundamental difference from my point of view. Nevertheless, additional communication channels must each be paid for separately.

If we wanted to use our K-I-Rina both by phone and on our website and via WhatsApp, our costs would quickly multiply under the current model. This is particularly difficult to convey for non-profit organizations and volunteer-run associations.

Therefore, I would wish for a cross-channel model: a central AI with a shared knowledge database that is accessible through various communication channels without each additional channel being practically calculated as a standalone product. Different usage volumes and actual additional costs can, of course, be reflected in the price. But merely providing the same knowledge over another channel should not lead to a disproportionate increase in costs.

I also see development potential in web research and the actual sending of documents from the knowledge database.

I fundamentally consider fonio to be a promising product. All the more, I wish that technical reliability, functionality, and pricing will better align in the future – especially for organizations that want to reach as many people as possible with limited financial resources. Review collected by and hosted on G2.com.

What convinces me about fonio is how quickly an idea becomes a professionally usable AI phone assistant. The setup is surprisingly uncomplicated, while conversation management, knowledge, and processes can be very individually designed. It is particularly valuable to me that calls are professionally answered even when I am in a meeting, with a client, or on the go. The caller receives a competent first response, and I get the relevant information forwarded in a structured manner. This saves time, prevents missed opportunities, and simultaneously improves accessibility. For me, fonio is not just a digital answering machine, but a meaningful additional component in daily customer contact. Review collected by and hosted on G2.com.

Currently, there is little reason for criticism. Certain nuances in conversation management require some time and optimization until the AI assistant reacts exactly as desired in one's own company. I would also like more options for integrations and individual evaluation of conversations. On the positive side, fonio is continuously being developed and adjustments can be implemented quickly. Review collected by and hosted on G2.com.

Without a doubt, the focus on data privacy. I run an agency in Germany, and without fonio, operating a voice agent simply wouldn't be possible for us. Review collected by and hosted on G2.com.

The pace of development is both a strength and a challenge. fonio is growing rapidly and the product evolves almost every day. I appreciate the constant improvements, but it does mean I regularly have to take time to familiarize myself with new or changed features, which can be demanding in day-to-day agency work.

Also, some finer settings can't be configured yet, since the platform is clearly designed with beginners in mind. As an agency, we'd sometimes like more control over the details. That said, new features are added every day, so it's definitely heading in the right direction. Review collected by and hosted on G2.com.

I use fonio as a phone and chat assistant. It saves us a lot of time: fonio can directly enter appointments into our calendars and forward callback requests to the right person, who immediately has the necessary context. This greatly relieves our office because calls do not have to be forwarded first. I can customize fonio very individually - including how the AI behaves towards customers - and adapt it to our tone and brand. By accessing our CRM, fonio knows customer data and previous conversations. The AI prepares information for employees so they can respond directly with context and has this context itself. This ensures a pleasant customer experience. The setup was very easy. Review collected by and hosted on G2.com.

Nothing to mention here. Review collected by and hosted on G2.com.

What I particularly like is that fonio is really easy to use and the results are quick. The quality of the transcriptions is very good and even with longer conversations, it saves me a lot of time in everyday life. I find the uncomplicated operation and speed particularly practical. Review collected by and hosted on G2.com.

Sometimes individual transcriptions could be a bit more accurate, especially with unclear speech or when multiple people are speaking at the same time. Otherwise, I have little to complain about so far. Review collected by and hosted on G2.com.

Overall, we're very happy with fonio, both with the software and with what it can do. Our AI assistant works reliably and handles even really complex topics and requests. The usability is excellent: setting it up and changing it later is intuitive, and we didn't need a long learning curve to get it working the way we wanted. Review collected by and hosted on G2.com.

The only thing I'm missing is a built-in phone number option. Right now I need a separate SIP provider to get a virtual phone number, which I then forward to fonio. It would be great to pick a number directly in fonio from a major German city. For us, Berlin would be the first choice. That would make onboarding even simpler and remove one extra vendor from the setup. Review collected by and hosted on G2.com.

The setup was surprisingly quick and straightforward, even as a sole proprietor without a large team. The assistant reliably answers calls, systematically asks for the name and concern, and then sends me a summary via email and SMS. I was pleasantly surprised that the notification arrived even during a dropped test call with a poor connection – the name and callback number were there, so I could have definitely called back. For me as an IT service provider with a small but important call volume, it's just right. The EU hosting was also a topic for me, especially because of more sensitive clients. Review collected by and hosted on G2.com.

The sound quality was initially a bit choppy depending on the connection – but that is due to the internet/line quality of the respective caller and not Fonio itself; with the right settings, this could be managed well. Otherwise, there was little to complain about. Review collected by and hosted on G2.com.

I like the flexibility of Fonio's AI, which responds to what is said almost like a real person. Many of my clients have confirmed this. The natural voices are also impressive, and it's hardly noticeable that it's a computer, which strengthens trust. The initial setup was super easy, it only took five minutes and required no programming knowledge. And if there are any problems, support is immediately available, testing, checking, and helping with a quick solution that works. Review collected by and hosted on G2.com.

For someone with relatively low call volume, the subscription models are, of course, significantly less financially attractive than the previous pay-per-use model. And it's a shame that further developments are only made available to subscribers. Review collected by and hosted on G2.com.

I love that the AI assistant in Fonio sounds very natural. It's great that you can finely adjust how the agent should respond to different topics. The ability to fill the knowledge base very well makes it easy to optimize the assistant. I also like the handling, which is really simple. The super-fast and stable notification function via Slack and email is extremely helpful for us. Review collected by and hosted on G2.com.

Currently, only the interface itself. You can somehow only archive or delete a conversation. It would be cool if you could also indicate the processing status, write notes, possibly for another person to edit. And the summary could be a bit longer. Review collected by and hosted on G2.com.