fonio.ai sells a self-serve German phone assistant with a WhatsApp add-on. SayTrue delivers a managed agent spanning phone, web chat and Meta inboxes.
The fonio.ai column uses the vendor's public homepage, pricing, WhatsApp and support-agent pages checked on the date below.
| Dimension | SayTrue | fonio.ai |
|---|---|---|
| Channels | Phone, a web chat widget, Facebook and Instagram inboxes, and a sales inbox. WhatsApp is not available. | The core product is a phone assistant; an integrated WhatsApp chatbot is an add-on and a human team can take over its chats. |
| Knowledge | Approved knowledge-base entries ground answers and every lookup is logged. | Company information can be imported from a website, the pricing page lists a self-learning knowledge base, and WhatsApp knowledge can come from a website URL or uploaded PDFs. |
| Human handover | Working hours govern transfers; unresolved requests become structured department tickets with context. | The assistant can arrange a callback or forward a call, and a human can take over a WhatsApp chat and return it to the AI. |
| Setup | Bytecode guides configuration and verifies the result with a real test call before go-live. | Registration and no-code setup are self-serve; the site says technical knowledge is not required and also offers a demo call. |
| Pricing model | Prices are not published; an engagement starts with a demo and pilot conversation. | Public named monthly subscription tiers include call-minute allowances, an annual discount and separately purchasable extra-minute packs. |
| Market focus | The same configurable platform serves client-specific industries without code forks. | The public use cases focus on German-speaking small and midsize businesses such as practices, hospitality and trades. |
A logged knowledge event. Each lookup is recorded, giving the client team a concrete trail when an answer is questioned.
A no-source outcome. When approved knowledge does not support an answer, the agent says so instead of filling the gap.
Hours-aware escalation. Configured working hours decide whether a live transfer is attempted or a structured ticket is created.
Grounded in your knowledge, honest about its limits, and handed to your team the moment it should be.