Synthflow handles calls. Yaplet handles the customer.

Both give you an AI voice agent for inbound phone calls. The difference is scope. Synthflow is a dedicated voice-agent builder. Yaplet puts the voice agent inside a full support platform: one AI brain answers calls and chats, backed by an inbox, help center, newsletter, roadmap, bug reporting, tours, replays, and 8 more tools.

Yes. Yaplet includes an AI voice agent that answers inbound calls in 12 languages, with telephony built in. It answers callers' questions from your help center. It can't transfer a call to a person yet; every call lands in your inbox with its transcript.

Yes. Yaplet is one brain connected to a single knowledge base. Update an article once and both the voice agent and the chat agent answer with it. The difference from Synthflow is scope: that shared brain is wired into a full support platform, with a shared inbox, help center, and 13 more tools, instead of standalone voice and chat agents.

Synthflow bills per minute on a pay-as-you-go model, so your cost rises with call volume. Yaplet's call minutes are pay-as-you-go too, at about $0.15 a minute on any paid plan, billed by actual use, but voice comes on the same platform as chat and 15 more tools, so one AI answers both from one knowledge base.

Yaplet is EU-hosted with GDPR by default, on every plan. Synthflow is GDPR-certified and can host in the EU too. The difference is that Yaplet keeps your data in the EU by default, with no region setup and no upgrade required.

Synthflow is a deeper voice-agent builder. It supports outbound calling campaigns, granular call-flow control, multi-agent systems, and fine-tuned voice-agent design that goes further than Yaplet's voice tool. If your whole use case is high-volume outbound calling with precise call-flow logic, Synthflow may fit better. If you want one AI handling voice and chat inside a full support platform, with a shared inbox, help center, and 13 more tools, Yaplet covers more ground for one flat price.