Synthflow Reviews & Product Details

So far the configuration and setup is flowing well. I can understand scripts are prompts and having an Agent refer to a knowledge base is very helpful. I'm most likely going to purchase at least a month's plan to try the system out but it would have been nice to have test minutes to listen to how the agent handled calls. Good test center though in helping me add to my knowledge base or prompts for handling calls. Review collected by and hosted on G2.com.

They didn't seem to give me any free minutes to try the software. I also needed to purchase a phone number in order to Test my Agent but then when I went to test what the Agent sounded like or how they handled calls, I needed minutes. It's not real clear on how to purchase even a few minutes without upgrading to a full-service plan. Review collected by and hosted on G2.com.

I really like how easy Synthflow is to use. The setup takes almost no time, and the AI voices sound surprisingly real — not robotic at all. It’s been great for handling quick customer calls and confirmations without me having to jump on the phone every time. The platform feels reliable and simple, which makes it easy to trust for everyday use. Review collected by and hosted on G2.com.

not much if i am being honest. i think just the pricing for me which is not so bad for the services Review collected by and hosted on G2.com.

SynthFlow makes it incredibly fast to prototype realistic AI call agents. I love that you can design conversational logic, set variables, and connect APIs without any code. The interface feels intuitive, the testing flow is smooth, and the response accuracy has been better than I expected. It’s perfect for quick POCs or production-grade automation once you get familiar with the structure. Review collected by and hosted on G2.com.

The documentation is helpful but sometimes skips advanced examples, especially for integrating mid-call API requests or webhooks. A few more built-in templates for healthcare or logistics scenarios would make setup even faster. Still, support is responsive, and updates seem to come quickly. Review collected by and hosted on G2.com.

The visual Flow Designer combined with Variable Extraction is a game changer for building professional agents. I moved from other platforms where I had to rely heavily on prompt engineering to control the bot's behavior. With Synthflow, I can use Boolean variables and Branch Nodes to create deterministic paths (e.g., separating 'Qualified' vs. 'Unqualified' leads instantly). I also love the 'After the Call' action feature—it allows me to extract complex data (like shipment dimensions and weights) from the transcript automatically without needing to trigger fragile tools during the live conversation. Review collected by and hosted on G2.com.

The learning curve for managing Actions can be a bit tricky at first. It wasn't immediately obvious that I had to 'toggle on' an action in the Agent Settings tab before it would appear in the Flow Designer dropdown. Also, some of the error messages in the builder checklist (like 'Failed to parse FSM') are a bit too technical and don't clearly explain that a conversation loop simply needs an exit condition. A more user-friendly tooltip there would be helpful. Review collected by and hosted on G2.com.

I love that they make it very simple to create your AI assistant. It's one of those things where people tell you "easy to learn, hard to master." Getting in is pretty self explanatory, it only took me a YouTube video to get started. However getting into the nitty gritty involved a little more digging around and exploring. Review collected by and hosted on G2.com.

It's a quality of life change more than anything, the icons on the left side of the screen. Starting out I forget what any of those icons mean so I wish there was a way for it to be labeled. However you only get to see it sometimes, not sure why but it's more of a UX issue. Review collected by and hosted on G2.com.

Synthflow is a no-code platform for creating AI-powered voice and phone agents. Its goal is to let businesses (restaurants, clinics, service providers, etc.) deploy automated receptionists and customer service lines without writing code. Instead of having to stitch together telephony, AI, and APIs manually, Synthflow provides a drag-and-drop workflow builder where you design conversation flows, connect integrations, and launch an AI receptionist quickly. Review collected by and hosted on G2.com.

Paywall behind services. There are ways to achieve a free trial with minimal tasks to obtain. Review collected by and hosted on G2.com.

What I like best about Synthflow is that it doesn’t bury you in technical complexity. You don’t need to be a coder or spend weeks wiring together APIs just to get a usable AI voice agent. The builder is intuitive, the templates make sense for real-world sales conversations, and you can actually customize the agent’s personality and tone instead of being stuck with a robot that sounds like it’s reading off a DMV script. It feels like a tool designed for sales teams first, not just developers showing off AI tricks. Review collected by and hosted on G2.com.

A minor gripe is that while the interface is simple, it sometimes leans too far into minimalism. If you’re the type who wants a granular dashboard of metrics, you won’t find it here—at least not yet. It’s a bit like driving a car with a clean dashboard but no fuel gauge. Review collected by and hosted on G2.com.

First of all, I appreciate being able to try out the solution without having to pay upfront, as this made it easier for me to present similar concepts to potential clients. I also value the smooth integration options with third-party services, which enabled automation. Additionally, the clean user interface contributes to an overall enjoyable experience. Review collected by and hosted on G2.com.

Ongoing enhancements to the user experience, informed by user feedback and observed usage patterns, would help keep developers engaged and invested in the platform. Review collected by and hosted on G2.com.

The documentation is detailed and easy to understand, making it straightforward to get started. Setting up an AI agent is quick and simple. I appreciate that it can connect with Cal or GoHighLevel for booking purposes. Additionally, the ability to create custom actions with third-party integrations through custom actions is very useful. Review collected by and hosted on G2.com.

The absence of a free tier, combined with the relatively high pricing, makes this product less accessible. Review collected by and hosted on G2.com.

I genuinely appreciate that Synthflow offers AI Receptionists in Bulgarian, which perfectly aligns with my business needs. I love how modern and easy to use the design of Synthflow is; it looks well-built and accessible, which enhances the user experience significantly. The initial setup of Synthflow was pretty straightforward, which means I could get started with minimal hassle. I'm also impressed with the service to the extent that I would rate it a 10 out of 10 when it comes to recommending it to a friend or colleague. Review collected by and hosted on G2.com.

I find it challenging that the trial version of Synthflow doesn't allow real-time testing of the AI Receptionist without incurring costs for minutes. This makes it difficult to evaluate the product fully without a financial commitment. Review collected by and hosted on G2.com.