Design, prototype, and publish voice apps. Create voice apps for Amazon Alexa and Google Assistant. No coding needed.

SaaS No Code Voice













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Mar 10, 2019

Lego-isation of developer tools

The trend

When you look at the evolution of developer tools in terms of UI/UX the last couple of years, it went from very “rough products” (which, very often, consisted of a text based doc, and an API that you interacted with your terminal), to very sleek products with interfaces that are on par with the best software out there. I see more and more developer tools that are as easy and as pleasant to use as Lego. And similar to Lego bricks, behind their simplicity, you can build incredibly complex things.

This Lego-isation of the developer tools materializes through the functional and visualaspects:

  • Functional: instead of providing you with a plain “text based API”, the new generation of developer tools also provide functional blocks ready “out of the box”, that users can combine, like Lego bricks, to build what they need much faster.

  • Visual: instead of writing code in your IDE and running scripts in your terminal, many many of these tools offer great online interfaces where you can directly use their API / combine their functional blocks (kind of WYSIWYG interfaces).

In that perspective I find Voiceflo super interesting.


👍 I find the field of VUI (Voice User Interface) super interesting. As we’re still early, there are opportunities to invent new ways of interacting with software through voice. Which is what Voiceflow enables.

🤔 When I ask my friends who have home voice assistants, most are only completing basic tasks such as asking for the weather, news or playing music. That being said, I see that as an opportunity for more voice apps. In most cases, what hasn’t be nailed is the VUI/VUX.


👍 The market is booming, in 2018 tens of million of Amazon Echo devices (the market leader) have been sold, the number of users more than doubled and developers have created a total of 70 000 skills for Alexa.

👍 And home voice assistants are only one type of device. Think of how voice will be used in your car, with your earpods, at work etc… I don’t believe in a “universal” voice app that will do everything, but rather in verticalized / very specialized voice apps. This is why an infrastructure service like Voiceflow makes sense, to me, to build these vertical apps.

👎 As voice apps are still relatively new, so there’s a lot of “user education” to be conducted (from discovery so that people find these apps as well as teaching them how to use voice based apps).


👍 I particularly like that developers as well as people with no coding skills can use it. The drag and drop interface is really intuitive.

🤔 The big question is the “depth” that such tools can offer. If you can only build basic voice apps with it, it will be a problem.

Business model

👍 I like that they added a “Hire an expert” feature enabling people to find developers to build an app with Voiceflow. A marketplace aspect on top of the SaaS one.