AI Assistant is a mobile app built around a voice AI character.
An MVP for iOS and Android with an animated voice AI assistant, speech recognition and text-to-speech, a subscription and an interface that stays simple.
The client needed a clear MVP of an AI assistant with voice interaction and a 2D character that feels alive and moves between states: waiting, listening, thinking and answering. The product was meant as an easy entry point into AI services for a broad audience, including people who find complex interfaces and typing awkward.
A voice-led flow
A secure architecture
A subscription model
An animated characterBeetrail built the MVP of a mobile AI assistant with a voice character for iOS and Android. People interact by voice: the app hears the request, answers out loud and syncs the speech with the animation of a 2D character that feels alive and moves between the states of the dialogue. Inside there is a subscription model, a secure server architecture and AI integrations ready to be extended with new services and characters.
The client wanted to ship a mobile app with a voice AI character: a person asks a question out loud and an animated hero answers aloud and “lives” on the screen. What was needed was a finished product for iOS and Android with a subscription, payments and an account — not just an integration with an AI model.
We built the whole app: a voice assistant with an animated character, sign-in, subscriptions and payments in one interface. Built on Flutter and Supabase, the architecture lets us add new characters and connect new AI models without rewriting from scratch.
The app brings the voice flow, the animated character, the subscription model and the basic user settings together in one simple interface. The MVP is designed to suit a broad audience while staying ready to scale.
The animated character reacts visually to the stages of the dialogue and makes the conversation feel alive and clear. Subscriptions and the profile give access to plans, account settings and key features of the app. The voice AI assistant takes requests by voice, runs them through an AI model and returns a spoken answer. 
The profile holds all the main settings of the app: managing the account, choosing a character, switching the theme, opening the terms and privacy policy, and contacting support. That keeps the MVP simple and clear, with no extra screens and no overloaded navigation.
The app has a subscription model built in, with a choice of plan, payment, auto-renewal and a payment history. People can manage the subscription easily, and the business has a working monetization model from day one.
The home screen is built around an animated AI character that stays with the user at every stage of the dialogue. The assistant moves between its states — waiting, listening, thinking and answering — which makes the conversation feel more natural than a regular text chat.
Defined the MVP, the key user flows and the monetization logic. Laid the groundwork for scaling the product and connecting new AI capabilities right away.
Created a simple, friendly interface centered on the AI character and the voice interaction. We kept the UX clear for a broad audience.
Built the cross-platform app and the server infrastructure with AI integrations, subscriptions and secure data storage.
Prepared the app for the app stores, finalized the infrastructure and made sure the MVP was ready to launch.
ValeryFounder of AI AssistantThe task was to build more than an AI chat — an intuitive voice assistant with a personality you can see. The team proposed a solution that met the MVP goals while leaving room for further product development and the addition of new AI capabilities.
The result is an MVP of a mobile AI assistant for iOS and Android with a clear voice flow, an animated character, a subscription model and a modern server architecture. The product is a solid foundation for what comes next: connecting new AI services, adding characters and adding features without reworking the whole system.
Voice-led UX Monetization from day one 
A flexible architecture We’ll hop on a 15–30 minute call, go through your idea for free and suggest where to start and how to build it.
