Best alternatives to Sierra in 2025

Kits AI is an AI voice generation and free AI voice training platform for musicians to use and create AI voices. On Kits.AI you can change your voice using AI artist voices from either our library of licensed or royalty-free voices, create, train, and share your own AI voice from scratch with one-click RVC v2 model training, and upload your existing .pth files to RVC v1 or v2 models for high-quality inference and model sharing..

Voicemaker® is a Text to Speech Converter that allows users to convert written text into human-sounding voices. It provides a wide range of voice profiles and customization options to create audio files..

Voiceflow is a collaborative AI agent building platform for teams to design, develop, and launch chat and voice assistants. It allows teams to work together in designing, testing, and launching chat or voice AI agents at scale..

Access the power of AI from WhatsApp easily, without registration, and for FREE. Luzia (Soy Luzia) helps you in your day to day life with thousands of tasks, whether at work, at school, in your social moments or while pursuing your passions..

Bland AI is an artificial intelligence platform that leverages machine learning to automate tasks and improve efficiency..

Recite the Quran Confidently.

Recite the Quran Confidently.

Personal.ai is a digital extension of any person or brand, offering an AI model that uses their data, facts, and opinions to create a responsive and interactive experience..

Aisera is a generative AI platform for enterprise that helps automate workflows for IT, HR, customer support, sales, and operations at scale..

Introducing Air - the world's first ever AI that can have full on 10-40 minute long phone calls that sound like a real human, with infinite memory, perfect recall, and can autonomously take actions across 5,000 plus applications. It can do the entire job of a full-time agent without having to be trained, managed, or motivated. It just works 24/7/365..

Voice-Swap is an AI-powered tool designed by artists to transform your voice. It allows producers, artists, and writers to use AI technology to make their vocals sound like one of the featured artists. Voice-Swap enables remote collaborations, offers new perspectives, and helps create realistic demos without the need for expensive studio time..

Voicefy is an intuitive platform that converts text into realistic speech, offering multiple languages and voices to maximize accessibility and interactivity of your content..

Ema automates most mundane tasks so human employees can focus on more valuable work. She can take on any role - from customer service, data scientist, to more specialized roles such as a ‘pharmacist’s assistant’. She is simple to use, trusted and accurate..

SpeechLab is an AI-based speech technology platform that empowers publishers and creators to expand their reach globally by overcoming language barriers. It provides customized dubbing, voice-overs, and synthesized speech in multiple languages and dialects..

SoundHound is a voice AI platform that provides conversational intelligence solutions for a voice-enabled world. It offers voice AI interfaces for hardware devices, services, vehicles, mobile apps, and more..

A chess tutor in your pocket. Noctie mimics human play at any level – no more robot-like computers! Fun practice on your own terms: pick the opening you like, learn from instant feedback, get exercises from your mistakes. Your secret weapon to chess learning!.

Dubbing and voice over end-to-end localization at scale in a single platform..

SuperWhisper is an AI-powered voice-to-text application for macOS. It allows users to dictate their speech and have it transcribed into text..

A versatile voice transformation application that helps protect privacy, restore confidence for individuals with vocal cord damage, and enables gender diverse individuals to express themselves freely..

AuthorsVoice.AI is an advanced AI-driven audiobook maker that converts books into high-quality audiobooks using state-of-the-art text-to-speech technology. It offers a wide range of voice options, including various accents, genders, and age groups, to create a personalized and engaging audiobook experience..

An AI keyboard extension for  macOS that allows users to write with their voice in any app..

Momentary is a platform that allows users to easily preserve their treasured moments using voice recordings..

Wiz Write is the AI assistant that transcribes your voice into text faster than typing. Just talk naturally and let Wiz Write write your words. Transform these further with custom AI Actions. Work smarter and boost productivity by speaking instead of typing..

VOYP is a voice-powered app that allows users to make appointments and reservations easily using simple voice commands. It features an intelligent assistant powered by Artificial Intelligence (AI) that can handle various tasks..

VOMO is an AI-powered voice notes app that allows users to convert their voice into organized notes and easily create slide decks, tables, meeting minutes, and more with the help of GPT-4..

VoiceLine is an AI-powered field sales revenue intelligence solution that enables users to document customer interactions, gain actionable insights, and boost sales performance. With VoiceLine, users can easily capture any customer interaction using their voice, saving time and improving efficiency. The AI technology extracts key data points from the recorded interactions and processes them into the CRM system, enhancing data points and improving forecasting. VoiceLine also provides actionable insights based on field data, helping users make informed decisions and spot market trends..

The first AI phone assistant for small businesses, Callin.io offers AI-driven voice assistants to enhance customer service operations..

Rain Voice AI Solutions is at the forefront of voice and conversational AI technology, focusing on helping enterprises and healthcare leaders improve efficiency, safety, and employee satisfaction through the power of voice technology..

Funny Duck is an application and a platform, which can make mobile phone voice assistants more powerful! Through Funny Duck, your mobile phone voice assistant can be used to control computers, smart homes, and DIY IoT devices..

Tailored AI chatbots for Your Website.

Transform Your Audio with AI-Powered Voices.

Infinilearn is an educational platform that offers personalized learning experiences through gamification and AI integration. Users can earn rewards and grants based on their learning achievements, creating a motivating environment for students..

Lancey is an AI copilot specifically designed for product teams to help break down product feedback, generate new insights, and surface experiments. Trained on product data, Lancey aims to make operating faster for product teams by providing categorized insights from product usage and customer feedback..

AiCogni is a ChatGPT-powered voice AI assistant that revolutionizes communication with advanced AI capabilities..

Adola transforms telephony by integrating AI voice assistants with phone systems. Elevate customer interactions with voice capabilities — setup is quick and user-friendly..

Revolutionizing System Administration with Artificial Intelligence.

SoundHound is a voice AI platform that provides conversational intelligence solutions for a voice-enabled world. It offers voice AI interfaces for hardware devices, services, vehicles, mobile apps, and more..

Aria is a speaking AI assistant to help iOS, Android, VisionPro users to access AI GPT features in a hands-free fashion. It helps to save memos, open videos related to conversation, and open map applications with requested routes. Aria can also behave like a tutor or a friend, making it a versatile personal assistant for language practice and visualization of ideas..

OutSKill is a desktop AI voice assistant designed for ultimate productivity and gaming domination. It helps users effortlessly perform multiple tasks at once, seamlessly integrates with various apps and games for a personalized experience, and understands the current needs of the user..

Zenen is a creative AI you can have a conversation with - with voice. No typing. You pick your topic, you ask for help or he will suggest something on his own. He's an extension of YOUR CREATIVE MIND that's always in the flow..

Augmeta | AI Peers is a platform that connects product and engineering managers with AI peers to apply top management learnings and methods, do tasks, have casual conversations, and receive coaching and mentorship..

Spirio AI is a personal assistant bringing the power of LLMs to every one. Unlike chatbots, Spirio AI gets to know YOU, securely acts on YOUR data, and functions as a personal life assistant..

TeleWizard is the world's first AI call center platform designed for small and medium-sized businesses. It offers 24/7 automated support, email integration, advanced AI vision, and personalized interactions at an affordable cost. The platform provides non-stop assistance, natural conversations, tailored responses for returning clients, brand customization, multilingual support, seamless integrations, advanced AI vision for image comprehension, and enhanced security measures..

Instant voice translation for barrier-free meetings.

Call AI clones of any personality.

YANA is an advanced AI-powered companion for personalized caregiving..

With ProseAble, you can chat with an AI who will work with you to correct and improve your conversational skills - so you're prepared for the moments that matter most in the real world..

askInput is a website that allows clients to voice their thoughts and receive responses in seconds. Clients can simply input their thoughts, ask questions, and the website uses voice recognition technology to convert their input into text. The website then provides a prompt response..

Your Fast, Private, and Offline AI Assistant.

A platform designed to enhance speaking and listening comprehension through interactive lessons with an AI tutor..