Self Relay Chat
Voice Chatting
Voice-based Q&A chatbot assistance
Like Sista AI VoiceBot, Self Relay Chat is in the Voice Chatting category. Both are freemium. Worth comparing on the detail page.
We've curated 49 of the best alternatives to Sista AI VoiceBot, ranked by feature overlap, topic similarity, user ratings, and popularity. Self Relay Chat, Zerobot, and Oliver lead the list as the closest matches.
Updated May 18, 2026
The list includes 5 free alternatives and 44 freemium, so whether you're looking for a no-cost replacement or a more capable paid tier, there's an option to compare. Sista AI VoiceBot itself is freemium, which makes freemium alternatives the most natural starting point.
Many of these tools cluster around use cases like Agent, Api, Free + From $10, and Chatbot — the same problem spaces Sista AI VoiceBot addresses. Cross-referencing tools that overlap on multiple topics gives a more reliable signal than category alone, because two products in the same category can still serve very different workflows.
Our ranking weighs eight signals: shared category, topic overlap, feature overlap, name and description text similarity (via PostgreSQL's pg_trgm and tsvector), Bayesian-smoothed user ratings, pricing-model match, popularity, and editorial overrides. Scores are then normalized within each tool's own candidate pool so the top match always represents the strongest available alternative.
Use the table of contents below to jump to free or paid alternatives, or scroll down to compare each option side-by-side with Sista AI VoiceBot.
Ranked by compatibility score
Voice Chatting
Voice-based Q&A chatbot assistance
Like Sista AI VoiceBot, Self Relay Chat is in the Voice Chatting category. Both are freemium. Worth comparing on the detail page.
Voice Chatting
Personalized voice chatbot interactions.
Like Sista AI VoiceBot, Zerobot is in the Voice Chatting category. Both are freemium. Worth comparing on the detail page.
5 free and 44 freemium options.
25 additional candidates
Self Relay Chat ranks as the highest-scoring alternative to Sista AI VoiceBot, based on shared category, topic overlap, feature similarity, and user ratings. Ratings are still being collected for this tool.
Yes — 5 fully free and 44 freemium alternatives are available, including Self Relay Chat, Zerobot, and Oliver.
Self Relay Chat is similarly priced (freemium) and sits in the same category (Voice Chatting). View its detail page to compare features, integrations, and reviews side-by-side.
Top Voice Chatting alternatives include Self Relay Chat, Zerobot, Oliver, and Dan - AI Voice Chat Companion. These tools share the same primary category and have meaningful topic overlap with Sista AI VoiceBot.
Voice Chatting
Chat with AI using your voice.
Like Sista AI VoiceBot, Oliver is in the Voice Chatting category. Both are freemium. Worth comparing on the detail page.
Voice Chatting
Your ultimate real-time AI voice chat companion.
Like Sista AI VoiceBot, Dan - AI Voice Chat Companion is in the Voice Chatting category. Both are freemium. Worth comparing on the detail page.
Voice Chatting
Voice AI, everywhere: effortless integration for any device
Like Sista AI VoiceBot, OpenHome is in the Voice Chatting category. OpenHome is free, while Sista AI VoiceBot is freemium. Worth comparing on the detail page.
Voice Chatting
Open-source conversational AI for everyone
Like Sista AI VoiceBot, SpeechBrain is in the Voice Chatting category. SpeechBrain is free, while Sista AI VoiceBot is freemium. Worth comparing on the detail page.
Voice Chatting
Voice Q&A chatbot
Like Sista AI VoiceBot, SpeaksAI is in the Voice Chatting category. SpeaksAI is free, while Sista AI VoiceBot is freemium. Worth comparing on the detail page.
Voice Chatting
Voice call AI clones of any personality
Like Sista AI VoiceBot, MeslAI is in the Voice Chatting category. MeslAI is free, while Sista AI VoiceBot is freemium. Worth comparing on the detail page.
Voice Chatting
Fast, open-source voice assistant for seamless interaction.
Like Sista AI VoiceBot, Swift AI is in the Voice Chatting category. Swift AI is free, while Sista AI VoiceBot is freemium. Worth comparing on the detail page.
Agents
Managed web-based goal and task system.
AiAgent.app shares 1 topic with Sista AI VoiceBot: Agent. Both are freemium.
To Do Lists
Efficient project management with generated tasks
ToDo.is shares 1 topic with Sista AI VoiceBot: Agent. Both are freemium.
Fraud Detection
The Device-First Fraud Intelligence Platform
SHIELD shares 1 topic with Sista AI VoiceBot: Agent. Both are freemium.
Task Automation
Supercharge productivity with AI tailored to your role.
Clickup shares 1 topic with Sista AI VoiceBot: Agent. Both are freemium.
Ai Development
Rapid AI development with low-code solutions
BotX shares 1 topic with Sista AI VoiceBot: Agent. Both are freemium.
Chatbots
Accelerate Work with AI
PixieBrix shares 1 topic with Sista AI VoiceBot: Agent. Both are freemium.
Customer Support
'AI-powered Business, Work & Study Assistant' + AI Customer Support Chat Widget
ChatHelp.ai shares 1 topic with Sista AI VoiceBot: Agent. Both are freemium.
Chatting
Empower GPTs with domain-specific actions
SimpleGen shares 1 topic with Sista AI VoiceBot: Agent. Both are freemium.
Chatbots
Predictable LLM Agent For Everyone
ReByte shares 1 topic with Sista AI VoiceBot: Agent. Both are freemium.
User Experience Analysis
Find Your Website's Hidden Gems with AI-Powered UXsniff
UXSniff shares 1 topic with Sista AI VoiceBot: Agent. Both are freemium.
Task Automation
Supercharge macOS productivity with AI agents
Vidix shares 1 topic with Sista AI VoiceBot: Agent. Both are freemium.
Browser Automation
AI assistant for smarter browsing and web automation.
Starizon AI shares 1 topic with Sista AI VoiceBot: Agent. Both are freemium.
Agent Building
Create & Deploy AI Agents for Phone, Chat & Discord
echowin2 shares 1 topic with Sista AI VoiceBot: Agent. Both are freemium.
Apis
One API, 500+ AI models at your fingertips.
CometAPI shares 1 topic with Sista AI VoiceBot: Agent. Both are freemium.
Agents
Execute innovation workflows faster with domain-specific AI agents.
Patsnap Eureka shares 1 topic with Sista AI VoiceBot: Agent. Both are freemium.
43 more free/freemium alternatives listed below. Browse all Sista AI VoiceBot alternatives ↓
49 free or freemium alternatives to Sista AI VoiceBot on /tools/sista-ai-voicebot/alternatives.
PseudoEditor shares 1 topic with Sista AI VoiceBot: Free + From $10. Both are freemium.
Neither Sista AI VoiceBot nor Self Relay Chat has user ratings yet — be the first to review either tool to help future visitors compare them.
