Self Relay Chat
Voice Chatting
Voice-based Q&A chatbot assistance
Like Zerobot, 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 Zerobot, ranked by feature overlap, topic similarity, user ratings, and popularity. Self Relay Chat, Oliver, and Sista AI VoiceBot 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. Zerobot itself is freemium, which makes freemium alternatives the most natural starting point.
Many of these tools cluster around use cases like Chat, Chatbot, Q&a, and Gpt — the same problem spaces Zerobot 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 Zerobot.
Ranked by compatibility score
Voice Chatting
Voice-based Q&A chatbot assistance
Like Zerobot, Self Relay Chat is in the Voice Chatting category. Both are freemium. Worth comparing on the detail page.
Voice Chatting
Chat with AI using your voice.
Like Zerobot, Oliver 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 Zerobot, 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, Oliver, and Sista AI VoiceBot.
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, Oliver, Sista AI VoiceBot, and Dan - AI Voice Chat Companion. These tools share the same primary category and have meaningful topic overlap with Zerobot.
Voice Chatting
Plug & Play AI Voice Assistant
Like Zerobot, Sista AI VoiceBot 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 Zerobot, Dan - AI Voice Chat Companion is in the Voice Chatting category. Both are freemium. Worth comparing on the detail page.
Voice Chatting
Voice Q&A chatbot
Like Zerobot, SpeaksAI is in the Voice Chatting category. SpeaksAI is free, while Zerobot is freemium. Worth comparing on the detail page.
Voice Chatting
Open-source conversational AI for everyone
Like Zerobot, SpeechBrain is in the Voice Chatting category. SpeechBrain is free, while Zerobot is freemium. Worth comparing on the detail page.
Voice Chatting
Voice call AI clones of any personality
Like Zerobot, MeslAI is in the Voice Chatting category. MeslAI is free, while Zerobot is freemium. Worth comparing on the detail page.
Voice Chatting
Voice AI, everywhere: effortless integration for any device
Like Zerobot, OpenHome is in the Voice Chatting category. OpenHome is free, while Zerobot is freemium. Worth comparing on the detail page.
Voice Chatting
Fast, open-source voice assistant for seamless interaction.
Like Zerobot, Swift AI is in the Voice Chatting category. Swift AI is free, while Zerobot is freemium. Worth comparing on the detail page.
Chatbot Platform
Chatbot client with libraries and multi-bot support.
ChatHub shares 3 topics with Zerobot: Chatbot, Chat, and Free + From $14.99/mo. Both are freemium.
Chatbots
Website chatbot for customer support.
Wonderchat shares 3 topics with Zerobot: Q&a, Chatbot, and Chat. Both are freemium.
Chatgpt
Advice service via WhatsApp.
God In A Box shares 3 topics with Zerobot: Q&a, Chatbot, and Chat. Both are freemium.
Chatgpt For Slack
AI-powered collaboration for smarter work
Slack GPT shares 3 topics with Zerobot: Q&a, Chatbot, and Chat. Both are freemium.
Slack Chatbot
Instant AI answers from Slack conversations.
Truffle shares 3 topics with Zerobot: Q&a, Chatbot, and Chat. Both are freemium.
Chatgpt
Chat with fictional characters from pop culture.
ChatFAI shares 3 topics with Zerobot: Q&a, Chatbot, and Chat. Both are freemium.
Customer Support
Take customer communication to the next level with AI chatbots.
Chatfuel AI shares 3 topics with Zerobot: Chatbot, Chat, and Free + From $14.99/mo. Both are freemium.
Chatgpt
Task assistant chatbot for mobile Q&A.
AI Chat shares 3 topics with Zerobot: Q&a, Chatbot, and Chat. Both are freemium.
Chatgpt
Versatile chatbot for writing and conversation support.
Chat AI shares 3 topics with Zerobot: Q&a, Chatbot, and Chat. Both are freemium.
Chatbots
ChatGPT-powered AI chatbot for 24/7 customer service
Robofy shares 3 topics with Zerobot: Q&a, Chatbot, and Chat. Both are freemium.
Chatgpt
Power seamless communication with AI-driven collaboration
Omnigpt shares 3 topics with Zerobot: Q&a, Chatbot, and Chat. Both are freemium.
Chatting
Interactive chatbot conversations.
Hello AI shares 3 topics with Zerobot: Q&a, Chatbot, and Chat. Both are freemium.
Chatgpt
Automated Q&A and task assistant for mobile chat.
ChatOn shares 3 topics with Zerobot: Q&a, Chatbot, and Chat. Both are freemium.
Chatgpt
iOS conversational agent.
CHAT – AI Chatbot shares 3 topics with Zerobot: Q&a, Chatbot, and Chat. Both are freemium.
Data Analysis
Supercharge spreadsheets with GPT-powered AI tools
Coefficient shares 3 topics with Zerobot: Q&a, Chatbot, and Chat. Both are freemium.
43 more free/freemium alternatives listed below. Browse all Zerobot alternatives ↓
49 free or freemium alternatives to Zerobot on /tools/zerobot/alternatives.
Khoj shares 3 topics with Zerobot: Q&a, Chatbot, and Chat. Both are freemium.
Neither Zerobot nor Self Relay Chat has user ratings yet — be the first to review either tool to help future visitors compare them.
