| What it does | Your Personal AI Assistant that answers calls, sets reminders, and manages business on WhatsApp
| Free AI chat with open models, no account or sign-up required
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| Stage | Not given
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| Founded | Not given
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| Based in | IN
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| Pricing model | Freemium
| Free
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| Pricing | Basic Plan: $1.99/month or $13.99/year (with 7-day free trial), Silver Plan: $3.99/month or $27.99/year (with 7-day free trial), Gold Plan: $6.99/month or $41.99/year (with 7-day free trial)
| Free with 10 prompts per day. UsingOpen Studio desktop app is $19 USD one-time purchase, or ¥99 CNY in mainland China.
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| Key features | - AI Call Assistant: answers incoming phone calls professionally, takes notes, and sends call summaries
- Make outgoing calls on your behalf
- Smart Reminders: one-time and recurring reminders with customizable notification types
- Call Alerts: critical reminders with automatic phone call if unread within 60 seconds
- Document Vault: upload and organize documents with automatic expiry date tracking
- Task Manager: create named task lists, assign tasks to team members, track deadlines
- Smart Notes: capture notes with AI search, auto-tagging, and voice-to-text
- Calendar Sync: integrate Google and Outlook calendars, create and manage events from WhatsApp
- 100+ language support with automatic language detection and voice recognition
| - Access to 20+ open-weight AI models including DeepSeek, Qwen, GLM, Gemma, GPT-OSS, Kimi K3 and MiniMax M3
- No account required, no sign-up, no email or password needed
- 10 free prompts per day, reset at midnight UTC
- Chat history saved locally on your device, never sent to servers
- Streaming responses with visible reasoning for thinking models
- Compare two models side by side in the same conversation
- Live model availability status and real-time capacity information
- Responsive design, installable as standalone mobile app
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| What makes it different | - Answers and makes phone calls, unlike text-only chatbots like ChatGPT or Claude
- All features work on WhatsApp without requiring a separate app installation
- Proactive business assistant that takes real-world actions, not just a chatbot
- Enterprise-grade security with end-to-end encryption, GDPR compliance, and no data selling
- Reminders escalate to automatic phone calls if not read within 60 seconds
| - Complete privacy - chat history stays only on your device and is never sent to servers
- Model picker with real-time availability, not a single locked-in assistant
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| Free plan | Not given
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| Open source | Not given
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| Platforms | Not given
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| Public API | Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 13 ● no change since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 0 | 1 |
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| Citation Flow (Majestic) | 14 | 17 |
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| Referring domains (Majestic) | 11 | 5 |
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UsingOpen