# Kai - AI — Fast, Simple, Open-Source > Fast, open-source AI chat companion with multiple model options and privacy focus. (iPhone/iPad app by Simon Schubert.) - Source: https://appshunter.io/ios/app/kai-ai/id6758148023 (this page in markdown: same URL + `.md`) - Developer: [Simon Schubert](https://appshunter.io/developer/1219649975) - Category: Productivity, Education - Price: Free - Rating: 5.00/5 from 3 App Store ratings · 1 written reviews indexed - Age rating: 17+ - Requires: iOS 15.3 · 127 MB - Languages: American English, Afrikaans, Albanian, Amharic, Arabic, Belarusian, Bangla, Bulgarian, Croatian, Czech and 45 more - Released: 2026-01-23 - Data updated: 2026-08-28 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/kai-ai/id6758148023/reviews.md ## What is Kai? Need quick AI answers without the bloat? Kai is your lightning-fast, open-source companion, powered by models like Llama and Google's Gemini. Dive into seamless chats for brainstorming, writing, summarizing, learning, or casual talks – all in a minimalist interface that loads in seconds. Why Kai Stands Out: Blazing Speed: Optimized for instaKai: Fast, Simple Open-Source AI Chat – No Tracking, Just Pure Conversation! Need quick AI answers without the bloat? Kai is your lightning-fast, open-source companion, powered by models like Llama and Google's Gemini. Dive into seamless chats for brainstorming, writing, summarizing, learning, or casual talks – all in a minimalist interface that loads in seconds. Why Kai Stands Out: Blazing Speed: Optimized for instant responses, even on modest devices – no waiting around for cloud lags. Ultimate Simplicity: Clean, intuitive chat design that's easy for anyone to use, with zero unnecessary features. Open Source Freedom: Fully transparent code – check it out, contribute, or customize. No hidden agendas. Model Choice: Switch between Llama, Gemini, and more to fit your needs, exploring AI strengths effortlessly. Natural Multi-Turn Chats: Conversations that remember context for deeper, more productive interactions. Versatile Everyday Help: Tackle quick queries or complex tasks like idea generation and content creation. Privacy First: Internet Required, But No Tracking. Kai runs on secure remote servers for top performance. We send only your inputs for processing – no telemetry, no data storage, no user tracking. Your privacy is built-in.nt responses, even on modest devices – no waiting around for cloud lags. Ultimate Simplicity: Clean, intuitive chat design that's easy for anyone to use, with zero unnecessary features. Open Source Freedom: Fully transparent code – check it out, contribute, or customize. No hidden agendas. Model Choice: Switch between Llama, Gemini, and more to fit your needs, exploring AI strengths effortlessly. Natural Multi-Turn Chats: Conversations that remember context for deeper, more productive interactions. Versatile Everyday Help: Tackle quick queries or complex tasks like idea generation and content creation. Privacy First: Internet Required, But No Tracking. Kai runs on secure remote servers for top performance. We send only your inputs for processing – no telemetry, no data storage, no user tracking. Your privacy is built-in. ## Key features - Blazing fast AI responses - Minimalist and intuitive interface - Open-source and transparent code - Choice of AI models (Llama, Gemini) - Context-aware multi-turn conversations - Privacy-focused, no user tracking ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/kai-ai/id6758148023/reviews.md ### 5/5 — Wish most LLM’s were like this. *2026-07-09* By far one of the most helpful and responsive apps. Great job! ## Frequently asked questions about Kai ### What AI models does Kai use? Kai utilizes powerful AI models such as Llama and Google's Gemini, allowing users to switch between them to suit their needs and explore different AI strengths. ### Is Kai free to use? Yes, Kai is completely free to download and use, offering its full range of AI chat features without any cost to the user. ### Does Kai have ads? No, Kai is ad-free. The application is designed for a clean and uninterrupted user experience, focusing solely on providing AI assistance. ### What devices is Kai available on? Kai is available on iPhone, iPad, and iPod devices, making it accessible to a wide range of Apple users. ### How often is Kai updated? Kai was last updated on May 25, 2026, with version 2.6.2. This indicates a commitment to ongoing development and improvements. ### What is the age rating for Kai? Kai has an age rating of 17+, suggesting mature content or themes may be present in its AI interactions or underlying technology. ### Does Kai track user data? No, Kai prioritizes user privacy. While an internet connection is required for processing, the app states it does not store user data or track users. ### Can Kai remember conversation context? Yes, Kai supports natural multi-turn chats, meaning conversations remember context for deeper and more productive interactions. ## Version history (last 5 releases) ### 3.0.0 — 2026-08-08 Major upgrade on capabilities ### 2.6.2 — 2026-05-25 Add local gemma4 model service ### 2.3.3 — 2026-04-27 Improve UI/UX Add model infos Fix bugs ### 2.2.0 — 2026-04-21 Improve UI/UX ### 2.1.4 — 2026-04-12 Add fast and expert mode toggles for free services Enrich model catalog with arena scores, release dates, and context windows Support multi-file upload for attachments ## More apps by Simon Schubert - [Linux Command Library](https://appshunter.io/ios/app/linux-command-library/id1219649976) - [2 Player Quiz](https://appshunter.io/ios/app/2-player-quiz/id1281347338) - [Darwin Command Library](https://appshunter.io/ios/app/darwin-command-library/id1478951256) - [Braincup](https://appshunter.io/ios/app/braincup/id1483376887) - [Orc Genocide](https://appshunter.io/ios/app/orc-genocide/id6753610161) All apps by Simon Schubert: https://appshunter.io/developer/1219649975 ## Related topics [open source ai](https://appshunter.io/ios/topics/open-source-ai) · [veteran ai](https://appshunter.io/ios/topics/veteran-ai) · [eat simple ai](https://appshunter.io/ios/topics/eat-simple-ai) · [sourcing ai](https://appshunter.io/ios/topics/sourcing-ai) · [moonshot ai](https://appshunter.io/ios/topics/moonshot-ai) · [cimon ai](https://appshunter.io/ios/topics/cimon-ai) · [napkin ai](https://appshunter.io/ios/topics/napkin-ai) · [layla ai](https://appshunter.io/ios/topics/layla-ai) · [lockedin ai](https://appshunter.io/ios/topics/lockedin-ai) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-28.*