Best Openai O1 Apps

237+ iOS apps curated and reviewed

4.7 avg rating
20 free apps
Updated April 2026

From beginner-friendly picks to power-user tools, our openai o1 list covers 237+ iPhone apps updated through April 2026. Compare ratings, prices, and screenshots in one place.

Top Picks for Openai O1

ChatOn AI - Chat Bot Assistant#1

ChatOn AI - Chat Bot Assistant by AIBY Incorporated

One Chatbot–Multiple Al Tools
Editor's Choice
📊 Productivity
4.7😊(275K ratings)
FreeAdsIn-App Purchases
#9in Productivity
ChatOn AI - Chat Bot Assistant screenshot 1
ChatOn AI - Chat Bot Assistant screenshot 2
ChatOn AI - Chat Bot Assistant screenshot 3
ChatOn AI - Chat Bot Assistant screenshot 4
ChatOn AI - Chat Bot Assistant screenshot 5
ChatOn AI - Chat Bot Assistant screenshot 6

Get instant assistance and guidance with ChatOn - AI Chat Bot Assistant! Enhance your productivity and streamline tasks with our advanced AI technology. Sign up now for a smarter way to communicate and get things done.

What We Love

  • 🚀 Excellent AI assistant
  • 👍 User-friendly interface
  • 💡 Versatile features
  • 🚀 Fast and efficient

Room to Improve

  • 🐛 Occasional errors and timeouts
  • 💰 Expensive subscription
  • 🔒 Limited free usage
AI Central: o1 Preview o1 Mini#2

AI Central: o1 Preview o1 Mini by MUHAMMED ARAFA ARAFAS BILISIM VE YAZILIM SISTEMLERI

Meta AI, OpenAI o1, Gemini ai
Strong Contender
📊 Productivity
4.5😊(311 ratings)
FreeIn-App Purchases
AI Central: o1 Preview o1 Mini screenshot 1
AI Central: o1 Preview o1 Mini screenshot 2
AI Central: o1 Preview o1 Mini screenshot 3
AI Central: o1 Preview o1 Mini screenshot 4
AI Central: o1 Preview o1 Mini screenshot 5

Discover the ultimate showdown between AI models on AI Central! Witness GPT-4o and Llama 3 face off in diverse challenges and vote for your favorite. Join now to experience the cutting-edge of AI technology!

What We Love

  • 🚀 Fast and responsive performance
  • 🧠 Sophisticated and accurate AI responses
  • 💡 Comprehensive AI tool integration
  • 👍 User-friendly interface

Room to Improve

  • 💰 Expensive subscription pricing
  • 🚫 Paid service vs free alternatives
  • 🐛 App functionality issues/crashes
ChatGPT#3

ChatGPT by OpenAI OpCo, LLC

The official app by OpenAI
Worth Considering
📊 Productivity
4.8😊(929K ratings)
FreeAdsIn-App Purchases
#1in Productivity
ChatGPT screenshot 1
ChatGPT screenshot 2
ChatGPT screenshot 3
ChatGPT screenshot 4
ChatGPT screenshot 5
ChatGPT screenshot 6

Discover the ultimate AI-powered chat app for iOS with voice mode, creative inspiration, tailored advice, learning opportunities, professional input, and instant answers. Join millions of users and download now for free!

What We Love

  • 🚀 Powerful and versatile AI assistant
  • 👍 Intuitive and user-friendly interface
  • 🤖 Impressive conversational abilities
  • 💡 Convenient mobile access to ChatGPT

Room to Improve

  • 🐛 Occasional inaccuracies or inconsistencies in responses
  • 🔖 Limited to pre-2021 data, lacking real-time updates
  • 🔒 Concerns about privacy and data usage

More Openai O1 apps to explore

4
Grok - AI Assistant
Grok - AI Assistant
Grok - AI Assistant
The real-time AI assistant
Free
📊 Productivity
(82K)
5
Chat with o1 - Chatbot
Chat with o1 - Chatbot
Chat with o1 - Chatbot
Powered by OpenAI's o1 series
Free

Meet an intelligent AI chatbot powered by OpenAI's o1 series, trained with reinforcement learning for advanced reasoning. Break through traditional limits with PhD-level precision and experience an assistant that excels in scientific and technical challenges. Download for free today!

📊 Productivity
(8)
6
Perplexity - AI Search & Chat
Perplexity - AI Search & Chat
Perplexity - AI Search & Chat
Ask. Research. Trusted Answers
Free

Discover a smarter way to access credible and up-to-date answers with AI-powered search and discovery. Features include guided AI search, voice or text input, threaded conversations, and a community-driven learning experience. Start your journey to better knowledge and understanding by downloading the app now.

📊 Productivity
(64K)
7
O-KAM Pro
O-KAM Pro
O-KAM Pro
by Shenzhen VeePai IoT Intelligent Technology LLC
Free

Monitor your home anytime, anywhere with remote video surveillance on your mobile device. Stay connected with real-time video, cloud storage playback, alarm alerts, two-way voice intercom, and more for effortless home monitoring. Download now for easy and convenient home security management.

🛠️ Developer Tools
(8.3K)
8
You.com - Enterprise grade AI
You.com - Enterprise grade AI
You.com - Enterprise grade AI
Deep research, agents, 20+LLMs
Free

Experience truly personalized conversations with AI chatbots powered by GPT-4o, Gemini, and Llama 3. Get tailored responses and intelligent interactions like never before. Start chatting now for a glimpse into the future of AI communication.

📊 Productivity
(4.8K)
9
AI Chat Assistant – ChatNow
AI Chat Assistant – ChatNow
AI Chat Assistant – ChatNow
Built on Gemini, GPT, Grok 4
Free

Get instant help with everyday tasks using our AI-powered chat assistant. Streamline your life with smart reminders, recommendations, and more. Try it now for a seamless experience!

📊 Productivity
(133K)
10
DeepSeek - AI Assistant
DeepSeek - AI Assistant
DeepSeek - AI Assistant
Intelligent AI Assistant
Free

In a couple of sentences, the essence of the application and its functionality can be conveyed as follows: Experience an intelligent AI assistant that offers seamless interaction and comprehensive features to answer your questions and enhance your life efficiently. Powered by a state-of-the-art model, this free AI assistant leads global standards and is designed to provide faster speeds and enhanced capabilities.

📊 Productivity
(11K)
11
Sider: AI GPT Deep Chat
Sider: AI GPT Deep Chat
Sider: AI GPT Deep Chat
Top AI Models All in One.
Free

Sider is an advanced AI chatbot application designed to streamline customer interactions and provide instant support. Experience superior customer service with intelligent responses and quick problem-solving capabilities. Try Sider today for efficient and effective communication.

📊 Productivity
(4.1K)
12
AI Chatbot - Ask AI Anything‎
AI Chatbot - Ask AI Anything‎
AI Chatbot - Ask AI Anything‎
Built on OpenAI ChatGPT & GPT5
Free
📊 Productivity
(109)
13
Chat AI: Ask Agent Anything
Chat AI: Ask Agent Anything
Chat AI: Ask Agent Anything
Chatbot & Search Assistant
Free

A user-friendly messaging app allowing real-time communication through text, voice, and video. Stay connected with friends, share media, and create group chats effortlessly. Start chatting now to experience seamless communication at your fingertips.

📊 Productivity
(323K)
14
Chat AI - Ask Anything
Chat AI - Ask Anything
Chat AI - Ask Anything
AI Chatbot & Essay Writer Bot
Free

Get instant answers to all your questions with our AI Chatbot — ask anything and receive quick, accurate responses. Connect with our Chat AI now!

📊 Productivity
(126K)
15
Use for AI Chatbot
Use for AI Chatbot
Use for AI Chatbot
Powered by OpenAI & ChatGPT
Free

An AI chatbot application powered by OpenAI that offers advanced conversational capabilities for seamless interactions. Enhance customer service, streamline communication, and experience efficient automated responses with this cutting-edge chatbot technology. Try it now for a smarter, more engaging chat experience!

💼 Business
(1.9K)
16
Dola - 智能聊天答题高效学习办公助手
Dola - 智能聊天答题高效学习办公助手
Dola - 智能聊天答题高效学习办公助手
全新模型 无痕浏览 守护隐私 便捷交互
Free
📊 Productivity
(1)
17
Monica AI: Ultimate AI Assist
Monica AI: Ultimate AI Assist
Monica AI: Ultimate AI Assist
Chat, Search, Write, Translate
Free

Meet Monica, your all-in-one AI pal powered by cutting-edge AI models like GPT-4. From AI search to voice translation, web summaries, and AI chat, Monica is your creative sidekick for various tasks. Experience AI magic with Monica at https://monica.im – Let Monica redefine your digital world!

📊 Productivity
(6.4K)
18
Openchat: AI Chatbot Copilot
Openchat: AI Chatbot Copilot
Openchat: AI Chatbot Copilot
Image, Voice, Text Generation
Free

Get quick responses to your queries with OpenChat - an AI-powered chatbot! Interact seamlessly and get instant answers to your questions anytime, anywhere.

📊 Productivity
(3.9K)
19
Chat AI 5: AI Agent & Video
Chat AI 5: AI Agent & Video
Chat AI 5: AI Agent & Video
One Chatbot All Top AI Models
Free

Streamline your productivity and creativity with an AI-powered chatbot assistant that provides access to advanced language models, comprehensive web search, AI-generated artwork, video summaries, and a suite of intelligent tools - all in one convenient platform. Download now and experience the power of top-tier AI technology.

📊 Productivity
(581)
20
Chat Unlimited & Ask Brutus AI
Chat Unlimited & Ask Brutus AI
Chat Unlimited & Ask Brutus AI
Powered by ChatGPT & GPT API
Free

Connect with friends and family through instant messaging, video calls, and group chats using this versatile communication app. Stay connected anytime, anywhere. Download now to experience seamless communication!

📚 Education
(542)