Best Codex AI Apps

243+ iOS apps curated and reviewed

4.7 avg rating
20 free apps
Updated May 2026

Finding the right codex ai app can be overwhelming with so many options. We've analyzed 243+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.

Top Picks for Codex AI

ChatGPT#1

ChatGPT by OpenAI OpCo, LLC

The official app by OpenAI
Editor's Choice
📊 Productivity
4.8😊(7.8M 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
Claude by Anthropic#2

Claude by Anthropic by Anthropic PBC

AI assistant for life and work
Strong Contender
📊 Productivity
4.7😊(164K ratings)
FreeAdsIn-App Purchases
#2in Productivity
Claude by Anthropic screenshot 1
Claude by Anthropic screenshot 2
Claude by Anthropic screenshot 3
Claude by Anthropic screenshot 4
Claude by Anthropic screenshot 5
Claude by Anthropic screenshot 6

Get instant help on various tasks with Claude, an AI assistant that offers intelligence at your fingertips. Collaborate, brainstorm, or get assistance with daily tasks while on the go. Trust Claude to be your reliable partner for all your needs. To learn more, visit the website.

What We Love

  • 🚀 Powerful and versatile AI assistant
  • 👍 Intuitive and easy to use interface
  • 💡 Innovative features like 'Projects'
  • 🤖 Intelligent and thoughtful responses

Room to Improve

  • 🔒 Concerns about privacy and data usage
  • 🚫 Limitations on free usage and throttling
  • 🐛 Occasional bugs and crashes
Grok - AI Chat & Video#3

Grok - AI Chat & Video by X Corp.

The real-time AI assistant
Worth Considering
📊 Productivity
4.9😊(1.2M ratings)
FreeIn-App Purchases
#3in Productivity
Grok - AI Chat & Video screenshot 1
Grok - AI Chat & Video screenshot 2
Grok - AI Chat & Video screenshot 3
Grok - AI Chat & Video screenshot 4
Grok - AI Chat & Video screenshot 5
Grok - AI Chat & Video screenshot 6

What We Love

  • 🚀 Fast and efficient
  • 🔒 Unbiased and ethical
  • 👍 Clean and intuitive UI
  • 🤖 Powerful AI capabilities

Room to Improve

  • 🐛 Occasional errors in responses
  • 🔍 Needs more robust search/history features
  • 🔌 Requires X account for full functionality

More Codex AI apps to explore

4
Mobile IDE for Codex AI GPT
Mobile IDE for Codex AI GPT
Mobile IDE for Codex AI GPT
Remote Coding From Anywhere
Free
🛠️ Developer Tools
(0)
5
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
(476K)
6
Google Gemini
Google Gemini
Google Gemini
Your AI assistant from Google
Free

Google Gemini is your AI assistant for boosting creativity and productivity. With features like brainstorming, connecting with Google apps, studying smarter, trip planning, AI-generated imagery, and more, Gemini Advanced offers even more capabilities with a 1-month free trial. Discover the power of Google's next-gen AI at g.co/gemini/iosrequirements.

📊 Productivity
(1.8M)
7
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)
8
Microsoft Copilot
Microsoft Copilot
Microsoft Copilot
Ask AI: Chat & Voice Assistant
Free

Enhance productivity and creativity with an AI assistant that helps you find information, create visuals from text, and optimize tasks with personalized responses. Experience the future of AI interaction and elevate your workflow with the ultimate AI companion - try it free for 1 month! Download now for a smarter, more efficient way to work and create.

📊 Productivity
(396K)
9
Manus - AI Agent & Automation
Manus - AI Agent & Automation
Manus - AI Agent & Automation
Web Dev, Slides, research
Free

Manus AI is a versatile AI assistant that can handle a wide range of tasks, freeing you up to focus on what's important. It seamlessly bridges your ideas with practical outcomes, ensuring efficient and effective results in your work and personal life.

📊 Productivity
(3.9K)
10
Claude Code & Codex Mobile IDE
Claude Code & Codex Mobile IDE
Claude Code & Codex Mobile IDE
Vibe Coding Anywhere - Vicoa
Free

This application allows developers to seamlessly continue coding sessions across multiple devices, staying connected to their AI agent and receiving instant alerts when input is needed. It enables flexible work, keeping users in control and their workflow uninterrupted, whether they're at their desk or on the go.

🛠️ Developer Tools
(24)
11
Canva: AI Video & Photo Editor
Canva: AI Video & Photo Editor
Canva: AI Video & Photo Editor
Background Remover, Logo Maker
Free

Create stunning designs with ease using this innovative application. From social media graphics to presentations, this tool offers a user-friendly interface and a wide range of design elements to bring your vision to life. Start designing today!

📷 Photo & Video
(3.4M)
12
Happy: Codex & Claude Code App
Happy: Codex & Claude Code App
Happy: Codex & Claude Code App
Codex & Claude Code on the go
Free

Take your Claude Code sessions on the go with this secure mobile companion app, which connects to your existing Claude Code setup and allows you to continue working seamlessly between desktop and mobile devices. With end-to-end encryption and zero-knowledge architecture, you can monitor long-running tasks, access conversation history, and work from anywhere with complete privacy and security.

🛠️ Developer Tools
(684)
13
Replit: Vibe Code with AI Fast
Replit: Vibe Code with AI Fast
Replit: Vibe Code with AI Fast
Idea to app, fast
Free

Code projects effortlessly from anywhere with Replit - the ultimate platform supporting hundreds of languages and frameworks. Collaborate in real-time, deploy instantly, clone projects, set up custom domains, and more. Whether you're a beginner or an expert, Replit is your go-to for coding projects on the go!

🛠️ Developer Tools
(18K)
14
PromptCodex - AI Library
PromptCodex - AI Library
PromptCodex - AI Library
by Life Utility Apps LLC
Free
📊 Productivity
(0)
15
Codex Relay - Remote Codex App
Codex Relay - Remote Codex App
Codex Relay - Remote Codex App
Codex on your phone
Free
🛠️ Developer Tools
(0)
16
Kimi - Kimi K2.6 is Live
Kimi - Kimi K2.6 is Live
Kimi - Kimi K2.6 is Live
K2.5·Visual·Agent·Code·Office
Free

An AI assistant with exceptional memory that can answer questions, summarize documents quickly, organize information, inspire creativity, and assist in various tasks like reading, interpreting, and programming. Ideal for academics, internet professionals, programmers, media creators, and legal professionals. Discover more and boost your productivity with this versatile assistant!

📊 Productivity
(4.6K)
17
AI+ Chat & Al Video Generator
AI+ Chat & Al Video Generator
AI+ Chat & Al Video Generator
Chatbot Homework Helper ChatAI
Free

AI Text Essay Writer is a revolutionary app that uses advanced AI technology to help you craft well-written essays effortlessly. With its user-friendly interface and powerful writing tools, achieving academic success has never been easier. Try it now and experience the future of writing!

📊 Productivity
(19K)
18
AI Courses - AI Mastery
AI Courses - AI Mastery
AI Courses - AI Mastery
Master AI in 15 Min a Day.
Free
📚 Education
(14)
19
Chatbot AI Assistant - Genie
Chatbot AI Assistant - Genie
Chatbot AI Assistant - Genie
AI Chatbot & Image Generator
Free

Experience personalized and intelligent conversations with Chatbot 4o AI Chat - Genie. ChatGPT-powered, it offers advanced AI capabilities for engaging and informative interactions. Start chatting now to unlock a world of tailored responses and assistance.

📊 Productivity
(28K)
20
Kling AI: AI Image&Video Maker
Kling AI: AI Image&Video Maker
Kling AI: AI Image&Video Maker
SPARK YOUR IMAGINATION
Free
🎨 Graphics & Design
(22K)

Related searches