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 apps 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.

Compare top Codex AI Apps (May 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1ChatGPTChatGPTFree4.8★ (8.8M)YesYesJul 2026
2Claude by AnthropicClaude by AnthropicFree4.7★ (207K)NoYesJul 2026
3Grok AIGrok AIFree4.9★ (1.3M)NoYesJul 2026
4Mobile IDE for Codex AI GPTMobile IDE for Codex AI GPTFreeNoYesJul 2026
5Perplexity - AI Search & ChatPerplexity - AI Search & ChatFree4.8★ (487K)NoYesJul 2026
6Google GeminiGoogle GeminiFree4.7★ (2M)NoYesJul 2026
7DeepSeek - AI AssistantDeepSeek - AI AssistantFree4.0★ (11K)NoNoJul 2026
8Microsoft CopilotMicrosoft CopilotFree4.8★ (402K)YesYesJul 2026

Top Picks for Codex AI

ChatGPT#1

ChatGPT by OpenAI OpCo, LLC

Your everyday AI assistant
Editor's Choice
📊 Productivity
4.8😊(8.8M ratings)
FreeAdsIn-App Purchases
#1in Productivity
ChatGPT screenshot 1
ChatGPT screenshot 2
ChatGPT screenshot 3
ChatGPT screenshot 4
ChatGPT screenshot 5
ChatGPT screenshot 6

This app provides access to advanced AI capabilities, including text generation, image creation from descriptions, and voice conversations. It offers personalized advice, creative inspiration, and instant answers for various tasks, syncing history across devices.

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😊(207K ratings)
FreeIn-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

This AI assistant helps you write, research, code, and solve complex problems. It can analyze documents, code, and images, and even respond to voice commands. Expand your capabilities and tackle new projects with this intelligent thinking partner.

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#3

Grok AI by X Corp.

AI chat & video generation
Worth Considering
📊 Productivity
4.9😊(1.3M ratings)
FreeIn-App Purchases
#3in Productivity
Grok AI screenshot 1
Grok AI screenshot 2
Grok AI screenshot 3
Grok AI screenshot 4
Grok AI screenshot 5
Grok AI screenshot 6

This AI assistant provides fast, truthful answers and can perform deep web research. It generates striking images and videos from text or voice prompts, and can analyze uploaded content. Engage in conversations with personalized AI companions and access real-time information from X.

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

This app provides a mobile interface for a desktop AI coding environment, allowing developers to edit code, run commands, manage Git, and interact with AI assistants from their iPhone. It enables productive use of idle moments by offering real-time access to projects and a built-in terminal.

Real-time desktop bridgeBuilt-in terminalFull Git support
🛠️ Developer Tools
(0)
freemium
5
Perplexity - AI Search & Chat
Perplexity - AI Search & Chat
Perplexity - AI Search & Chat
Ask. Research. Trusted Answers
Free

Get accurate, source-backed answers to any question with this AI-powered search and chat tool. It leverages top AI models for deep research, drafting emails, and more, syncing across devices. Discover new information and organize your findings in a personal library.

AI-powered search with cited sourcesDeep research and guided explorationConversational follow-up questions
📊 Productivity
(487K)
free with in-app purchases
6
Google Gemini
Google Gemini
Google Gemini
Your AI assistant from Google
Free

This AI assistant helps you brainstorm, create content, and simplify complex topics. It integrates with your Google apps to provide personalized assistance, plan trips, and study smarter. Upgrade for advanced features like video generation and deeper research capabilities.

Unlimited prompting with Gemini 3 FlashLive interaction via camera/screen sharingContent creation (mockups, posters, diagrams)
📊 Productivity
(2M)
free with in-app purchases
7
DeepSeek - AI Assistant
DeepSeek - AI Assistant
DeepSeek - AI Assistant
Intelligent AI Assistant
Free

This AI assistant offers free, intelligent help powered by a cutting-edge model. It provides rapid responses and advanced capabilities to enhance problem-solving and daily efficiency.

Intelligent AI assistantPowered by flagship AI modelFaster response times
📊 Productivity
(11K)
free
8
Microsoft Copilot
Microsoft Copilot
Microsoft Copilot
Ask AI: Chat & Voice Assistant
Free

This AI assistant helps with a wide range of tasks, from creative projects and everyday questions to work-related needs. It offers natural conversation, visual analysis, and learning tools, making tasks easier and faster.

AI Chat & Voice AssistantAI Image GenerationVisual Image Analysis
📊 Productivity
(402K)
free with in-app purchases
9
Manus - AI Agent & Automation
Manus - AI Agent & Automation
Manus - AI Agent & Automation
Web Dev, Slides, research
Free

This AI agent bridges thought and action by autonomously planning, researching, and delivering finished products on a virtual computer. It handles complex tasks like data analysis, slide deck generation, and media creation, working asynchronously in the cloud and notifying you upon completion.

Autonomous task planning and executionAdvanced data analysis and reportingBoardroom-quality slide deck generation
📊 Productivity
(35K)
free with in-app purchases
10
VibeCode: Codex & Claude AI
VibeCode: Codex & Claude AI
VibeCode: Codex & Claude AI
Vibe Coding Anywhere - Vicoa
Free

This app allows developers to seamlessly continue AI coding sessions across multiple devices. Receive instant alerts for AI agent input and stay productive while away from your desk.

Cross-device session continuityInstant AI agent alertsReal-time agent updates
🛠️ Developer Tools
(27)
free with in-app purchases
11
Canva(캔바): 디자인, 사진편집, 동영상 편집
Canva(캔바): 디자인, 사진편집, 동영상 편집
Canva(캔바): 디자인, 사진편집, 동영상 편집
그래픽 디자인 + 로고 메이커
Free

Create stunning graphics, photos, and videos with an all-in-one platform. Generate videos from text prompts using AI, edit photos with background removal, and design presentations, resumes, and social media content. Collaborate in real-time with extensive templates.

AI video generation from textBackground removerPhoto editing suite
📷 Photo & Video
(3.5M)
free with in-app purchases
12
Happy: Codex & Claude Code App
Happy: Codex & Claude Code App
Happy: Codex & Claude Code App
Codex & Claude Code on the go
Free

This app provides a secure mobile interface for AI coding assistants, allowing you to continue sessions and monitor progress from anywhere. It features end-to-end encryption and a zero-knowledge architecture for ultimate privacy. Seamlessly switch between desktop and mobile for uninterrupted AI coding.

Seamless desktop and mobile session continuationPush notifications for AI tasksOffline access to conversation history
🛠️ Developer Tools
(967)
free with in-app purchases
13
Replit: Vibe Code with AI Fast
Replit: Vibe Code with AI Fast
Replit: Vibe Code with AI Fast
Apps, slides, websites, videos
Free

Build and deploy apps, websites, and games directly from your phone. Utilize AI to generate projects from natural language prompts, collaborate in real-time, and host your creations instantly with zero setup. Suitable for both beginners and experienced developers.

Build apps with natural language AIInstant zero-setup hostingReal-time multiplayer collaboration
🛠️ Developer Tools
(20K)
free with in-app purchases
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

Manage your Codex workflow remotely from your phone. Track active threads, send prompts, review output, and respond to requests. Designed for developers to stay connected to their work without being at their desk.

Follow Codex conversations remotelySend prompts and follow-up instructionsRespond to approval and input requests
🛠️ Developer Tools
(36)
free
16
Kimi - Kimi K3 is Live
Kimi - Kimi K3 is Live
Kimi - Kimi K3 is Live
K2.5·Visual·Agent·Code·Office
Free

This AI-powered agent assists with coding, content creation, and office tasks. It can generate presentations, build websites from designs, and perform complex research with autonomous sub-agents for enhanced efficiency. Handle large documents and detailed conversations with its extensive context window.

Autonomous sub-agent creation for parallel efficiencyCode, create, analyze, and build presentationsAutomate workflows with scheduled tasks and long-term memory
📊 Productivity
(4.7K)
freemium
17
AI+ Chat & Al Video Generator
AI+ Chat & Al Video Generator
AI+ Chat & Al Video Generator
Chatbot Homework Helper ChatAI
Free

Access multiple advanced AI models for work, school, and personal tasks. Get help with writing, learning, brainstorming, and even creative projects. Offers AI video generation and text-to-speech capabilities.

Access multiple AI modelsWork assistance (email, copywriting, proposals)School assistance (tutor, essay writer)
📊 Productivity
(19K)
freemium
18
AI Courses: Daily AI Lessons
AI Courses: Daily AI Lessons
AI Courses: Daily AI Lessons
Master AI in 15 Min a Day.
Free

Learn practical AI skills through fun, daily challenges and bite-sized lessons. Build real projects, track your progress, and earn shareable certificates. Integrated AI tools assist you throughout the learning process.

Daily AI challengesBite-sized learning modulesReal project building
📚 Education
(14)
freemium
19
Chatbot AI Assistant - Genie
Chatbot AI Assistant - Genie
Chatbot AI Assistant - Genie
AI Chatbot & Image Generator
Free

This AI-powered assistant helps with work, study, and creative projects. It offers advanced chat, image generation and editing, document analysis, and web search capabilities. Get instant insights and create visuals from text descriptions.

Advanced AI ChatbotAI Image GeneratorAI Image Editor
📊 Productivity
(198K)
free with in-app purchases
20
Kling AI: AI Image&Video Maker
Kling AI: AI Image&Video Maker
Kling AI: AI Image&Video Maker
SPARK YOUR IMAGINATION
Free

Create stunning videos and images using advanced AI models. Transform text or existing images into high-quality video content up to 1080P and 3 minutes long. Generate diverse images from prompts and explore a community for inspiration and collaboration.

AI video generation (Text-to-Video, Image-to-Video)High-quality video up to 1080P and 3 minutesAI image generation (Text-to-Image, Image-to-Image)
🎨 Graphics & Design
(25K)
free with in-app purchases

FAQ about Codex AI

What are the best codex ai apps for iPhone?
ChatGPT tops our codex ai apps ranking as of May 2026, with a 4.8-star average from 8.8M App Store ratings, and it's free to download.
Yes — 20 of the top codex ai apps we rank are free to download, including ChatGPT and Claude by Anthropic.
ChatGPT shows ads and offers in-app purchases, according to its App Store listing as of May 2026.
We track 243+ codex ai apps on the iOS App Store as of May 2026, ranked by rating, recency, and analysis of real user reviews.
This app provides access to advanced AI capabilities, allowing users to generate text, create images from descriptions, and engage in real-time voice conversations. It can offer creative inspiration, tailored advice, personalized learning assistance, and instant answers for a wide range of queries.
Key features include generating original images from text descriptions, engaging in advanced voice conversations, uploading photos to transcribe or get information, and receiving creative inspiration or tailored advice. It also supports personalized learning and professional brainstorming.

Related searches