Best Openai Codex Apps

243+ iOS apps curated and reviewed

4.7 avg rating
20 free apps
Updated June 2026

Finding the right openai codex 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 Openai Codex Apps (June 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1ChatGPTChatGPTFree4.8★ (8.7M)YesYesJul 2026
2Mobile IDE for Codex AI GPTMobile IDE for Codex AI GPTFreeNoYesJul 2026
3Claude by AnthropicClaude by AnthropicFree4.7★ (203K)NoYesJul 2026
4Google GeminiGoogle GeminiFree4.7★ (2M)YesYesJul 2026
5Happy: Codex & Claude Code AppHappy: Codex & Claude Code AppFree4.9★ (967)NoYesJul 2026
6Perplexity - AI Search & ChatPerplexity - AI Search & ChatFree4.8★ (487K)NoYesJul 2026
7Grok AIGrok AIFree4.9★ (1.3M)NoYesJul 2026
8Manus AI (마누스) - 범용 AI 에이전트Manus AI (마누스) - 범용 AI 에이전트Free4.7★ (35K)NoYesJul 2026

Top Picks for Openai Codex

ChatGPT#1

ChatGPT by OpenAI OpCo, LLC

The official app by OpenAI
Editor's Choice
📊 Productivity
4.8😊(8.7M 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
Mobile IDE for Codex AI GPT#2

Mobile IDE for Codex AI GPT by Uladzsislau Luchkouski

Remote Coding From Anywhere
Strong Contender
🛠️ Developer Tools
0.0(0 ratings)
FreeIn-App Purchases
#90in Developer Tools
Mobile IDE for Codex AI GPT screenshot 1
Mobile IDE for Codex AI GPT screenshot 2
Mobile IDE for Codex AI GPT screenshot 3
Mobile IDE for Codex AI GPT screenshot 4
Mobile IDE for Codex AI GPT screenshot 5

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.

Claude by Anthropic#3

Claude by Anthropic by Anthropic PBC

당신과 함께 생각하는 AI
Worth Considering
📊 Productivity
4.7😊(203K 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

More Openai Codex apps to explore

4
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
5
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
6
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
7
Grok AI
Grok AI
Grok AI
AI chat & video generation
Free

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.

AI-powered Q&A and web researchAI image and video generationVoice mode with live camera
📊 Productivity
(1.3M)
free with in-app purchases
8
Manus AI (마누스) - 범용 AI 에이전트
Manus AI (마누스) - 범용 AI 에이전트
Manus AI (마누스) - 범용 AI 에이전트
PPT·데이터 분석·리서치를 AI가 자동 완성
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
9
Canva: AI Video & Photo Editor
Canva: AI Video & Photo Editor
Canva: AI Video & Photo Editor
Background Remover, Logo Maker
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
(3.4M)
free with in-app purchases
10
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
11
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
12
Omnara: Claude & Codex Mobile
Omnara: Claude & Codex Mobile
Omnara: Claude & Codex Mobile
Claude Code & Codex on the go
Free

Control your AI coding agents from your phone. Monitor, steer, and approve live AI coding sessions in real time, anywhere. Supports Claude Code and Codex, with features like voice coding and live localhost previews.

Mobile control for AI coding agentsClaude Code & Codex supportSeamless cloud sync & local handoff
🛠️ Developer Tools
(20)
free with in-app purchases
13
Google Maps
Google Maps
Google Maps
Places, navigation & traffic
Free

Navigate your world with real-time traffic, turn-by-turn directions for driving, walking, cycling, and public transport. Discover millions of businesses and places with photos and reviews. Plan trips with Street View, Immersive View, and offline maps.

Real-time GPS navigationLive traffic dataPublic transport updates
🗺️ Navigation
(7.3M)
free with in-app purchases
14
Openchat: AI Chatbot Copilot
Openchat: AI Chatbot Copilot
Openchat: AI Chatbot Copilot
Image, Voice, Text Generation
Free

This AI assistant offers personalized text and voice interactions, helping with tasks like drafting emails, summarizing articles, and brainstorming creative ideas. It supports multilingual communication and includes an AI art generator and interactive games. Users can customize responses and focus on privacy.

Advanced AI AssistantPersonalized ResponsesSmart Task Automation
📊 Productivity
(3.9K)
free with in-app purchases
15
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
16
WhatsApp Messenger
WhatsApp Messenger
WhatsApp Messenger
Simple. Reliable. Private.
Free

Connect with friends and family globally through private messaging and high-quality calls. Share moments, documents, and stay in touch across devices, even on slow connections. Your conversations are secured with end-to-end encryption.

End-to-end encrypted messagingHigh-quality voice and video callsGroup chats and calls
🌐 Social Networking
(18M)
free with in-app purchases
17
Cloud Bot Hosting - AI Agent
Cloud Bot Hosting - AI Agent
Cloud Bot Hosting - AI Agent
Easy Deploy OpenClaw Assistant
Free
$1.99 | 100% OFF

Effortlessly deploy and manage your personal AI assistant. This app simplifies complex setup, offering instant hosting or guided self-setup options. Interact with your AI assistant across multiple devices and within your favorite apps.

One-tap AI assistant deploymentDedicated private server instancesAutomatic installation and configuration
📊 Productivity
(266)
free with in-app purchases
18
Chatbox - Powerful AI Client
Chatbox - Powerful AI Client
Chatbox - Powerful AI Client
All in One AI Client
Free

This application acts as a universal client, connecting you to leading AI models across various devices. It offers features like code assistance, image generation, and smart file understanding, all while prioritizing local data storage for privacy.

Connect to multiple AI modelsAnalyze documents, images, and codeAI-powered code generation and optimization
🔧 Utilities
(486)
free
19
Chat Smith: AI Chatbot & Agent
Chat Smith: AI Chatbot & Agent
Chat Smith: AI Chatbot & Agent
Study, Writing, Research Agent
Free

This AI assistant offers advanced capabilities for writing, research, and image generation. It leverages multiple powerful AI models to provide deep insights, create content, and simplify tasks. Ideal for students, professionals, and creatives seeking enhanced productivity.

AI Image GeneratorAI Writing AssistantDeep Research with Sources
📊 Productivity
(167K)
free with in-app purchases
20
Monica AI: Ultimate AI Assist
Monica AI: Ultimate AI Assist
Monica AI: Ultimate AI Assist
Chat, Search, Write, Translate
Free

An all-in-one AI assistant for chat, search, writing, translation, and creative image/video generation. It leverages advanced AI models to enhance productivity and creativity across various tasks, from summarizing documents to creating art.

Smart AI Chat with top modelsText-to-image and text-to-video creationIntelligent search and document summarization
📊 Productivity
(6.4K)
free with in-app purchases

FAQ about Openai Codex

What are the best openai codex apps for iPhone?
ChatGPT tops our openai codex apps ranking as of June 2026, with a 4.8-star average from 8.7M App Store ratings, and it's free to download.
Yes — 20 of the top openai codex apps we rank are free to download, including ChatGPT and Mobile IDE for Codex AI GPT.
ChatGPT shows ads and offers in-app purchases, according to its App Store listing as of June 2026.
We track 243+ openai codex apps on the iOS App Store as of June 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.