Best Codex Apps

249+ iOS apps curated and reviewed

4.7 avg rating
20 free apps
Updated August 2026

With an average user rating of 4.7★, the codex category is one of the App Store's strongest. Browse all 249+ apps we track, sorted so the most loved ones surface first.

Compare top Codex Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1ChatGPTChatGPTFree4.8★ (9.2M)YesYesAug 2026
2Claude by AnthropicClaude by AnthropicFree4.7★ (226K)NoYesAug 2026
3Grok AIGrok AIFree4.9★ (1.3M)NoYesAug 2026
4Google GeminiGoogle GeminiFree4.7★ (2.1M)NoYesAug 2026
5Codex Relay - Remote Codex AppCodex Relay - Remote Codex AppFree4.3★ (42)NoNoAug 2026
6XXFree4.6★ (11M)YesYesAug 2026
7GitHubGitHubFree4.8★ (35K)NoYesAug 2026
8Kimi - Kimi K3 is LiveKimi - Kimi K3 is LiveFree4.8★ (5K)NoYesAug 2026

Top Picks for Codex

ChatGPT#1

ChatGPT by OpenAI OpCo, LLC

Your everyday AI assistant
Editor's Choice
📊 Productivity
4.8😊(9.2M 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😊(226K 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 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
(2.1M)
free with in-app purchases
5
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
(42)
free
6
X
X
X
Breaking News & Social Media
Free

Connect with a global community in real-time for breaking news, live events, and conversations. Share your thoughts, discover trending topics, and engage with diverse perspectives. Features include an AI assistant, live audio/video, and private messaging.

Real-time breaking news updatesPost thoughts, photos, and videosAI assistant for news summaries
📡 News
(11M)
free with in-app purchases
7
GitHub
GitHub
GitHub
Projects, ideas, & code to go
Free

Manage your code projects, review changes, and collaborate with your team on the go. This app allows you to stay updated with notifications, respond to issues, and browse files and code from anywhere.

Browse notificationsRead, react, and reply to Issues and Pull RequestsReview and merge Pull Requests
🛠️ Developer Tools
(35K)
free with in-app purchases
8
Kimi - Kimi K3 is Live
Kimi - Kimi K3 is Live
Kimi - Kimi K3 is Live
K3,Code,Slides,Agent Swarm
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
(5K)
freemium
9
Codex AI : Remote Codex
Codex AI : Remote Codex
Codex AI : Remote Codex
by Vedat TANONUT
Free

This AI-powered assistant helps you plan, organize, write, and analyze tasks efficiently. It offers features like coding assistance, smart Q&A, project management, and file summarization to streamline your workflow.

AI Coding AssistanceSmart Q&AProject Organization
📊 Productivity
(17)
freemium
10
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
(494K)
free with in-app purchases
11
Swift Playground
Swift Playground
Swift Playground
Learn real coding the fun way
Free

Learn to code and build real apps through interactive puzzles and challenges. Explore Swift and SwiftUI, Apple's powerful programming languages, with guided lessons and hands-on creation. Suitable for beginners of all ages, it offers a unique learning experience on iPad.

Interactive coding puzzlesBuild real apps with SwiftUILearn Swift programming
📚 Education
(1.8K)
free
12
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
(36K)
free with in-app purchases
13
Gemini Notebook
Gemini Notebook
Gemini Notebook
Understand anything
Free

This AI-powered tool transforms complex information from various sources into clear, understandable insights. It allows users to upload documents, websites, and videos, then ask questions and receive summarized answers with inline citations. Users can also generate podcast-style audio discussions for a different learning experience.

Upload PDFs, websites, and videosAI-powered summarizationAsk questions about sources
📊 Productivity
(53K)
free with in-app purchases
14
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
15
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
16
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
(3.5M)
free with in-app purchases
17
Mobile IDE for Codex AI GPT
Mobile IDE for Codex AI GPT
Mobile IDE for Codex AI GPT
Remote Coding Agent & CLI
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
(2)
freemium
18
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
(991)
free with in-app purchases
19
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
(406K)
free with in-app purchases
20
Cursor
Cursor
Cursor
AI coding agent for big ideas
Free

Build, review, and ship software from anywhere using AI agents. Implement changes, fix bugs, and manage projects remotely. Verify work with demos and provide visual feedback to agents.

Launch coding agents from anywhereTrack and manage engineering workReview screenshots and videos of changes
🛠️ Developer Tools
(335)
freemium

FAQ about Codex

What are the best codex apps for iPhone?
ChatGPT tops our codex apps ranking as of August 2026, with a 4.8-star average from 9.2M App Store ratings, and it's free to download.
Yes — 20 of the top codex 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 August 2026.
We track 249+ codex apps on the iOS App Store as of August 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