Best-of · 7 tools · updated Nov 3, 2026

Best AI Apps for Writing Code with AI on iPhone

When choosing among these apps for coding on iPhone, check that it has an iOS app and whether you need code generation, explanation or debugging, file uploads, or execution and deployment. ChatGPT offers a sandboxed code interpreter and a free tier; Claude supports long documents and codebases in one session; DeepSeek has strong coding performance and a free chat tier with reasoning mode.

  1. 1

    DeepSeek's free AI assistant with strong reasoning and coding capabilities, available on the web and mobile.

    FreeWeb, iOS, Android, API
  2. 2

    Browser-based coding environment with an AI agent that builds, runs and deploys full-stack applications from a written description.

    Free tier · from $20/moWeb, iOS, Android
  3. 3

    OpenAI's AI assistant for questions, writing, coding and research, with a free tier and paid plans for more capable models.

    Free tier · from $8/moWeb, iOS, Android, API
  4. 4

    Anthropic's AI assistant with a long context window, nuanced reasoning and strong performance on writing and analysis.

    Free tier · from $20/moWeb, iOS, Android, API
  5. 5
    Amazon Q DeveloperVerified Nov 4, 2026

    A coding assistant from AWS with IDE and CLI suggestions, chat, and agentic tasks for developers.

    Free tier · from $19/moIDE, Command line, iOS, Android
  6. 6
    v0Verified Nov 3, 2026

    Builds working web apps from written prompts and publishes them as live sites for teams and solo builders.

    Free tier · from $30/moiOS
  7. 7

    Mistral AI's consumer chat product with fast models, web search, image generation and document upload.

    Free tier · from $14.99/moWeb, iOS, Android