Best Gpt 4O Apps

242+ iOS apps curated and reviewed

4.6 avg rating
20 free apps
Updated October 2026

The best gpt 4o apps on iPhone average 4.6★ across 242+ titles — we've ranked them by what real users actually keep on their phones. Updated October 2026.

Compare top Gpt 4O Apps (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1AI Chat 4.0: Open Chatbot 4oAI Chat 4.0: Open Chatbot 4oFree4.5★ (2.3K)NoYesOct 2026
2ChatGPTChatGPTFree4.8★ (11M)YesYesOct 2026
3Chatbot AI: AI Chat AssistantChatbot AI: AI Chat AssistantFree4.6★ (6.5K)NoYesOct 2026
4Chat AI - Ask AnythingChat AI - Ask AnythingFree4.8★ (130K)YesYesOct 2026
5Chatly: AI Chatbot & AssistantChatly: AI Chatbot & AssistantFree4.6★ (2.1K)YesYesOct 2026
6AI Chatbot - Ask Me AnythingAI Chatbot - Ask Me AnythingFree4.6★ (16K)YesYesOct 2026
7AI Chatbot & Writer: Smart AIAI Chatbot & Writer: Smart AIFree4.9★ (36)NoYesJul 2026
8ChatPat 4o - AI Chat AssistantChatPat 4o - AI Chat AssistantFree—NoYesSep 2026

Top Picks for Gpt 4O

AI Chat 4.0: Open Chatbot 4o#1

AI Chat 4.0: Open Chatbot 4o by Liquid Apps Kft.

Image, Photo & Text Generator
Editor's Choice
📊 Productivity
4.5😞(2.3K ratings)
FreeIn-App Purchases
AI Chat 4.0: Open Chatbot 4o screenshot 1
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AI Chat 4.0: Open Chatbot 4o screenshot 3
AI Chat 4.0: Open Chatbot 4o screenshot 4
AI Chat 4.0: Open Chatbot 4o screenshot 5

This app offers a versatile AI assistant powered by advanced models like GPT-5.4 and Gemini 3.1 Pro. It excels at generating text, images, translations, and personalized plans for travel, fitness, and meals. Seamlessly switch between models for optimal results in everyday tasks, creativity, and learning.

What We Love

  • 🚀 Awesome tool
  • 💡 The best AI app I ever used
  • 👍 Very useful in many ways
  • 👍 This is the best!

Room to Improve

  • 🐛 Do not purchase this app!
  • 🐛 Not worth it!
  • 🐛 Lila
  • 🐛 Hard to use
  • 🐛 Disappointed
  • 🐛 Asks me if I want to upgrade every question
  • 🐛 Very disappointed.
  • 🐛 Misleading and fraud
  • 🐛 Needs work
  • 🐛 No good for free plan
  • 🐛 Описание приложения.
  • 🐛 A very poor app
  • 🐛 I don't like that the particular one doesn't have the voice.
ChatGPT#2

ChatGPT by OpenAI OpCo, LLC

Your everyday AI assistant
Strong Contender
📊 Productivity
4.8😊(11M ratings)
FreeAdsIn-App Purchases
#1in Productivity
ChatGPT screenshot 1
ChatGPT screenshot 2
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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
  • 🧠 Vast knowledge base on diverse topics
  • 🔍 Helpful for research, writing, and problem-solving
  • 🤝 Feels like an intelligent companion

Room to Improve

  • 🐛 Occasional inaccuracies or inconsistencies in responses
  • 🔖 Limited to pre-2021 data, lacking real-time updates
  • 🔒 Concerns about privacy and data usage
  • 🔍 Difficulty in navigating and managing conversation history
Chatbot AI: AI Chat Assistant#3

Chatbot AI: AI Chat Assistant by Appsolut Limited

AI Chat & Image Generator
Worth Considering
📊 Productivity
4.6😊(6.5K ratings)
FreeIn-App Purchases
Chatbot AI: AI Chat Assistant screenshot 1
Chatbot AI: AI Chat Assistant screenshot 2
Chatbot AI: AI Chat Assistant screenshot 3
Chatbot AI: AI Chat Assistant screenshot 4
Chatbot AI: AI Chat Assistant screenshot 5
Chatbot AI: AI Chat Assistant screenshot 6

Access multiple advanced AI models, including GPT-5, Claude, Grok, Gemini, and DeepSeek, in a single application. Generate text, create images, get help with tasks, and translate languages with intelligent assistance.

What We Love

  • 👍 Easy to use
  • 🚀 Helpful results
  • 💡 Innovative AI technology
  • 🔒 Secure platform

Room to Improve

  • 🐛 Occasional crashes
  • 💰 Paid features

More Gpt 4O apps to explore

FAQ about Gpt 4O

What are the best gpt 4o apps for iPhone?
AI Chat 4.0: Open Chatbot 4o tops our gpt 4o apps ranking as of October 2026, with a 4.5-star average from 2.3K App Store ratings, and it's free to download.
Yes — 20 of the top gpt 4o apps we rank are free to download, including AI Chat 4.0: Open Chatbot 4o and ChatGPT.
AI Chat 4.0: Open Chatbot 4o has no ads and offers in-app purchases, according to its App Store listing as of October 2026.
We track 242+ gpt 4o apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.

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