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Best Chat Gpt 4.0 Apps

248+ iOS apps curated and reviewed

4.5 avg rating
20 free apps
Updated September 2026

ChatGPT is the household name in chat gpt 4.0, but it's far from the only option. We track 248+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Compare top Chat Gpt 4.0 Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1ChatGPTChatGPTFree4.8★ (11M)YesYesSep 2026
2AI Chat 4.0: Open Chatbot 4oAI Chat 4.0: Open Chatbot 4oFree4.5★ (2.2K)NoYesSep 2026
3AI Chat 6.0: GeniusAI Chat 6.0: GeniusFree4.7★ (53K)NoYesSep 2026
4Google ChatGoogle ChatFree4.6★ (306K)NoNoSep 2026
5Latest GPTLatest GPTFree5.0★ (1)NoYesMay 2026
6ChatAI - GPT Chat AppChatAI - GPT Chat AppFree—NoYesAug 2026
7AI Chat - TryChat - Chat BotAI Chat - TryChat - Chat BotFree4.7★ (1.7K)YesYesSep 2026
8Bulk Delete Chats for GPTBulk Delete Chats for GPTFree4.0★ (1)NoYesSep 2026

Top Picks for Chat Gpt 4.0

ChatGPT#1

ChatGPT by OpenAI OpCo, LLC

Your everyday AI assistant
Editor's Choice
📊 Productivity
4.8😊(11M 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
  • 🧠 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
AI Chat 4.0: Open Chatbot 4o#2

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

Image, Photo & Text Generator
Strong Contender
📊 Productivity
4.5😞(2.2K ratings)
FreeIn-App Purchases
AI Chat 4.0: Open Chatbot 4o screenshot 1
AI Chat 4.0: Open Chatbot 4o screenshot 2
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.
AI Chat 6.0: Genius#3

AI Chat 6.0: Genius by Torqued Studios LLC

Built on GPT Plus Images 2.5
Worth Considering
🔧 Utilities
4.7😊(53K ratings)
FreeIn-App Purchases
AI Chat 6.0: Genius screenshot 1
AI Chat 6.0: Genius screenshot 2
AI Chat 6.0: Genius screenshot 3
AI Chat 6.0: Genius screenshot 4
AI Chat 6.0: Genius screenshot 5
AI Chat 6.0: Genius screenshot 6

This AI-powered tool can generate and edit images, write and rewrite text for various purposes, and explain content from photos or documents. It also provides up-to-date web search results and can analyze files like PDFs and spreadsheets.

What We Love

  • 🚀 Wonderful, personal assistant
  • 🚀 Amazing and helpful
  • 👍 Unbelievable and a life-changer
  • 👍 Accurate and fast responses
  • 👍 Versatile and capable on diverse topics
  • 👍 Polite and friendly

Room to Improve

  • 🐛 Inconsistent and buggy responses
  • 🔒 Subscription issues and paywall
  • 🔒 Expensive for some users
  • 🐛 Inability to upload large files
  • 🐛 Incorrect or nonsensical responses

More Chat Gpt 4.0 apps to explore

FAQ about Chat Gpt 4.0

What are the best chat gpt 4.0 apps for iPhone?
ChatGPT tops our chat gpt 4.0 apps ranking as of September 2026, with a 4.8-star average from 11M App Store ratings, and it's free to download.
Yes — 20 of the top chat gpt 4.0 apps we rank are free to download, including ChatGPT and AI Chat 4.0: Open Chatbot 4o.
ChatGPT shows ads and offers in-app purchases, according to its App Store listing as of September 2026.
We track 248+ chat gpt 4.0 apps on the iOS App Store as of September 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.

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chat gpt 4.0 free