Best Chatgpt O1 Apps

202+ iOS apps curated and reviewed

4.4 avg rating
20 free apps
Updated June 2026

Chat with o1 is the household name in chatgpt o1, but it's far from the only option. We track 202+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Compare top Chatgpt O1 Apps (June 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Chat with o1 - ChatbotChat with o1 - ChatbotFree4.5★ (8)NoYesMay 2026
2AI Central: o1 Preview o1 MiniAI Central: o1 Preview o1 MiniFree4.5★ (311)NoYesJul 2026
3ChatGPTChatGPTFree4.8★ (8.9M)YesYesAug 2026
4ChatGPT for IntuneChatGPT for IntuneFree3.6★ (19)YesNoAug 2026
5Chat Unlimited & Ask Brutus AIChat Unlimited & Ask Brutus AIFree4.5★ (1K)NoYesAug 2026
6PolyBuzz: Chat with CharactersPolyBuzz: Chat with CharactersFree4.4★ (452K)NoYesAug 2026
7Chat AI - Ask AnythingChat AI - Ask AnythingFree4.8★ (130K)YesYesAug 2026
8AI Chat Assistant – ChatNowAI Chat Assistant – ChatNowFree4.8★ (135K)YesYesAug 2026

Top Picks for Chatgpt O1

Chat with o1 - Chatbot#1

Chat with o1 - Chatbot by Sozzled LLC

Powered by OpenAI's o1 series
Editor's Choice
📊 Productivity
4.5(8 ratings)
FreeIn-App Purchases
Chat with o1 - Chatbot screenshot 1
Chat with o1 - Chatbot screenshot 2
Chat with o1 - Chatbot screenshot 3
Chat with o1 - Chatbot screenshot 4
Chat with o1 - Chatbot screenshot 5

An AI chatbot powered by OpenAI's o1 series models. It offers advanced reasoning and problem-solving capabilities, particularly in scientific and technical fields. Download this intelligent assistant for free to experience its precise and thoughtful responses.

AI Central: o1 Preview o1 Mini#2

AI Central: o1 Preview o1 Mini by MUHAMMED ARAFA ARAFAS BILISIM VE YAZILIM SISTEMLERI

Meta AI, OpenAI o1, Gemini ai
Strong Contender
📊 Productivity
4.5😊(311 ratings)
FreeIn-App Purchases
AI Central: o1 Preview o1 Mini screenshot 1
AI Central: o1 Preview o1 Mini screenshot 2
AI Central: o1 Preview o1 Mini screenshot 3
AI Central: o1 Preview o1 Mini screenshot 4
AI Central: o1 Preview o1 Mini screenshot 5

This app acts as a personal AI assistant, capable of assisting with a wide range of tasks including writing, language practice, research, and creative endeavors. Get instant answers to your questions and enjoy human-like conversations on any topic.

What We Love

  • 🚀 Fast and responsive performance
  • 🧠 Sophisticated and accurate AI responses
  • 💡 Comprehensive AI tool integration
  • 👍 User-friendly interface

Room to Improve

  • 💰 Expensive subscription pricing
  • 🚫 Paid service vs free alternatives
  • 🐛 App functionality issues/crashes
ChatGPT#3

ChatGPT by OpenAI OpCo, LLC

Your everyday AI assistant
Worth Considering
📊 Productivity
4.8😊(9M 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

More Chatgpt O1 apps to explore

4
ChatGPT for Intune
ChatGPT for Intune
ChatGPT for Intune
Managed ChatGPT for work
Free

Access OpenAI's advanced AI for work or school with this Intune-managed app. Generate images, engage in voice conversations, and process documents hands-free. It helps draft content, summarize information, and brainstorm ideas for faster task completion.

Image generation from descriptionsAdvanced Voice Mode for conversationsFile and photo summarization
📊 Productivity
(19)
ad-supported
5
Chat Unlimited & Ask Brutus AI
Chat Unlimited & Ask Brutus AI
Chat Unlimited & Ask Brutus AI
Powered by ChatGPT & GPT API
Free

Engage in intelligent conversations with an AI assistant powered by advanced language models and internet search. This app offers a free mode, stores past conversations, and assists with various tasks, learning, and creative endeavors. Enjoy a private and secure chat experience with a user-friendly interface.

AI Chat Bot AssistantOpenAI GPT-4 API integrationInternet Search capabilities
📚 Education
(1K)
free with in-app purchases
6
PolyBuzz: Chat with Characters
PolyBuzz: Chat with Characters
PolyBuzz: Chat with Characters
Meet & Talk with AI Chatbot
Free

Engage in realistic conversations with AI chatbots that mimic real characters, complete with authentic voices and personalities. Create your own characters or interact with those made by others in a vibrant community. Explore endless story possibilities and enjoy free, immersive dialogues.

AI chatbots with authentic voicesCharacter creation toolsInteract with community-created characters
🎬 Entertainment
(452K)
free with in-app purchases
7
Chat AI - Ask Anything
Chat AI - Ask Anything
Chat AI - Ask Anything
AI Chatbot & Essay Writer Bot
Free

Engage in intelligent conversations with an advanced AI chatbot. This app offers personalized responses on a wide range of topics and can assist with writing tasks like essays and emails. Its AI continuously learns for more natural interactions.

Intelligent conversationsPersonalized responsesEssay and content writing
📊 Productivity
(130K)
free with in-app purchases
8
AI Chat Assistant – ChatNow
AI Chat Assistant – ChatNow
AI Chat Assistant – ChatNow
Built on Gemini, GPT, Grok 4
Free

This AI assistant helps busy individuals boost productivity by handling tasks like writing emails, generating code, creating images, and summarizing documents. It supports voice input, file uploads, and image analysis, leveraging multiple advanced AI models for diverse needs.

Voice mode for real-time conversationsImage and video generationWriting and grammar assistance
📊 Productivity
(135K)
free with in-app purchases
9
AI Chat - TryChat - Chat Bot
AI Chat - TryChat - Chat Bot
AI Chat - TryChat - Chat Bot
Ask Anything
Free

Engage in conversations with advanced AI models, including GPT-4, Gemini, and Claude. This free, unlimited chat service requires no login and offers access to multiple powerful AI technologies.

Multiple AI models availableUnlimited free usageNo login required
📚 Education
(1.7K)
free with in-app purchases
10
ChatPub: All-In-One AI Chat
ChatPub: All-In-One AI Chat
ChatPub: All-In-One AI Chat
Powered by ChatGPT & GPT-4o
Free

Access multiple advanced AI models for tasks like writing, image generation, and problem-solving. Get instant answers, summarize content, and chat with AI companions. Offers specialized assistants for various needs.

AI Image GeneratorImage RecognitionReal-time Search
📊 Productivity
(625)
free with in-app purchases
11
Smart AI Chatbot Assistant o1
Smart AI Chatbot Assistant o1
Smart AI Chatbot Assistant o1
Powered by ChatGPT & GPT-4o
Free

This AI companion leverages advanced models for image generation, content summarization, and personalized communication. It can also interpret visual media, generate video subtitles, and find diet-friendly restaurants.

Image generation from promptsImage and video interpretationVideo and text summarization
📊 Productivity
(1)
freemium
12
ChatOn AI - Chat Bot Assistant
ChatOn AI - Chat Bot Assistant
ChatOn AI - Chat Bot Assistant
One Chatbot–Multiple Al Tools
Free

This AI assistant leverages advanced language models to help with writing, image transformation, document analysis, and web research. It offers over 100 prompts and integrates with your keyboard for seamless use across apps. Transform photos, summarize documents, and generate social media content with ease.

AI Chatbot & Virtual AssistantAI Writing AssistantPic Transformer (AI Photo Editing)
📊 Productivity
(281K)
free with in-app purchases
13
BypassGPT - AI Detector Check
BypassGPT - AI Detector Check
BypassGPT - AI Detector Check
undetectable ai checker tool
Free

This tool helps ensure your writing is not flagged as AI-generated. It accurately detects AI content and offers a "Humanize Now" feature to transform text into natural human patterns, making it indistinguishable from human-created content.

Accurate AI detectionHumanize text instantlyUser-friendly interface
📊 Productivity
(1.6K)
free with in-app purchases
14
Chat DNE : AI Chatbot App
Chat DNE : AI Chatbot App
Chat DNE : AI Chatbot App
Powered by Ad free ChatGPT 4o
Free

This app provides a versatile AI chatbot powered by advanced technology. It allows users to chat with text from images, PDF documents, and YouTube videos, generate images, and receive homework assistance. It also offers object recognition, automatic image captions, and voice interaction.

Chat with AI chatbotExtract text from imagesChat with PDF documents
📊 Productivity
(150)
free with in-app purchases
15
GroupMe
GroupMe
GroupMe
Group Chats, Events, Calling
Free

Connect with family, friends, and colleagues through group chats, direct messages, and shared media. Easily add members via phone number or email, control notifications, and express yourself with custom emojis and GIFs. Share photos and videos to relive memories later.

Group chat creationDirect messagingCustom emoji and GIFs
🌐 Social Networking
(1.6M)
free with in-app purchases
16
Chat AI: Ask Agent Anything
Chat AI: Ask Agent Anything
Chat AI: Ask Agent Anything
Chatbot & Search Assistant
Free

Engage in personalized conversations with an AI that understands and adapts to you. Access specialized AI assistants for various tasks, generate unique images from text, and get instant information about the world through photos. This app also offers writing assistance, language learning, and homework help.

Personalized AI conversationsSpecialized AI assistantsAI image generation
📊 Productivity
(325K)
free with in-app purchases
17
Chatbot AI - Smart Search Bot
Chatbot AI - Smart Search Bot
Chatbot AI - Smart Search Bot
Voice Chat & Text Generator
Free

This AI-powered assistant provides instant answers to any question, generates creative text content, and summarizes long documents. It also acts as a language practice partner, offers lifestyle guidance, and assists with learning and coding.

AI Chat AssistantCreative Text GenerationSmart Summarization
📊 Productivity
(15K)
free with in-app purchases
18
Gauth: AI Study Companion
Gauth: AI Study Companion
Gauth: AI Study Companion
Step-by-Step Study Guidance
Free

This AI-powered study companion provides instant, accurate answers and step-by-step explanations for all subjects. It offers a live AI tutor with voice and whiteboard capabilities, and can convert notes into quizzes and flashcards. Get help with homework, writing, and calculations from experts 24/7.

AI-powered accurate answers with step-by-step explanationsAI Live Tutor with voice and whiteboardAI Study Converter for quizzes and flashcards
📚 Education
(1.4M)
free with in-app purchases
19
Web Messenger - Dual Chat
Web Messenger - Dual Chat
Web Messenger - Dual Chat
Dual App For Parallel Space
Free

Easily manage multiple chat accounts on a single device. Access web chat, use dual accounts in parallel, and connect quickly with phone number login. Securely back up important conversations for peace of mind.

Dual chat accountsParallel space supportPhone number login
🌐 Social Networking
(4.9K)
free with in-app purchases
20
WeChat
WeChat
WeChat
Calls, chats, and more
Free

Connect with friends and family through messaging, voice, and video calls. Discover news, local services, and games within the app. Features mobile payment and health tracking capabilities.

Text, photo, voice, and video messagingGroup chats up to 500 membersHigh-quality voice and video calls
🌐 Social Networking
(80K)
free with in-app purchases

FAQ about Chatgpt O1

What are the best chatgpt o1 apps for iPhone?
Chat with o1 - Chatbot tops our chatgpt o1 apps ranking as of June 2026, with a 4.5-star average from 8 App Store ratings, and it's free to download.
Yes — 20 of the top chatgpt o1 apps we rank are free to download, including Chat with o1 - Chatbot and AI Central: o1 Preview o1 Mini.
Chat with o1 - Chatbot has no ads and offers in-app purchases, according to its App Store listing as of June 2026.
We track 202+ chatgpt o1 apps on the iOS App Store as of June 2026, ranked by rating, recency, and analysis of real user reviews.
Chat with o1 is an AI chatbot that utilizes OpenAI's o1 series models. It is designed for advanced reasoning and excels in scientific and technical problem-solving, offering precise responses.
Currently, Chat with o1 is supported on iPhone devices. It was released on December 10, 2024, with version 24.12.1.