Best Chat Gpt Zero Apps

222+ iOS apps curated and reviewed

4.5 avg rating
20 free apps
Updated July 2026

AIZero is the household name in chat gpt zero, but it's far from the only option. We track 222+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Compare top Chat Gpt Zero Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1AIZero - AI DetectorAIZero - AI DetectorFree3.6★ (248)NoYesAug 2026
2ChatGPTChatGPTFree4.8★ (9.2M)YesYesAug 2026
3BypassGPT - AI Detector CheckBypassGPT - AI Detector CheckFree4.5★ (1.6K)NoYesAug 2026
4Grammarly: AI Keyboard & NotesGrammarly: AI Keyboard & NotesFree4.7★ (221K)NoYesAug 2026
5AI Chat 5.6: GeniusAI Chat 5.6: GeniusFree4.7★ (52K)NoYesAug 2026
6AI Detector · HumanizerAI Detector · HumanizerFree4.6★ (133)NoYesAug 2026
7Gptzero humanize aiGptzero humanize aiFree4.8★ (55)NoYesJul 2026
8AI Chat Assistant – ChatNowAI Chat Assistant – ChatNowFree4.8★ (138K)YesYesAug 2026

Top Picks for Chat Gpt Zero

AIZero - AI Detector#1

AIZero - AI Detector by BRIDGES HULL LTD

Powered by GPTZero API
Editor's Choice
🔧 Utilities
3.6😞(248 ratings)
FreeIn-App Purchases
AIZero - AI Detector screenshot 1
AIZero - AI Detector screenshot 2
AIZero - AI Detector screenshot 3
AIZero - AI Detector screenshot 4

This app uses advanced AI to detect if text was written by a human or an AI model. It analyzes content at sentence, paragraph, and document levels for high accuracy, especially for English prose. Ideal for academic integrity and verifying text authenticity.

Room to Improve

  • ❌ App stopped working
  • ❌ No customer support response
  • ❌ Refund not issued
ChatGPT#2

ChatGPT by OpenAI OpCo, LLC

Your everyday AI assistant
Strong Contender
📊 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
BypassGPT - AI Detector Check#3

BypassGPT - AI Detector Check by Warrance Tougas

undetectable ai checker tool
Worth Considering
📊 Productivity
4.5😞(1.6K ratings)
FreeIn-App Purchases
BypassGPT - AI Detector Check screenshot 1
BypassGPT - AI Detector Check screenshot 2
BypassGPT - AI Detector Check screenshot 3
BypassGPT - AI Detector Check screenshot 4

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.

What We Love

  • 👍 Simple and effective
  • 🚀 Passes AI detection tools
  • 💡 Genuinely makes text flow in a human way

Room to Improve

  • 🐛 Buggy and unreliable
  • 🔒 No free trial, charges immediately
  • 🔒 Lack of customer support and refunds

More Chat Gpt Zero apps to explore

4
Grammarly: AI Keyboard & Notes
Grammarly: AI Keyboard & Notes
Grammarly: AI Keyboard & Notes
Write, dictate, edit, improve
Free

Enhance your writing across all apps with AI-powered suggestions for grammar, spelling, and clarity. Generate new versions of your text, detect tone, and improve conciseness. Also includes a document editor and Safari extension for comprehensive writing support.

Real-time grammar and spelling suggestionsAI-powered text rewritesTone detection and transformation
📊 Productivity
(221K)
freemium
5
AI Chat 5.6: Genius
AI Chat 5.6: Genius
AI Chat 5.6: Genius
Built on GPT Plus Images 2.0
Free

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.

Image generation and editingText writing and rewritingPhoto-based explanations
🔧 Utilities
(52K)
free with in-app purchases
6
AI Detector · Humanizer
AI Detector · Humanizer
AI Detector · Humanizer
Check Plagiarism & Rewrite
Free

Easily analyze text content to detect AI-generated writing or human authorship. Scan documents, articles, and even audio transcripts with advanced AI detection capabilities. Offers a premium membership for unlimited analysis and advanced features like a humanizer.

Analyze AI-generated contentDetect human-written textScan documents and PDFs
📊 Productivity
(133)
free with in-app purchases
7
Gptzero humanize ai
Gptzero humanize ai
Gptzero humanize ai
walter writes ai & turnitin
Free

Instantly detect AI-generated content and rewrite it to sound natural. Perfect for students, writers, and professionals looking to enhance essays, articles, emails, and more. Preserve meaning while adapting tone and flow for authentic writing.

AI DetectionHumanize TextPreserve Meaning
📊 Productivity
(55)
freemium
8
AI Chat Assistant – ChatNow
AI Chat Assistant – ChatNow
AI Chat Assistant – ChatNow
Built on Gemini, GPT-5, 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
(138K)
free with in-app purchases
9
AI Chat 4.0: Open Chatbot 4o
AI Chat 4.0: Open Chatbot 4o
AI Chat 4.0: Open Chatbot 4o
Image, Photo & Text Generator
Free

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.

Multiple leading AI modelsAI Chatbot for intelligent answersText and content generation
📊 Productivity
(1.9K)
freemium
10
Google Chat
Google Chat
Google Chat
Efficient Team Communication
Free

Connect, collaborate, and accomplish tasks with AI-powered messaging. Streamline teamwork with integrations and smart features. Securely communicate with your team, whether in real-time or asynchronously.

AI-powered conversation summariesAutomatic message translationAI-powered search
💼 Business
(305K)
free with in-app purchases
11
21 Trainer
21 Trainer
21 Trainer
Beat the man
Free

Practice card counting to improve your blackjack skills. Challenge yourself to count as many cards as possible within a 30-second time limit.

Card counting practice30-second challengesBlackjack game improvement
🎬 Entertainment
(20)
free
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
Chat Unlimited & Ask Brutus AI
Chat Unlimited & Ask Brutus AI
Chat Unlimited & Ask Brutus AI
Chat using GPT-5, Grok, Claude
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
14
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
15
ChatBox AI - Chatbot Assistant
ChatBox AI - Chatbot Assistant
ChatBox AI - Chatbot Assistant
Top Al models・Image Generator
Free

This AI-powered assistant offers a suite of tools for text generation, image creation, document processing, and real-time information retrieval. It can help with writing, problem-solving, brainstorming, and even generating music and stories.

AI text generationAI image generationDocument summarization and translation
📊 Productivity
(164K)
free with in-app purchases
16
AI Detector & Undetectable AI
AI Detector & Undetectable AI
AI Detector & Undetectable AI
BypassGPT,AI Humanizer,GPTzero
Free

Easily check any text for AI-generated content with advanced detection technology. This app also offers a one-tap feature to humanize your writing, making it undetectable to AI detectors. Ideal for students, educators, and content creators.

AI detection sentence by sentenceHumanize text to make it undetectableFast scanning and humanizing
📊 Productivity
(249)
free with in-app purchases
17
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
(81K)
free with in-app purchases
18
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
(326K)
free with in-app purchases
19
Chat 5.0: AI Plus, Open Bot
Chat 5.0: AI Plus, Open Bot
Chat 5.0: AI Plus, Open Bot
ChatBot & Picture Generator
Free

This app offers specialized AI experts for various tasks, from image creation and translation to cooking and fitness advice. It provides a secure, personalized experience with data encrypted and stored locally. Access advanced features through premium subscriptions.

Specialized AI experts (cooking, fitness, travel, etc.)AI image creation from text promptsAdvanced translation capabilities
📊 Productivity
(163)
freemium
20
ChatGenius - AI Chat, ChatBot
ChatGenius - AI Chat, ChatBot
ChatGenius - AI Chat, ChatBot
Smart Assistant & AI Writer
Free

This AI-powered companion utilizes the GPT-5.1 API to offer advanced chatbot interactions, creative writing assistance, and research tools. It also includes code generation, smart editing, and speech-to-text capabilities, making daily tasks more productive and enjoyable.

Advanced AI chatbot interactionsPoetry and social media post generationResearch and concept explanation
📊 Productivity
(4.3K)
free with in-app purchases

FAQ about Chat Gpt Zero

What are the best chat gpt zero apps for iPhone?
AIZero - AI Detector tops our chat gpt zero apps ranking as of July 2026, with a 3.6-star average from 248 App Store ratings, and it's free to download.
Yes — 20 of the top chat gpt zero apps we rank are free to download, including AIZero - AI Detector and ChatGPT.
AIZero - AI Detector has no ads and offers in-app purchases, according to its App Store listing as of July 2026.
We track 222+ chat gpt zero apps on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.
This app is designed to determine whether a piece of text was written by a human or generated by an AI model. It uses a cutting-edge AI detection model to analyze language intricacies at various levels, from sentences to entire documents, to distinguish between human and AI-generated content.
The app's model has been trained on a vast and diverse collection of human-written and AI-generated texts, with a specific focus on English prose. This extensive training aims to ensure the highest accuracy in detecting AI-authored content, including essays.