Best AI Writing Assistant Apps

250+ iOS apps curated and reviewed

4.4 avg rating
20 free apps
Updated September 2026

The best ai writing assistant apps on iPhone average 4.4★ across 250+ titles — we've ranked them by what real users actually keep on their phones. Updated September 2026.

Compare top AI Writing Assistant Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1AI Writer - Writing AssistantAI Writer - Writing AssistantFree4.7★ (1.1K)NoYesOct 2026
2Claude by AnthropicClaude by AnthropicFree4.7★ (277K)NoYesOct 2026
3AI Chatbot Assistant: ChatASKAI Chatbot Assistant: ChatASKFree4.3★ (10)NoYesOct 2026
4Offline AI Writing AssistantOffline AI Writing AssistantFree—YesYesSep 2026
5AI Writer: Email Letter EssayAI Writer: Email Letter EssayFree4.8★ (6.6K)YesYesOct 2026
6Chat Smith: AI Chatbot & AgentChat Smith: AI Chatbot & AgentFree4.6★ (167K)YesYesOct 2026
7AI Writing Chatbot AssistantAI Writing Chatbot AssistantFree5.0★ (1)NoYesSep 2026
8AI Writing Assistant - ElevateAI Writing Assistant - ElevateFree—NoYesMay 2026

Top Picks for AI Writing Assistant

AI Writer - Writing Assistant#1

AI Writer - Writing Assistant by MasterMind Software LLC

Smart Chatbot Powered by GPT 5
Editor's Choice
📊 Productivity
4.7😊(1.1K ratings)
FreeIn-App Purchases
AI Writer - Writing Assistant screenshot 1
AI Writer - Writing Assistant screenshot 2
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AI Writer - Writing Assistant screenshot 4
AI Writer - Writing Assistant screenshot 5
AI Writer - Writing Assistant screenshot 6

This AI-powered writing assistant helps you generate various types of text, from essays and emails to creative content and code. It also offers web search, summarization, translation, and grammar correction to enhance your writing and research process.

What We Love

  • 🙏 Great writing app and easy to use
  • 👍 Can write a lot
  • 👍 Best app ever! Very good!
  • 👍 Great app for hw
  • 👍 Lifesaver for students with learning disabilities
  • 👍 Great app for aspiring writers
  • 👍 Key tool for improving and developing global independence
  • 👍 Helpful for school work
  • 👍 Very good
  • 👍 The best app possible for writing
  • 👍 A great educational tool
  • 👍 Best app so far!
  • 👍 Love it
  • 👍 Good stories and free
  • 👍 Amazing information and help

Room to Improve

  • 🐛 Hard to understand, not easy at all
  • 🔒 Can't find a setting to cancel trial
  • 🔒 Can't even buy anything with it
  • 🔒 Too limited and restricted, can't answer questions properly
  • 🐛 No instructions or tutorial, can't get it to proofread
  • 💰 Costs money to write anything after using up initial credits
  • 💰 Deceiving, input limit is only 250 characters
  • 🐛 Inaccurate information on real people
Claude by Anthropic#2

Claude by Anthropic by Anthropic PBC

AI assistant for life and work
Strong Contender
📊 Productivity
4.7😊(277K ratings)
FreeIn-App Purchases
#2in Productivity
Claude by Anthropic screenshot 1
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Claude by Anthropic screenshot 3
Claude by Anthropic screenshot 4
Claude by Anthropic screenshot 5
Claude by Anthropic screenshot 6

This AI assistant helps you write, research, code, and solve complex problems. It can analyze documents, code, and images, and even respond to voice commands. Expand your capabilities and tackle new projects with this intelligent thinking partner.

What We Love

  • 🚀 Powerful and versatile AI assistant
  • 👍 Intuitive and easy to use interface
  • 💡 Innovative features like 'Projects'
  • 🤖 Intelligent and thoughtful responses
  • 📚 Comprehensive knowledge base
  • 🔍 Helpful for a wide range of tasks

Room to Improve

  • 🔒 Concerns about privacy and data usage
  • 🚫 Limitations on free usage and throttling
  • 🐛 Occasional bugs and crashes
  • 🙅‍♀️ Overly restrictive content policies
  • 🤖 Lack of true conversational abilities
AI Chatbot Assistant: ChatASK#3

AI Chatbot Assistant: ChatASK by LYKOV STUDIO LTD

Powered by ChatGPT-5.5 & GPT-5
Worth Considering
📊 Productivity
4.3(10 ratings)
FreeIn-App Purchases
AI Chatbot Assistant: ChatASK screenshot 1
AI Chatbot Assistant: ChatASK screenshot 2
AI Chatbot Assistant: ChatASK screenshot 3
AI Chatbot Assistant: ChatASK screenshot 4
AI Chatbot Assistant: ChatASK screenshot 5
AI Chatbot Assistant: ChatASK screenshot 6

This AI companion leverages advanced language models to generate images, solve math problems, and offer personalized assistance. It integrates with your keyboard and offers voice typing for enhanced productivity. Access AI tools and summaries across your devices, including Apple Watch.

More AI Writing Assistant apps to explore

FAQ about AI Writing Assistant

What are the best ai writing assistant apps for iPhone?
AI Writer - Writing Assistant tops our ai writing assistant apps ranking as of September 2026, with a 4.7-star average from 1.1K App Store ratings, and it's free to download.
Yes — 20 of the top ai writing assistant apps we rank are free to download, including AI Writer - Writing Assistant and Claude by Anthropic.
AI Writer - Writing Assistant has no ads and offers in-app purchases, according to its App Store listing as of September 2026.
We track 250+ ai writing assistant apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.

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