AI Writer — Write Better. Sound Human.

AI Writer is an AI paraphrasing tool, AI humanizer, and grammar checker in one app — paraphrase in 6 tones, translate 30+ languages, detect AI content, and solve academic problems from photos. Available on iOS and Android.

AI Writer across three mobile screens showing the paraphrase editor, writing-tool library, and a humanizer result

Why Choose AI Writer

10 AI Writing Tools in One App

AI Writer gives students, writers, and professionals every tool they need to write better, faster, and more naturally — powered by Google Gemini.

Paraphrase in 6 Tones

AI Writer's AI paraphrasing tool rewrites any text in formal, casual, creative, academic, simple, or professional tone so users always match the right voice for their audience.

Fix Grammar Instantly

AI Writer's grammar checker detects spelling, punctuation, and style errors in real time and delivers corrected text users can copy with one tap.

Translate 30+ Languages

AI Writer translates text between more than 30 languages with automatic source-language detection, letting users communicate across language barriers instantly.

Humanize AI Text

The built-in AI humanizer rewrites stiff, robotic AI output into natural, human-sounding prose — useful for polishing your own drafts before you hit send.

Detect AI Content

AI Writer's AI Content Detector analyzes any passage and returns a probability score showing how likely the text was written by AI.

Summarize Long Texts

AI Writer's Summarizer condenses long articles and documents into concise summaries with extracted key points, saving users hours of reading time.

Solve Problems from Photos

AI Writer's AI Solver lets users photograph math, physics, chemistry, or any academic problem and receive step-by-step solutions powered by Google Gemini.

Chat with AI Assistant

AI Writer includes a built-in AI Chat Assistant for real-time conversational writing help, brainstorming, and on-the-fly text generation.

AI Writer's core tools, explained

What is an AI humanizer and how does it work?

An AI humanizer is a rewriting tool that takes text produced by an AI model and rephrases it so it reads the way a person naturally writes. AI-generated text tends to be statistically uniform: sentence lengths stay similar, transitions repeat, and word choices follow predictable patterns. AI Writer's humanizer rewrites the passage to vary sentence rhythm, swap stock phrases for plainer language, and preserve your intended meaning and tone while removing that machine-like uniformity. It is designed for legitimate uses — polishing a draft you wrote with AI assistance, making translated text sound natural, or fixing writing that a detector wrongly flagged. No humanizer can guarantee a specific score in any detector, and AI Writer does not claim to; you can check the result yourself with the app's built-in AI detector before you use the text anywhere.

How does AI content detection work in AI Writer?

AI Writer's AI content detector analyzes a passage and estimates how likely it is that the text was machine-generated. Detectors look at statistical signals — how predictable each next word is (often called perplexity), how much sentence structure varies (burstiness), and how closely phrasing matches patterns common in model output. The result is a probability, not proof: short texts, formulaic writing, and text by non-native English speakers can score as AI-like even when a human wrote them, which is why major providers describe detection as inherently uncertain. In AI Writer the detector runs on any text you paste, returns a clear likelihood score in seconds, and works alongside the paraphraser and humanizer, so you can check a draft, revise it, and re-check it in one place on your phone instead of switching between web tools.

How does the photo homework solver work?

AI Writer's AI Solver lets you photograph a math, physics, chemistry, or other academic problem and returns a worked, step-by-step solution rather than just a final answer. The app reads the problem from your photo, interprets the notation, and generates each stage of the solution with a short explanation of why the step is taken, powered by Google's Gemini models. You can ask follow-up questions in the chat screen when a step isn't clear. It is built as a study aid: the value is in following the reasoning, checking your own attempt against it, and learning the method — not in copying answers. Solutions arrive in seconds, work is saved to your on-device history, and no account is required. The solver is included in the free daily quota, with unlimited use available through the premium subscription.

How It Works

Get Started in 3 Simple Steps

No complicated setup. No learning curve. Download AI Writer and start writing better in seconds.

Choose a Tool

Pick from 10 AI writing tools on the home screen — Paraphrase, Grammar Check, Translate, Humanize, Summarize, AI Solver, and more.

Enter or Capture Your Text

Type, paste text, or snap a photo of a problem. Then select options like tone, target language, or academic subject.

Get Instant Results

AI Writer processes your request in seconds and delivers polished output you can copy, share, or save to your local history.

Screenshots

See It in Action

Take a closer look at AI Writer across every platform.

FAQ

Got Questions? We Have Answers

Everything you need to know about AI Writer before getting started.

What is AI Writer?

AI Writer is an all-in-one AI writing toolkit for iOS and Android that combines 10 tools — paraphrasing in 6 tones, grammar checking, translation across 40+ languages, AI text humanizing, AI content detection, summarizing, plagiarism checking, sentiment analysis, email writing, and photo-based academic problem solving. It is powered by Google Gemini and supports 40+ languages across both its interface and tools.

Is AI Writer free to use?

AI Writer offers a free tier with limited daily usage. For unlimited access to all 10 tools, users can subscribe to a weekly or annual premium plan managed through the App Store or Google Play.

What languages does AI Writer support?

Both AI Writer's interface and its writing tools support 40+ languages, so users can work in their preferred language and translate, paraphrase, or summarize text across dozens of others.

How does the AI Solver work?

Users take a photo of any academic problem — math, physics, chemistry, biology, history, or more — and AI Writer uses Google Gemini's vision capabilities to analyze the image and return a detailed, step-by-step solution.

Is my data safe with AI Writer?

AI Writer processes text through Google's Generative AI servers but does not permanently store your input text or results on remote servers. Writing history is saved locally on your device only, and photos captured for AI Solver are processed temporarily and not retained.

Can AI Writer humanize AI-generated text?

Yes. AI Writer's Humanizer tool specifically rewrites AI-generated text to sound more natural and human-like, helping users produce content that reads authentically and passes common AI detection tools.

Ready to Write Better?

Upgrade your writing with AI Writer. Download now and start paraphrasing, translating, and solving in seconds.