What if your phone was supercharged with AI?
While the latest version of iOS and Android come with some AI-powered features out of the box, the truth is, your phone can do so much more if you install just a few dedicated AI apps.
In this article, we’re going to talk about the best AI apps for iPhone and Android in different categories — from general-purpose AI assistants that do a bit of everything, to specialized apps for writing, learning, and even dating.
We’ve tested over 30 best free AI apps for iPhone and Android, but out of them all, these were our favourites — in the table below, we’ve put together a quick comparison of the best AI apps, in our opinion:
If you’re curious about what we loved about each of these apps, continue reading to find out more.
These are our top picks, from most to least favourite, along with comments on what they do, who’ll enjoy them, and what we love about them:
Category: Productivity, AI Assistant & Photo Editing
Platform: iPhone, Android, Web App
Free Version: Yes
Overchat AI brings hundreds of AI tools into one app, from a writing assistant powered by ChatGPT 5.1, homework tools based on Gemini 3, image generators that run on Nano Banano 2 Pro and Seedream 4, and video creation with Sora 2 — one app gives you access to all of the latest AI tools.
In Overchat AI you can:
Key Features:
Best Use Case: When you need multiple AI tools in one place and want unlimited access without paying for premium features.
Category: Productivity
Platform: iPhone, Android
Free Version: Yes
OpenAI’s official app easily earns its second on the list — it’s almost as versatile as ChatGPT, as long as you’re ok with giving up access to models not developed by OpenAI.
That being said, ChatGPT is one of the most popular AI apps for good reason. It uses OpenAI's conversational AI to handle a massive range of tasks with impressive accuracy.
You can use ChatGPT to brainstorm ideas, simplify complex topics, compose emails, and answer detailed questions. Students love it for breaking down difficult concepts. Professionals use it for drafting content and solving problems on the go.
The natural language understanding makes conversations feel intuitive. You don't need to learn special commands or prompts — just ask what you need in plain English.
Key Features:
Best Use Case: Getting instant, detailed responses to questions or creating written content when you're away from your computer.
Category: Writing Assistant
Platform: iPhone, Android
Free Version: Yes
Grammarly integrates directly into your iPhone or Android keyboard, checking your writing in real-time across any app. It will:
Also read: how to use AI for better writing
The app learns from your writing style over time. The more you use it, the better its suggestions become. It will help your writing sound more crisp — both in your personal and professional life.
The beauty of Grammarly is that it works in the background as you write, and because it’s integrated directly into the keyboard, you don’t need to open the app to use it.
Key Features:
Best Use Case: Anyone who writes frequently on their phone and wants to ensure their messages are polished and professional.
Category: AI Companion
Platform: iPhone, Android
Free Version: Yes
If you ever feel lonely, don’t be sad — open the Replika app on your iphone instead, because this AI companion was created to be your friend. Admittedly, this type of app isn’t for everyone, but if you don’t mind a bit of role playing, you might enjoy it.
The idea is simple: Replica AI learns your texting style, remembers your interests, and adapts its personality to match yours. Then, you can chat or video call with Replika anytime you need to talk.
Key Features:
Best Use Case: When you need emotional support, want to vent without judgment, or simply need someone to talk to at any time of day.
Category: Productivity & Organization
Platform: iPhone, Android
Free Version: Yes
Ok, Notion isn’t an AI app, strictly speaking — it’s a productivity app that has a paid AI component add-on (Notion AI). Still, we had to include it, because it’s that good.
Notion AI helps you create, organize, and manage your Notion documents faster and easier than ever. The AI assists with everything from drafting meeting notes to managing complex projects within your Notion workspace.
Their writing assistant is also surprisingly good, and it’s even helpful for writing documentation based on your project files — there’s something that’s hard to put a finger on that we love in the way Notion AI’s writing sounds.
Notion itself is a new take on a note taking app/project database — you create documents with infinite possible subpages and display content in different ways: tables, lists, galleries. Many teams use Notion for project management and to document their work.
For teams, Notion AI costs $10 per member per month when billed monthly or $8 per member per month when billed annually.
Key Features:
Best Use Case: Managing projects, organizing notes, and streamlining workflows when you need AI assistance with productivity tasks.
Category: Photo Editing
Platform: iPhone, Android
Free Version: Free trial available
If the Overchat AI app didn’t exist, Lensa AI would have been our top pick for photo editing.
This app turns any selfie into a professional-quality portrait with just a few taps. It's built for anyone who wants insta-worthy photos the easy way. For example:
Key Features:
Best Use Case: Anyone who wants to elevate their selfies and photos.
Category: Photo Editing
Platform: iPhone, Android
Free Version: No, subscription required
Adobe Photoshop AI is designed for professional photographers on the go. While this app features text-to-edit workflows where you can describe what you want to change, it really shines when used as part of a manual workflow for tasks such as masking and sky replacement.
The AI object removal tool, for instance, can easily remove unwanted objects from the frame, while the content-aware fill accurately extends backgrounds.
The caveat? It's not as effective as Nano Banana Pro in Overchat AI if you only want to chat with images and make simple edits with prompts. It's more of a tool for photographers who want to edit photos without a computer.
Key Features:
Best Use Case: Users who need advanced editing capabilities on the go and want professional-grade tools in a mobile format.
Category: AI Assistant
Platform: iPhone, Android
Free Version: Yes
Microsoft Copilot is Microsoft's answer to the AI assistant revolution. It provides fast, accurate responses to questions and can turn simple text descriptions into images.
Copilot integrates with Microsoft's ecosystem, making it particularly useful if you already use Microsoft products for work or personal tasks.
Key Features:
Best Use Case: Users who want a reliable AI assistant with strong integration into Microsoft's ecosystem.
Category: AI Assistant
Platform: iPhone, Android
Free Version: Yes
Google Gemini is Google's rebranded AI chatbot, formerly known as Google Bard. For Android users, it's gradually replacing the integrated Google Assistant.
The best part about it? It’s powered by Gemini 3 — the best AI language model in the world, at the time of creating this article. Yes, it’s even better than ChatGPT — see this Gemini vs ChatGPT comparison to learn why.
Another thing going for Gemini is the integration with Google's ecosystem — it works seamlessly with services you probably already use daily, like Google Documents, Google Sheets, Google Drive, and others.
Key Features:
Best Use Case: Android users who want deep integration with Google services and need an AI assistant that can handle everything from recipes to professional templates.
Category: Productivity
Platform: iPhone, Android
Free Version: Yes
Otter.ai automatically records meetings, transcribes conversations in real-time, and creates summaries you can review later. You can then search, edit, and share these transcripts with your team.
The only negative thing about Otter AI is that some users reported difficulty removing it from Zoom. It sometimes refuses to turn off and records meetings that you didn't want to be recorded. We never experienced this issue during testing, but here’s how to Remove Otter AI from Zoom, just in case.
Key Features:
Best Use Case: Anyone who still “note-takes” manually during meetings.
Category: Education & Language Learning
Platform: iPhone, Android
Free Version: No ($14/month billed annually)
Duolingo is an AI-powered app for language learners that uses artificial intelligence to create customized lessons.
While the basic app by itself is free, you’d need to purchase their Max subscription to use the AI feature. Max is Duolingo’s most expensive subscription tier, coming at $14 a month when billed annually, which is $168 per year — not a small investment.
That being said, in our opinion, two features really stand out that might make it worth it:
The slight caveat with Duolingo is that you can replicate the same experiences for free in either Overchat AI, or ChatGPT.
Yes, In those apps, you wouldn't get progress tracking or an interface designed for language learners. However, you could still use them as language learning assistants without paying the premium price. Just keep that in mind.
Key Features:
Best Use Case: Language learners who want interactive lessons but don't want to pay for lessons with a real teacher.
These apps didn't quite make our favorite picks list, but they're still worth checking out. We'll quickly cover one and explain what it's about, which platforms it supports, and who it's for.
Youper. A pocket therapist that offers 24/7 AI-powered CBT sessions. Youper helps you manage stress, anxiety, and low moods with private, secure conversations.
Waze. AI-optimized navigation that reroutes you around traffic, alerts you to speed cameras, and crowdsources real-time road conditions from other drivers.
Wonder. Turn words and prompts into visual artwork. Type in song lyrics, poems, or character descriptions and watch Wonder create stunning images in various art styles.
Facetune. AI-enhanced photo editing with advanced touch-up tools. Perfect for creating polished social media content with digital art integration.
AI Dungeon. An AI-powered roleplaying game where you create unique worlds and adventures. Includes multiplayer features for collaborative storytelling.
Photoleap. Quick photo enhancement with AI-powered editing tools. Also generates virtual art and scenery from text descriptions.
Socratic by Google. Snap a photo of any math problem and get step-by-step solutions with visual explanations.
Rizz AI. Helps you craft better messages on dating apps. Upload screenshots of profiles or conversations and get personalized message suggestions.
In this article, we looked at 11 of the best AI apps for iPhones in various categories, including productivity, photo editing, and even an app that helps you do better on Tinder (in the honorable mentions section). While your iPhone or Android app comes with some basic AI features, you can do so much more with your phone in 2025/2026 by installing specialized AI apps such as Overchat AI or ChatGPT. If you’re reading this on your phone, don't wait. Install the best AI app on this list and start experimenting instantly!
The best AI apps are Overchat AI and ChatGPT for productivity, Grammarly for writing, Lensa AI for photo editing, and Google Gemini for their native integration of the world’s most advanced AI model — Gemini 3 Pro.
Overchat AI, ChatGPT, Grammarly, Microsoft Copilot, Google Gemini — all of these apps have free versions.
Casual users will appreciate Overchat AI and Lensa AI, which allow you to edit photos by simply describing the changes you want in English, like "Remove the trash can in the bottom right corner." If you want more serious editing capabilities with complete control over the results and don't mind a challenging learning curve, try Adobe Photoshop AI.
ChatGPT is the most widely used AI app, because it was created by OpenAI. ChatGPT is the fastest growing consumer app in history, so there’s no competition, really. ChatGPT has 500M+ downloads on Android alone, which is more than all other apps on this list combined.
Your iPhone already has Siri, but it's rather limited and often makes mistakes. Consider adding the Overchat AI app to your toolkit. Use it for tasks that Siri doesn't handle well or when you want to engage a more advanced AI model, such as Gemini 3.
