Compare Microsoft Copilot - AI Assistant, ChatGPT - AI Assistant, and AI Assistant by xAI: Which App is the Best?

Grok is xAI's AI assistant that combines real-time information access with a witty personality, offering text generation, image creation, and seamless X platform integration.
The official ChatGPT mobile app brings OpenAI's powerful AI assistant to your pocket with voice conversations, image generation, and seamless cross-device sync.
A helpful AI assistant that can chat, create images, and work with Microsoft Office apps. It is a good alternative to ChatGPT.
Key Features
  • Real-time Information: Access to current events and live data
  • Multimodal AI: Text, image generation, and image analysis capabilities
  • Personality: Witty and rebellious AI personality with humor
  • Integration: Seamless connection with X (Twitter) platform
  • Advanced Reasoning: Complex problem-solving and analytical capabilities
  • Image Generation: Create striking visuals from text descriptions
  • Smart Chat: Talk to AI like you're texting a friend
  • Voice Chat: Just talk and the AI responds
  • Make Images: Turn your ideas into pictures
  • Photo Help: Upload photos and ask questions about them
  • Sync Everywhere: Your chats follow you from phone to computer
  • Custom AI: Teach the AI how you want it to talk
  • Chat with AI: Ask questions, get help with writing, or just have a conversation
  • Create Images: Describe what you want and the AI makes pictures for you
  • Talk to AI: Use your voice instead of typing
  • Translate Text: Get help with multiple languages
  • Works with Office: Use AI directly in Word, Excel, and PowerPoint
  • Write for You: Help with emails, resumes, and other writing tasks
Our Rating
7.3
8.1
8.5
Total users
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Total ratings
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Average rating
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Entry Level PriceFreeFreeFree
Android
Google Play Store
Downloads
Google Play Store
Downloads
Google Play Store
Downloads
iOS
Apple App Store
Apple App Store
Apple App Store
Features
8.0

Grok's feature set is impressive and comprehensive. The real-time information access is what really sets it apart - you can ask about current events and get up-to-the-minute answers that other AI assistants simply can't provide. The multimodal capabilities are particularly strong, with image generation that produces striking visuals and the ability to analyze uploaded images providing valuable insights.

The integration with X platform is seamless and adds significant value for users already invested in that ecosystem. Grok's personality features, including its witty responses and rebellious tone, make interactions more engaging than typical AI assistants.

Key Features:

  • Real-time information access
  • Multimodal AI (text, image generation, image analysis)
  • Witty and rebellious personality
  • Seamless X platform integration
  • Advanced reasoning capabilities

However, we noticed that some advanced features are locked behind the X Premium+ subscription, which may limit accessibility for casual users.

9.5

ChatGPT has a lot of cool features that make it useful for pretty much anyone. It's not just a chat app - it can do a bunch of different things.

What ChatGPT Does Best

1. Smart Chatting:

This is where ChatGPT really shines. It's better at having natural conversations than any other AI app we've tried. You can ask it anything from "What's the weather like?" to "Help me plan a trip to Japan" and it just gets it.

It remembers what you talked about earlier in the conversation, so it feels like talking to someone who's actually listening. You can have long conversations and it keeps track of everything.

2. Voice Chat:

This feature is really cool. You just tap the microphone button and start talking. The app shows a little wave animation so you know it's listening. It's like talking on the phone, but with an AI.

We tested this a lot and it works really well. It understands what you're saying most of the time, and responds quickly. Great for when you're driving or cooking and can't type.

3. Making Pictures:

You can tell ChatGPT to make pictures for you. Just describe what you want to see, and it creates an image. This costs money though - it's only in the paid version.

We tried asking it to make pictures of things like:

  • "a cat wearing a hat"
  • "a sunset over the ocean"
  • "a robot playing guitar"

The results were pretty good. Not perfect, but definitely usable.

4. Works Everywhere:

The best part is that your conversations follow you around. Start a chat on your phone, then open it on your computer and it's all there. Really handy when you switch between devices.

5. Photo Help:

You can take a picture of something and ask ChatGPT what it is. We tried this with:

  • Food and recipes
  • Landmarks and buildings
  • Handwritten notes

It's pretty good at figuring things out.

The main downside is that the free version is pretty limited. You only get the older AI model, which isn't as smart as the paid version. A lot of users complained about this - they want the good stuff without paying.

9.0

Microsoft Copilot has a lot of useful features. The main thing it does really well is chat with you like a helpful friend. You can ask it questions, get help with writing, or just have a conversation. You don't even need to sign up to start using it.

What we really liked:

  • Chat Feature: This is where Copilot shines. You can talk to it about anything - from asking for help with homework to getting advice on cooking. The AI understands what you're saying and gives helpful answers.
  • Image Creation: This is pretty cool. You just describe what you want to see, like "a cat sitting on a beach at sunset," and it creates a picture for you. We tried this a few times and the results were pretty good.
  • Voice Commands: You can talk to the AI instead of typing. This is great when you're driving or cooking and can't type. It works surprisingly well.
  • Microsoft Office Integration: If you use Word, Excel, or PowerPoint, this is a game-changer. You can get AI help directly in these apps, which saves a lot of time.
Performance
8.0

The extension performs seamlessly, allowing you to interact with Grok without any lag or interruptions. The app handles text generation efficiently, and the image generation feature produces results quickly while maintaining good quality. The integration with X platform works smoothly, with minimal latency when accessing real-time information.

Performance Highlights:

  • Fast text generation responses
  • Quick image generation with good quality
  • Smooth X platform integration
  • Stable across different devices
  • Good network performance

We did notice occasional performance variations, particularly during peak usage times, but these were infrequent and didn't significantly impact the user experience. The app maintains good stability across different devices and network conditions. The multimodal features, including image analysis and generation, perform consistently well, though some users have reported occasional delays with complex requests. Overall, the performance meets expectations for a modern AI assistant application.

8.0

The app runs smoothly most of the time. You can chat with the AI without any delays or problems, and it loads quickly.

The voice chat works really well too. There's almost no delay between when you speak and when the AI responds. The voice recognition is accurate, and the conversation feels natural and smooth.

However, we did run into some problems during busy times. The app can get slow or even stop working when lots of people are using it at once. This mostly affects free users since paid users get priority access.

The sync feature works great - your conversations show up quickly on all your devices. Even with long chat histories, the app stays responsive and doesn't slow down.

One area that could be better is the image generation. It can take a while to create images, especially for complicated requests. This makes sense given how much work it takes, but it can be frustrating if you're in a hurry.

The app doesn't drain your battery too much, though using voice chat will use more power than just typing. Overall, it runs well and doesn't cause problems with your phone.

9.0

Microsoft Copilot works really well. The chat responses come back quickly, and the AI usually understands what you're asking for. We didn't experience any lag or crashes while using it.

The image creation feature is surprisingly fast. You describe what you want, and within a few seconds, you get a picture. The quality is usually pretty good too.

The voice feature works smoothly. It understands what you're saying most of the time, and the responses are clear and natural-sounding.

If you use it with Microsoft Office apps, the integration works seamlessly. You can switch between Copilot and your documents without any problems.

The app doesn't drain your battery too much, and it doesn't take up a lot of storage space. Overall, it performs really well for an AI assistant.

Design
7.0

The design is clean and functional, following modern mobile app conventions. The interface is intuitive with a familiar chat-based layout that users will find immediately recognizable. The dark theme with X's signature styling creates a cohesive brand experience that feels premium and polished.

The app's visual hierarchy is well-structured, making it easy to distinguish between different types of content - text responses, generated images, and interface elements.

Design Highlights:

  • Clean, modern chat interface
  • Dark theme with X branding
  • Clear visual hierarchy
  • Intuitive navigation

However, we found that the design could benefit from more customization options and that the interface occasionally feels somewhat basic compared to more feature-rich competitors. The minimalist approach works well for the core functionality but may leave power users wanting more advanced interface options.

9.0

The app looks clean and simple, which makes it easy to use right away. We really like how it focuses on the conversation instead of trying to look fancy.

What we love most is how easy it is to tell who said what:

  • Your messages show up on the right in blue bubbles
  • AI responses are on the left in gray bubbles

Simple, but it works really well.

The voice chat interface is really nice too. When you're talking, you see a little wave animation that moves with your voice. It's a small thing, but it makes you feel like the app is actually listening.

Getting around the app is straightforward. There's a simple menu button that gives you access to settings and your chat history without cluttering up the main screen.

Some people said the app looks a bit plain compared to other AI apps. We get that - it's not flashy, but that's actually what makes it work so well. You can focus on talking to the AI without getting distracted by fancy graphics.

8.0

The app looks clean and modern. It's easy to figure out how to use it, even if you've never used an AI assistant before. The chat interface is simple - just type and hit send, like texting a friend.

We liked how the image creation feature works. You just type what you want to see, and the app shows you the picture. It's straightforward and doesn't require any special knowledge.

The voice feature has nice visual feedback - you can see when it's listening and when it's processing what you said. This makes it feel more natural to use.

Overall, the design is good but not perfect. Some parts could use a bit more polish, but it gets the job done without being confusing.

Value for Money
6.0

Grok's value proposition is somewhat mixed. The requirement for X Premium+ subscription ($16/month) creates a significant barrier to entry, especially when compared to free alternatives like ChatGPT or other AI assistants. However, for users already invested in the X ecosystem, Grok provides unique value through its real-time information access and distinctive personality.

Value Breakdown:

  • Free Tier: Limited access to basic features
  • Premium ($16/month): Full access to all features
  • Best For: X ecosystem users and power users
  • Alternative: Free AI assistants available

The premium features, including advanced image generation and priority access, do offer tangible benefits, but the cost may be prohibitive for casual users. We found that the value is most apparent for power users who can leverage the real-time information capabilities and advanced features regularly. For occasional users or those primarily interested in basic AI assistance, the subscription requirement may not justify the cost compared to free alternatives.

6.0

ChatGPT has a free version that you can use without paying anything. It gives you basic chat features with the older AI model, which is fine for simple questions and casual conversations.

But the $20/month price for the good features is pretty steep. The paid version gives you:

  • The better AI model (GPT-4)
  • Image generation features
  • Priority access during busy times

That's a lot of money for an app that many people think should be free.

Some users in the reviews were really frustrated about this. They got used to the free features and then found out the good stuff costs money.

The paid version is worth it if you use AI a lot for work, school, or creative projects. The better AI model gives much more detailed and helpful responses, and the image generation can be really useful.

We think it's most valuable for people who need AI help regularly. If you just want to ask the occasional question, the free version is probably fine. But if you want to do serious work with AI, the paid features are actually worth the money.

The voice features and syncing work on both free and paid versions, which is nice. But the way they limit the free version to push people toward paying feels a bit aggressive.

8.0

Microsoft Copilot offers good value. You can use it for free, which gives you access to chat with AI and create images. This is actually pretty generous compared to some other AI apps.

The free version is good enough for most people. You can ask questions, get help with writing, and create images without paying anything.

If you want more features, there's Copilot Pro for $20 per month. This gives you:

  • Faster responses
  • Better integration with Microsoft Office apps
  • Priority access to new features

It's worth it if you use Office a lot for work.

The pricing is reasonable compared to other AI assistants. The free tier is quite good, and the Pro version offers real value for people who need the extra features.

Ease of Use
8.0

Grok is remarkably easy to use, especially for users already familiar with chat-based AI interfaces. The onboarding process is straightforward, and the app's core functionality is immediately accessible. The chat interface is intuitive, with clear input areas and well-organized response layouts.

We particularly loved how the app handles different types of interactions - text conversations, image generation, and image analysis - all through a unified interface that doesn't overwhelm users. The integration with X platform is seamless, making it easy for existing X users to access Grok.

What Makes It Easy:

  • Familiar chat-based interface
  • Straightforward onboarding
  • Unified interaction system
  • Seamless X platform integration

However, we did notice that some advanced features might not be immediately discoverable for new users, and the subscription requirement could be clearer during the initial setup process.

9.0

This might be the easiest AI app to use. It works right away - no complicated setup or learning curve.

Downloading it is simple, and it works on both iPhones and Android phones. Once you open it, you can just start typing or tap the microphone to talk. That's it.

The voice feature is really easy to use:

  • Just tap the microphone and start talking
  • The app shows you when it's listening
  • It's so natural that you forget you're talking to a computer

The chat interface looks like any other messaging app you've used - WhatsApp, Facebook Messenger, etc. So it feels familiar right away. Your conversations are organized clearly, and you can easily find old chats.

Even though it has lots of features, nothing feels overwhelming. The advanced stuff like making images is there if you want it, but it doesn't get in the way of basic chatting.

The only confusing part is figuring out what's free and what costs money. The app could do a better job of showing you what you're missing out on with the free version.

That's why we gave it a 9 out of 10. It's super easy to use, though some of the fancier features take a little time to figure out.

9.0

This is probably one of the easiest AI assistants to use. You can start chatting right away without any complicated setup. No account needed for basic features, which is nice.

Getting started is simple:

  • Download the app
  • Start typing
  • The AI responds quickly and clearly

We didn't need to read any instructions to figure out how to use it.

The voice feature is really well done. You just tap the microphone button and start talking. It understands what you're saying most of the time, and the responses are clear.

Creating images is also super easy. You just describe what you want, and the AI makes it for you. No need to learn complicated settings or options.

We give it a 9 out of 10 because it's so easy to use. Even people who aren't tech-savvy should be able to figure it out quickly.

Security & Privacy
7.0

Grok's security and privacy practices are generally solid, with xAI implementing standard industry practices for data protection. The app requires appropriate permissions and follows modern security protocols for user authentication and data transmission. However, we noted some concerns about data sharing practices, particularly regarding the integration with X platform and potential data usage for training purposes.

Security & Privacy Features:

  • Standard industry security protocols
  • Appropriate permission requirements
  • Basic privacy controls
  • Data encryption in transit

Users should be aware that conversations and interactions may be used to improve the AI model, which is common practice but worth noting for privacy-conscious users. The app does provide basic privacy controls, but we found the privacy policy could be more transparent about specific data usage and retention policies. Overall, the security measures appear adequate for typical use cases, though users with high privacy requirements may want to review the detailed privacy terms.

7.0

We gave ChatGPT a 7 out of 10 for security and privacy. It uses standard security practices, which is good, but there are some things to be aware of.

The good news is that OpenAI is pretty open about how they handle your data. You can easily find their privacy policy in the app, and they explain what they do with your information.

However, there are some concerns. The app collects a lot of your personal data:

  • Everything you say in conversations
  • Your voice recordings
  • Your conversation history

OpenAI says they use this to make their AI better, but that means they're storing and potentially using your private conversations.

We noticed that some users were worried about the sync feature. Since your conversations are stored on OpenAI's servers (not just on your phone), they can access everything you've said. This is what makes the cross-device sync work, but it also means your chats aren't really private.

The voice chat feature is convenient, but it also means your voice is being recorded and stored. You should know that your voice conversations could be used to train the AI.

OpenAI does give you some control - you can delete your chat history and opt out of some data collection. But these options are kind of hidden and not easy to find.

8.0

Microsoft Copilot gets an 8 out of 10 for security and privacy. Since it's made by Microsoft, it uses the same security measures that protect their other products like Office and Windows.

Your conversations and the images you create are encrypted, which means they're protected from hackers. Microsoft has a good track record with keeping user data safe.

If you sign in with your Microsoft account, you get extra security features like two-factor authentication. This adds another layer of protection to your account.

Microsoft is pretty clear about how they handle your data. They don't sell your information to other companies, and you can control what data they collect.

Just remember - like with any AI app, don't share really personal or sensitive information. While Microsoft keeps things secure, it's always better to be careful about what you share.

Conclusion
Grok stands out as a unique AI assistant with its real-time information access and distinctive personality. While the requirement for X Premium+ subscription may be a barrier for some users, those who invest in the platform will find a powerful AI tool that combines humor, intelligence, and current awareness in an engaging package.

ChatGPT is still the best AI chat app out there. It's really good at conversations and has lots of useful features. The free version is okay for basic stuff, but if you want the good features, you'll need to pay for the premium version.

We've been using Microsoft Copilot for a while now and really like it. It's great for chatting with AI, creating images, and getting help with work. The free version is pretty good, but if you use Microsoft Office a lot, the Pro version is worth considering.
Our Recommendation