Compare Microsoft Copilot, Google Gemini, ChatGPT, and DeepSeek AI: Which App is the Best?
A helpful AI assistant that can chat, create images, and work with Microsoft Office apps. It is a good alternative to ChatGPT. | Gemini is Google’s next-generation AI assistant, offering creative tools, productivity features, and deep integration with Google services. | The official ChatGPT mobile app brings OpenAI's powerful AI assistant to your pocket with voice conversations, image generation, and seamless cross-device sync. | DeepSeek AI is a completely free AI assistant powered by a 600B+ parameter model, offering high-quality responses for coding, writing, and general questions without any subscription fees or usage limits. | |||||||||
| Key Features A summary of the most important features offered by each app. |
|
|
|
| ||||||||
| Our Rating Prod Apps's expert review score for each app, based on hands-on testing and research. | 8.5 Winner in this category | 8.2 | 8.1 | 7.8 | ||||||||
| Total users Total active users across all major browsers: Chrome, Edge, Firefox, and Safari. | 0 | 0 | 0 | 0 | ||||||||
| Total ratings Total number of user ratings received across all supported browsers. | 0 | 0 | 0 | 0 | ||||||||
| Average rating Average user rating across all browsers, calculated from available store ratings. | — ⭐ | — ⭐ | — ⭐ | — ⭐ | ||||||||
| Entry Level Price The minimum price required to start using the app. "Free" means a free tier is available. | Free | Free | Free | Free | ||||||||
| Android User rating and stats for the app on Android browser. |  Downloads | Downloads | Downloads | Downloads | ||||||||
| iOS User rating and stats for the app on iOS browser. |  | | | | ||||||||
| Features Prod Apps's expert score for the 'Features' aspect of each app. | 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:
| 7.8 Gemini is packed with things you can do:
If you pay for Pro or Ultra, you get even more, like video generation and deep research. But not everything works everywhere. Some features, like video-to-talk, didn’t show up on all our devices. And if you’re used to the old Google Assistant, you might miss a few things. Still, the basics work well and Gemini keeps getting better. Just check if the features you want are available for your phone. We think Gemini’s features are strong, but we’d like to see them work the same for everyone. | 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:
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:
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. Winner in this category | 8.5 DeepSeek AI has a solid set of features that make it a great alternative to paid AI assistants. It does more than just answer questions - it's like having a smart friend who can help with pretty much anything. Here's what we really liked: 1. The AI is really smart This thing is powered by a massive AI model with over 600 billion parameters. That's a lot of brainpower! It can handle complex questions, coding problems, and analytical tasks really well. 2. It shows its work Unlike most AI assistants, DeepSeek actually shows you how it thinks through problems. This is especially helpful when you're learning something new or debugging code. It breaks everything down step by step. 3. It's completely free No catch, no hidden fees, no premium tiers. You get unlimited access to this powerful AI without paying anything. That's pretty rare these days. 4. It works everywhere Whether you're on Android or iOS, the experience is the same. No need to worry about compatibility issues. The main downsides:
But for basic AI chat and coding help, it's really solid. We give features an 8.5 - it does the core stuff really well, but could use some extra bells and whistles. | ||||||||
| Performance Prod Apps's expert score for the 'Performance' aspect of each app. | 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. Winner in this category | 8.6 Gemini runs smoothly.
Some features aren’t on every device yet, but that’s not a speed issue. For what’s there, everything works as it should. | 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. | 6.5 Performance is a bit hit or miss with DeepSeek AI. When it's working well, it's great. When it's not, it can be frustrating. When everything is running smoothly, the app responds quickly and works without any lag. The AI processes your questions fast and gives good answers. It works consistently across different devices, so you get the same experience whether you're on Android or iOS. What works well:
The problem is that the servers seem to get overloaded a lot. You'll often see "server busy" messages, and sometimes the app just doesn't work at all. The recent drop in ratings from 4.2 to 3.98 stars suggests this is an ongoing issue. Common issues users report:
It's not the app's fault - it's more about server capacity and infrastructure. But it definitely affects how useful the app is. We give performance a 6.5 - good when it works, but the reliability issues are a real problem. | ||||||||
| Design Prod Apps's expert score for the 'Design' aspect of each app. | 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. | 8.5 Gemini looks and feels like a Google app. It’s clean, modern, and easy to use. We liked how simple it was to find what we needed. The colors and icons make it friendly, and everything loads fast. We didn’t run into any design problems, and most people seem to like how it looks. We do wish there were more ways to customize things, but overall, it’s a nice app to use. | 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:
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. Winner in this category | 7.5 The design is clean and straightforward. Nothing fancy, but it gets the job done without getting in your way. We like how simple it is to use. The chat interface looks familiar - just like any messaging app you've used before. The text is easy to read, and the buttons are where you'd expect them to be. It works well on both phones and tablets, and the layout adjusts nicely to different screen sizes. The app doesn't try to be flashy, which is actually kind of refreshing. What we liked:
The downside? It's pretty basic looking. No cool animations or fancy themes. Some people might find it boring, but we think it's actually better this way - less distraction, more focus on the AI responses. We give design a 7.5 - it's functional and clean, but could use a bit more personality. | ||||||||
| Value for Money Prod Apps's expert score for the 'Value for Money' aspect of each app. | 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:
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. | 8.3 Gemini gives you a lot for free:
The free version is generous, and the paid plans are fair for what you get. There are no hidden fees. | 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:
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. | 9.5 This is where DeepSeek AI really shines. It's completely free, and we mean completely free. No ads, no premium features, no hidden costs. What you get for free:
Compare this to ChatGPT Plus at $20/month or other paid AI services, and it's pretty amazing. You're getting similar quality for zero cost.
The only reason it's not a perfect 10 is that some people might want extra features like voice input, image generation, or plugins that you'd get with paid services. But for basic AI chat and coding help, you can't beat the value. We give value for money a 9.5 - it's basically free AI assistance that works really well. Winner in this category | ||||||||
| Ease of Use Prod Apps's expert score for the 'Ease of Use' aspect of each app. | 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:
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. Winner in this category | 8.0 Gemini is easy to get started with.
Some features only work on certain phones or in some countries, which can be confusing. We also wish you could talk to Gemini without always opening the app. But for most things, it’s simple and quick. | 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:
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. Winner in this category | 8.0 This might be the easiest AI assistant we've ever used. Seriously, you can start using it right away without any setup. Download the app, open it, and start typing. That's it. No account needed, no complicated settings to figure out. It works the same way on both Android and iOS, so if you switch phones, you won't have to relearn anything. What makes it so easy:
The only annoying thing is that sometimes you get "server busy" messages when the app is overloaded. And there's not much guidance for new users on how to get the best results. But overall, it's really user-friendly. We give ease of use an 8.0 - it's super simple to use, though the occasional server issues can be frustrating. | ||||||||
| Security & Privacy Prod Apps's expert score for the 'Security & Privacy' aspect of each app. | 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. | 8.2 Gemini uses Google’s usual privacy and security rules.
Like other Google apps, some data is collected to make things work better. If you care a lot about privacy, it’s worth reading the policy. We like that you can change some privacy settings, but this isn’t an offline or anonymous tool. Winner in this category | 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:
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. | 7.0 Privacy is a mixed bag with DeepSeek AI. On the plus side, you don't need an account to use it, which means they're not collecting your email or personal info. What we liked:
The downside? It's an AI assistant, so it has to process and store your conversations to work. They probably use your chats to improve their AI model, which is pretty standard for these apps. They don't sell your data to third parties, which is good. But you should know that your conversations are being processed and stored somewhere. It's more private than apps that require accounts and collect lots of personal info, but less private than apps that keep everything on your device. We give privacy a 7.0 - reasonable for an AI assistant, but not perfect. | ||||||||
| Conclusion A summary of our findings and final thoughts for each app. | 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. | We’ve used Gemini for a while and think it’s a smart, helpful assistant that keeps getting better. There are still a few things missing, but the basics are strong and new features show up often. If you want a free AI assistant that works well with Google apps and can help with lots of tasks, Gemini is a great pick. We’re excited to see how it improves in the future. | 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. | DeepSeek AI stands out as a compelling free alternative to paid AI assistants, offering impressive capabilities powered by its advanced 600B+ parameter model. While it has some performance and accuracy limitations, the fact that it's completely free makes it an excellent choice for users who want powerful AI assistance without the cost. The app particularly shines for coding and technical tasks, with many users praising its ability to provide detailed, step-by-step solutions. For those willing to work around occasional server issues and minor accuracy concerns, DeepSeek AI delivers exceptional value. | ||||||||
| Our Recommendation | ||||||||||||
