11 Best AI Apps in 2025 (Free & Paid)

Generative AI is rapidly integrating into today’s world and has become a part of most things we do daily. You can use AI to write emails, edit photos, brainstorm ideas, do research, or create new content from scratch. But with hundreds of AI apps on the market, it can be difficult to find the one that best suits your needs. If you’re looking for the best AI apps that fit your individual or professional needs, we’ve got you covered!

In this article, we’ll explore what AI apps are and examine the flexible best AI apps that can adapt to every need.

Ready? Let’s dive in!

TL; DR

• An AI application is a tool that uses AI technologies like natural language processing, machine learning, and neural networks to complete tasks automatically. 
• AI applications provide advantages such as time-saving, high-quality output generation, and automation. 
• TextCortex, which offers an AI chatbot, knowledge base tool, web search, text/image/code generation capabilities, workflow integration, automation, and writing assistance features, is one of the best AI apps for both individual and professional tasks. 
• If you are looking for an AI app that will help you with text generation, summarization, translation, and research tasks, you can try ChatGPT. 
• If you are looking for an AI app that you can use mostly for everyday usage and entertainment purposes, Microsoft Copilot is the way to go. 

What is an AI Application?

AI applications are tools that use artificial intelligence technologies such as natural language processing, deep learning, and machine learning to perform tasks that usually require human input, such as email writing and image generation. The most popular example is OpenAI's ChatGPT, which responds to user prompts or questions using its large language models and parameters. ChatGPT scans large datasets from different sources on the internet to generate outputs to user queries. There are also AI applications that perform tasks such as image generation and photo editing, working with visual AI technologies like neural networks. Examples of these include Midjourney and Stable Diffusion.

Advantages of AI Applications

The advantages of AI applications vary depending on the features of the AI application you use and your area of use. For example, if you are using an AI application that supports textual output, you can automate tasks such as email writing, grammar and spelling fixes, summarization, and translation, and save time. For example, using ZenoChat by TextCortex, you can perform tasks such as email writing, product description creation, and product documentation template drafting, and ensure that your enterprise operates much more efficiently.

If you are using an AI application that offers image generation features, you can perform tasks such as graphic design, logo design, fictional character design, etc. You can also visualize your textual data and make it easier to understand with AI applications such as ZenoChat and ChatGPT that support both text and visual output and input.

Best AI Applications

Artificial intelligence technology is used in different sectors and for different purposes. Some AI applications focus on text generation and data analysis, while others focus on image or video generation. In short, AI applications generate outputs according to the purpose they are designed for. However, as with every technological product, there are high-quality products that stand out from the rest in AI applications. Let’s take a look at the best AI applications together.

1. TextCortex AI

TextCortex is a knowledge base tool, AI chatbot, workflow automation tool and writing assistant in a single platform; Its purpose is to collect your information and enable you to use it to generate outputs for your specific needs.

TextCortex offers customizable knowledge bases, a web search feature, multiple LLMs such as GPT-4o and Claude 3.5 Sonnet, and conversational AI that works in sync with internal data and text/code/image generation to support you in multiple ways. Using TextCortex's advanced AI capabilities, you can complete both your individual and company tasks much more quickly and easily and boost your efficiency.

TextCortex Knowledge Bases

TextCortex comes with a knowledge base, a method that you can upload or connect your company’s internal data to. Our knowledge base allows you to generate valuable insights or automate repetitive tasks with your company’s internal data. With our knowledge base, you can create separate folders to categorize your internal data by department or project and start output generation by selecting a specific folder.

ZenoChat – The Multifunctional Conversational AI

TextCortex comes with an all-in-one conversational AI called ZenoChat. ZenoChat is an AI chatbot that can work integrated with our knowledge base and serve its users on 30,000+ websites and apps. Using your internal data, you can generate output and perform tasks such as email writing, project document templates, and data analysis via ZenoChat.

Moreover, ZenoChat can generate not only textual but also visual and code output. ZenoChat offers state-of-the-art image generator models such as DALL-E 3, Stable Diffusion 3, and FLUX to assist users with their image generation tasks. These features make ZenoChat a versatile tool that can integrate any sort of company’s workflow.

Key Features

• Customizable Knowledge Bases: TextCortex provides enterprise users with knowledge bases that can generate and analyze outputs from company data.
• ZenoChat: TextCortex provides its users with ZenoChat, a multifunctional conversational AI that enables them to complete tasks in a conversational format.
• Seamless Integrations: TextCortex offers 30,000+ integrations, including popular apps like Google Drive, Gmail, Pages, YouTube, and Instagram.
• Writing Assistant: TextCortex offers features like tone changer, paraphraser, and grammar & spelling fix to enhance users’ writing tasks.

2. OpenAI’s ChatGPT

When talking about the most popular and best AI applications, it is necessary to mention the ChatGPT model of OpenAI, the pioneer of generative AI. OpenAI developed the ChatGPT model with a visionary perspective, aiming to automate repetitive tasks and generate textual output from scratch in seconds. The ChatGPT model has adapted to developing AI technologies and received upgrades such as web search and image generation.

The biggest difference between ChatGPT and other AI tools is that it does not offer specific solutions. For example, if you want to generate product management templates with ChatGPT, you need to give it a detailed prompt and add information and parameters to your prompt. That makes ChatGPT an AI app that requires extra steps to perform specific tasks.

Key Features

• Advanced LLM: ChatGPT offers its users the GPT-4o model, one of the highest-performing LLMs.
• Image Input: ChatGPT can analyze textual and visual inputs and generate output.
• Integrations: You can integrate the ChatGPT API into your own company and build custom AI assistants.

3. Microsoft Copilot

Another AI app that quickly integrates AI technology and delivers it to end-users as usable features and apps is Microsoft Copilot. Microsoft Copilot emerged as a result of closely following the development of AI technology and the goal of integrating it into users' daily use.

Users can ask any questions to Microsoft Copilot, and it immediately finds the most relevant online sources to generate custom answers. Moreover, you can summarize text, complete data analysis tasks, and generate images with Microsoft Copilot. Microsoft Copilot offers its users the DALL-E 3-powered AI art generation feature. Using this feature, you can generate images for individual or professional purposes.

Key Features

• Everyday Use: You can use Microsoft Copilot to complete everyday tasks, such as setting reminders.
• Conversational Research: You can examine all internet data in conversational format through Microsoft Copilot.
• Image Generation: Microsoft Copilot offers its users a DALL-E 3 powered AI image generator.

4. Google Assistant

Google Assistant is designed to automate everyday tasks, understand voice and text inputs, and improve the quality of daily life of the user. Google Assistant works integrated with Gemini, its LLM. You can utilize Google Assistant to create emails, draft articles, outline project proposals, fix grammar & spelling, expand paragraphs, or summarize given text. Moreover, you can integrate Google Assistant into your daily life and manage all your smart items from a single platform. For example, you can order your favourite coffee or adjust the lighting of your living room for watching a movie using Google Assistant.

Key Features

• Manage Your Smart Goods: With Google Assistant, you can control lights, thermostats, smart devices, and your apps via voice commands.
• Gemini AI: Gemini is an AI assistant that you can use to complete both professional and individual tasks. You can use Gemini AI to translate your texts, generate new content, or enhance your existing content.
• Voice Command: One of the biggest advantages of Gemini AI is that it can be used via voice commands. If you are looking for a more practical and faster way to use LLM than typing, Google Gemini is an AI assistant you should try.

5. FaceApp

FaceApp is a popular selfie editor that uses AI technology to edit photos and turn them into social media compatible such as Instagram and X (formerly Twitter), through over 60 filters, backgrounds, and other effects. 

With FaceApp, you can use AI for your everyday photo editing tasks and create top-notch images without spending hours editing. With FaceApp’s AI, you can change your hair colour or even integrate new hairstyles into your photos. Last but not least, you can give yourself a total makeover, soften the appearance of blemishes or change your eye colour.

Key Features

• Makeup: You can edit your photos to add any makeup to yourself and change your selfie as you want.
• Photo Editing: You don't have to spend hours editing your photos with FaceApp! With FaceApp's AI, you can change your hair color, hair style, and eye color, and remove wrinkles or blemishes in your photos.
• Become a Fictional Character: With FaceApp, you can easily add your face to popular movies or photos!

6. Lensa

Lensa is an AI-powered photo editor tool with lots of filters, effects, and backgrounds to make your photos better. With Lensa, you can rid your eyebags, blur the background, or change your eye color. Lensa offers plenty of filters that can change the mood of your photos from cyberpunk to dreamlike.

Key Features

• Erase: Wipe out photobombers and unwanted images from your pictures by selecting the object and tapping the Erase button. Don’t waste your time on those basic tasks on photo editing tools. 
• AI Avatars: If you want to generate realistic avatars that look like you, you can use Lensa’s cutting-edge AI feature. 
• Impression: With Lensa, you can smooth your skin in your photos, get rid of blemishes like acne, and change your hairstyle or eye color. 

7. Perplexity

Perplexity AI offers its users an AI-powered search engine and AI chatbot experience. Using Perplexity, you can access accurate and high-quality information on any topic without spending hours researching. Thus, you can speed up your research process, direct your focus to important tasks, and increase your performance.

Perplexity AI offers a knowledge base feature where you can upload your own documents and data. Simply click the Sources button at the bottom left of the chat box and start adding folders. Then, you can select the folder containing the documents you uploaded and have Perplexity quickly recall the internal data you are looking for.

Key Features

• AI-powered Search Engine: Unlike traditional search engines, Perplexity AI can understand the user's intent and provide the necessary information to users. 
• Org Files: You can create your libraries and search for information from them via Perplexity AI. 
• AI Chatbot: In addition to search engine features, Perplexity AI offers an AI chatbot experience where you can receive information in a conversational format. 

8. StarryAI

StarryAI uses generative AI and AI image generators to create AI art for free in real time. With StarryAI, you can use your imagination to create the images you want without needing any painting training. StarryAI uses text-to-image technology, which means you can write anything you want to draw and let StarryAI paint it for you, such as cyberpunk cats, fantastic backgrounds, or hyper realistic landscapes.

Key Features

• Text-to-image: To generate images with StarryAI, all you need to do is type a detailed prompt that describes the image you have in mind.
• Image Variations: You can generate images in whatever style you want, from hyper realistic portraits to anime-like character designs.
• Portraits: StarryAI offers a feature that lets you create realistic or abstract portraits that reflect emotions and personality.

9. Midjourney

Midjourney is an AI image generator that utilizes neural networks, natural language processing, and deep learning to generate artistic images from text or images. With Midjourney, you can turn your textual or image inputs into new and unique image outputs. Moreover, Midjourney offers parameters for its users to use different styles. Midjourney generates 4 different styles of images as output to user prompts. You can select one of these images and generate variations of it or increase its resolution.

Key Features

• Flexible Outputs: You can generate different types of visual outputs with Midjourney, such as realistic, abstract, and anime-like.
• Parameters: To use Midjourney with maximum efficiency, you can use its input parameters and generate enhanced variations of the image in your mind.
• Image-to-image: Midjourney can generate visual output using not only textual but also image inputs. You can use Midjourney to create visuals based on your photos or other images.

10. Grammarly AI

Grammarly has long been a tool for enhancing its users’ writing and giving scores to their texts. Grammarly offers AI-powered suggestions and error reporting by adapting to the developing generative AI technology. Moreover, Grammarly AI can read your entire paragraph and change a few words to make it error-free and more readable. If you are looking for an AI tool to help you with your academic writing, you can consider using Grammarly AI.

Key Features

• Grammar & Spelling Fix: Grammarly AI uses Natural Language Processing (NLP) technology to find grammar errors in your words and sentences and offer suggestions to fix them. 
• Paraphrase: Grammarly AI reads and analyzes your entire paragraph, changing a few words and suffixes or completely rewriting your paragraph to make it error-free. 
• Tone Changer: Grammarly AI reads your text and presents a graph showing the percentage of tone of voice used.

11. Claude AI by Anthropic

Claude AI is an AI assistant developed by Anthropic and uses Claude 3.5, one of the most advanced Large Language Model families. With Claude AI, you can complete your text generation tasks such as email writing, paraphrasing, text expanding, and summarizing. Claude AI offers a context window of a minimum of 200K tokens and a maximum of 1 million tokens. Thanks to Claude AI's large context window, you can generate output or analyze your data using data equal to hundreds of pages.

Key Features

• Advanced LLM: Claude AI offers its users one of the most advanced LLM models, the Claude 3.5 family.
• Large Context Window: Claude AI is the AI ​​assistant with the largest context window on the market.
• Natural Language Capabilities: With Claude AI, you can quickly complete text-based tasks such as email writing, data analysis, and summarization.

Frequently Asked Questions

What is the best AI app currently?

The best AI app you can use for your enterprise and knowledge management tasks is currently TextCortex AI, with its multiple LLMs, web search, customizable knowledge bases, and automation capabilities. TextCortex offers text, code, and image generation, enabling it to integrate into any workflow and use case.

Which AI program is best?

Although the best AI program may vary depending on your intended use and specific needs, AI programs that offer unique features and tools for every user are:

• TextCortex AI
• ChatGPT
• Microsoft Copilot
• Google Assistant
• Claude AI

Is ChatGPT still the best AI?

ChatGPT, the pioneer of generative AI, is one of the best AIs with features like web search and text generation. However, when it comes to generating personalized or specific output via ChatGPT, you need to deal with a detailed prompting process. If you are looking for the best AI that focuses on enterprise and company needs, with its knowledge bases, web search, writing assistant, and workflow automation, TextCortex is the way to go.