8 Best AI Apps for iPhone in 2024 [Free & Paid]

The impact of artificial intelligence tech on our lives is growing by the day. While there are valid concerns about the implications of AI, the great news is that you can already take advantage of AI today to boost your productivity, automate tedious and time-consuming tasks, or simply have fun and express your imagination.  In this article, we are featuring the best AI apps for iPhone. All of the apps featured in this article can be used for free, although most have premium features that you need to pay to access.Let’s get right into our list of the best AI applications for iPhone users. We’ve made sure to include a diverse selection AI apps, including general-purpose AI chatbots, image generators, as well as apps focused on education and productivity. Launched by OpenAI, ChatGPT is an application that has had a huge impact on the growing interest in AI ever since its introduction to the market in November 2022. ChatGPT is a chatbot that uses the GPT (generative pre-trained transformer) family of large language models to interpret user prompts and generate responses.ChatGPT can perform an impressively diverse set of tasks, for example explaining and generating code snippets, meaningfully summarizing long texts or even generating poems and jokes. It’s worth mentioning that many of the AI apps on the market today are essentially wrappers around the GPT-3.5 and GPT-4 models powering ChatGPT. So, as long as you take some time with your prompts, you can achieve the same results with ChatGPT as you would be able to achieve with many other AI apps. In our opinion, this makes it the best free AI app for iPhone.Currently, users can access ChatGPT using the GPT-3.5 model for free. However, if you want to take advantage of the considerably more powerful GPT-4 model, OpenAI charges $20 for a monthly subscription to ChatGPT Plus. In addition to getting access to GPT-4, the subscription also allows you to access customized GPTs or even create your own GPT. The subscription also allows you to use the OpenAI’s DALL-E AI image generator.  Get the ChatGPT AppPerplexity.ai is a search engine that utilizes AI to answer user queries and provides the websites it used as the basis to generate its answer. The app indexes the web very frequently, so it is capable of providing up-to-date information. Depending on the type of search you need, you can use the straightforward “Quick Search” or the more advanced “Pro Search” mode. The free version of Perplexity.ai is powered by OpenAI’s GPT-3.5 model alongside a custom LLM created by Perplexity. Meanwhile, the Perplexity Pro subscription, which costs $20 per month or $200 per year, unlocks access to the GPT-4, Claude 3 and Mistral Large models. Users can choose which model to utilize for a particular query, as different LLMs are better suited for different tasks. In addition, Perplexity Pro subscribers get $5 worth of credits for Perplexity’s API per month. Perplexity.ai is one of the best AI applications for iPhone if you are frustrated with the results you’re getting from traditional search engines such as Google, and even the app’s free functionality can provide a lot of value.Get the Perplexity.ai AppOtter is an app that uses AI technology to transcribe audio conversations to text. The app offers features such as live transcription, the ability to identify speakers, summaries based on keywords, and sharing options for transcripts. Otter gives users the ability to either import audio files or record audio directly with the app.The app can be used to automatically take notes during meetings on Zoom, Google Meet and Microsoft Teams. Of course, Otter can also be used to take notes and summarize types of speech other than meetings. For example, you can also use Otter to summarize a lecture or an interview.The Otter app provides basic functionality for free, allowing you to transcribe up to 300 minutes of audio per month. For more advanced users, Otter offers three paid plans: Pro ($10/month), Business ($20/month) and Enterprise. It’s important to note that Otter is only designed to transcribe speech in English. While the app can sometimes have some issues with transcribing speakers that have a heavy accent, Otter’s transcription technology is quite impressive overall. Get the Otter AppSocratic is a learning app that’s powered by Google’s AI technology. The app is designed to support students at both the high school and university levels, and automatically finds online resources to help students understand and practice concepts. Socratic can assist students in both natural science and social science subjects – examples include math (algebra, geometry, trigonometry, calculus), chemistry, physics, world history and literature. For example, a student can take a picture of an equation, and Socratic can automatically transcribe it to text and help explain the problem. Students can also ask questions in the Socratic app and receive answers from online resources. Despite the app’s impressive capabilities, Google offers Socratic completely for free.Get the Socratic AppStarryai is an AI-powered image generator app that features two engines for generating images – Altair and Orion. The Starryai app generates images based either on text prompts provided by the users or from images uploaded into the app. If you have very specific requirements for your generated image, we recommend you upload an image so the AI has a more concrete foundation for generating an image based on your requirements. Alternatively, you can also use Starryai’s random prompt generator to get some unexpected ideas.After providing a text prompt or a source image, the user selects the style they want their image to be in. For example, this includes the styles of famous painters, photorealistic styles, 3D model styles and more.Users can also choose how many iterations Starryai will run before outputting the image. A higher number of iterations costs more credits, but tends to produce better quality images. Starryai can be used for free to generate up to 25 images per day. Meanwhile, the paid Pro Unlimited subscription allows users to generate an unlimited number of images. Get the Starryai AppWOMBO Dream is an app that uses AI to generate images called “dreams”. Users can generate images via the WOMBO Dream app using either text prompts or upload an image to serve as the foundation for the AI to work with. The app provides a diverse range of styles (120+), giving users plenty of room to express their creativty. WOMBO Dream can be used for free, although it also offers a paid subscription which costs $9.99 per month, or $89.99 per year.Premium users get access to exclusive art styles, benefit from faster generations, and have the option to output multiple images at a time. Users can also download a video showing the process of how their image was generated. Unfortunately, images generated without a premium subscription have a watermark, which somewhat limits the app’s functionality. Get the WOMBO Dream AppELSA Speak is an app designed to help non-native speakers improve their English. ELSA stands for English Language Speech Assistant, and the app allows users to record themselves speaking various English phrases, providing feedback to help them sound closer to native speakers.A great feature of ELSA Speak is that it can provide lessons tailored to the needs of the user. For example, the user can set up the app to prioritize language that’s commonly used in a certain profession. The ELSA Speak app provides more than 7,000 small lessons, which help users improve and provide a steady sense of accomplishment. The app can also be used to prepare for English language proficiency tests, for example IELTS and TOEFL. Get the ELSA Speak AppNotion is a powerful and versatile productivity application that allows users to create customized notes, to-do lists, bookmarks and much more. Any edits you make in your Notion app are seamlessly synchronized with other devices, so you can log in to your laptop or tablet and continue working on your projects. Although AI is not the focus of the app, Notion does offer AI-powered features which help users save time by automatically summarizing or generating content. For example, you can use Notion’s AI capabilities to automatically extract answers from your library of notes and research, improve your writing, or turn data into tidy tables. While Notion can be used for free, the AI add-on costs $8 per month (if billed annually) or $10 per month (if billed monthly). Get the Notion AppAlthough AI can’t quite do everything (yet), it can save you plenty of time and allow you to get more done faster. There’s a lot of value that you can get from AI apps on your iPhone for free, although we should point out that most AI apps require a payment if you want to access more advanced features. If you want to learn more about the topic of AI, make sure to check out our article highlighting the best AI stocks to buy.