Compare the Top Natural Language Processing Apps for iPhone as of April 2025

What are Natural Language Processing Apps for iPhone?

Natural language processing (NLP) software analyzes both written and spoken human languages and interprets them for translation, deep learning and automation purposes. Natural language processing software may also include natural language understanding (NLU) capabilities. Compare and read user reviews of the best Natural Language Processing apps for iPhone currently available using the table below. This list is updated regularly.

  • 1
    LM-Kit.NET
    The Natural Language Processing component offers a robust set of on-device tools designed for .NET applications. It processes large volumes of text data securely, eliminating the need for cloud-based services and ensuring sensitive information remains confidential. This approach transforms unstructured text into actionable insights, making it ideal for applications where data privacy and speed are paramount. Key functionalities include multilingual sentiment analysis, emotion and sarcasm detection, custom text classification, keyword extraction, and semantic text embeddings. These capabilities help interpret complex language patterns and extract nuanced information, enabling developers to build more intelligent and responsive applications across diverse contexts and industries. Performance is enhanced through dynamic sampling technology that leverages both CPU and GPU resources for optimal processing efficiency.
    Starting Price: Free (Community) or $1000/year
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  • 2
    Quaeris

    Quaeris

    Quaeris, Inc.

    Align analytics to your everyday business workflows. Your business relies on people, data and documents, but the process of using them is broken. QuaerisAI enables seamless downstream workflows across your People, Documents and Data Assets. Use natural language search on data, documents and collaborate in private or within Communities - all in one platform! QuaerisAI offers time savings of at-least 30 minutes to an hour/day/resource - imagine the productivity enhancements you give your users without the expense of buying and consolidating a bunch of AI tools. Quaeris can be rolled out to team of 10s or 1000s of users seamlessly within a matter of days - without much need of IT, and that is why IT & data teams love us!
    Starting Price: $100 per month
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  • 3
    ChatGPT

    ChatGPT

    OpenAI

    ChatGPT is a language model developed by OpenAI. It has been trained on a diverse range of internet text, allowing it to generate human-like responses to a variety of prompts. ChatGPT can be used for various natural language processing tasks, such as question answering, conversation, and text generation. ChatGPT is a pre-trained language model that uses deep learning algorithms to generate text. It was trained on a large corpus of text data, allowing it to generate human-like responses to a wide range of prompts. The model has a transformer architecture, which has been shown to be effective in many NLP tasks. In addition to generating text, ChatGPT can also be fine-tuned for specific NLP tasks such as question answering, text classification, and language translation. This allows developers to build powerful NLP applications that can perform specific tasks more accurately. ChatGPT can also process and generate code.
    Starting Price: Free
  • 4
    Claude

    Claude

    Anthropic

    Claude is an artificial intelligence large language model that can process and generate human-like text. Anthropic is an AI safety and research company that’s working to build reliable, interpretable, and steerable AI systems. Large, general systems of today can have significant benefits, but can also be unpredictable, unreliable, and opaque: our goal is to make progress on these issues. For now, we’re primarily focused on research towards these goals; down the road, we foresee many opportunities for our work to create value commercially and for public benefit.
    Starting Price: Free
  • 5
    ChatSonic

    ChatSonic

    Writesonic

    A revolutionary AI like ChatGPT - ChatSonic, the conversational AI chatbot addresses the limitations of ChatGPT, turning out to be the best Chat GPT alternative. Improving upon the limitations of Chat GPT and giving conversational AI wings with ChatSonic. ChatSonic is trained and powered by ‘Google Search’ to chat with you on current events and trending topics in real-time. ChatSonic - ChatGPT alternative can help generate stunning digital AI artwork for your social media posts and digital campaigns. A personal assistant you can customize and use whether you are solving a math problem, preparing for an interview, sorting relationship problems or helping you stay fit. Add the ChatSonic ChatGPT Chrome extension to get content suggestions from anywhere on the internet. ChatSonic understands voice commands and responds just like Siri / Google Assistant.
    Starting Price: $12.67 per month
  • 6
    GPT-4o

    GPT-4o

    OpenAI

    GPT-4o (“o” for “omni”) is a step towards much more natural human-computer interaction—it accepts as input any combination of text, audio, image, and video and generates any combination of text, audio, and image outputs. It can respond to audio inputs in as little as 232 milliseconds, with an average of 320 milliseconds, which is similar to human response time (opens in a new window) in a conversation. It matches GPT-4 Turbo performance on text in English and code, with significant improvement on text in non-English languages, while also being much faster and 50% cheaper in the API. GPT-4o is especially better at vision and audio understanding compared to existing models.
    Starting Price: $5.00 / 1M tokens
  • 7
    ChatGPT Plus
    We’ve trained a model called ChatGPT which interacts in a conversational way. The dialogue format makes it possible for ChatGPT to answer followup questions, admit its mistakes, challenge incorrect premises, and reject inappropriate requests. ChatGPT is a sibling model to InstructGPT, which is trained to follow an instruction in a prompt and provide a detailed response. ChatGPT Plus is a subscription plan for ChatGPT a conversational AI. ChatGPT Plus costs $20/month, and subscribers will receive a number of benefits: - General access to ChatGPT, even during peak times - Faster response times - GPT-4 access - ChatGPT plugins - Web-browsing with ChatGPT - Priority access to new features and improvements ChatGPT Plus is available to customers in the United States, and we will begin the process of inviting people from our waitlist over the coming weeks. We plan to expand access and support to additional countries and regions soon.
    Starting Price: $20 per month
  • 8
    ChatGPT Pro
    As AI becomes more advanced, it will solve increasingly complex and critical problems. It also takes significantly more compute to power these capabilities. ChatGPT Pro is a $200 monthly plan that enables scaled access to the best of OpenAI’s models and tools. This plan includes unlimited access to our smartest model, OpenAI o1, as well as to o1-mini, GPT-4o, and Advanced Voice. It also includes o1 pro mode, a version of o1 that uses more compute to think harder and provide even better answers to the hardest problems. In the future, we expect to add more powerful, compute-intensive productivity features to this plan. ChatGPT Pro provides access to a version of our most intelligent model that thinks longer for the most reliable responses. In evaluations from external expert testers, o1 pro mode produces more reliably accurate and comprehensive responses, especially in areas like data science, programming, and case law analysis.
    Starting Price: $200/month
  • 9
    Claude Pro

    Claude Pro

    Anthropic

    Claude Pro is an advanced large language model designed to handle complex tasks while maintaining a friendly, accessible demeanor. Trained on extensive, high-quality data, it excels at understanding context, interpreting subtle nuances, and producing well-structured, coherent responses across a wide range of topics. By leveraging robust reasoning capabilities and a refined knowledge base, Claude Pro can draft detailed reports, compose creative content, summarize lengthy documents, and even assist in coding tasks. Its adaptive algorithms continuously improve its ability to learn from feedback, ensuring that its output remains accurate, reliable, and helpful. Whether serving professionals seeking expert support or individuals looking for quick, informative answers, Claude Pro delivers a versatile and productive conversational experience.
    Starting Price: $18/month
  • 10
    Claude Max

    Claude Max

    Anthropic

    The Max Plan from Anthropic's Claude platform is designed for users who require extended access and higher usage limits for their AI-powered collaboration. Ideal for frequent and demanding tasks, the Max Plan offers up to 20 times higher usage than the standard Pro plan. With flexible usage levels, users can select the plan that fits their needs—whether they need additional usage for complex data, large documents, or extended conversations. The Max Plan also includes priority access to new features and models, ensuring users always have the latest tools at their disposal.
    Starting Price: $100/month
  • 11
    ChatGPT Enterprise
    Enterprise-grade security & privacy and the most powerful version of ChatGPT yet. 1. Customer prompts or data are not used for training models 2. Data encryption at rest (AES-256) and in transit (TLS 1.2+) 3. SOC 2 compliant 4. Dedicated admin console and easy bulk member management 5. SSO and Domain Verification 6. Analytics dashboard to understand usage 7. Unlimited, high-speed access to GPT-4 and Advanced Data Analysis* 8. 32k token context windows for 4X longer inputs and memory 9. Shareable chat templates for your company to collaborate
    Starting Price: $60/user/month
  • 12
    Arria NLG Studio
    Arria NLG Studio is an Artificial Intelligence (AI) solution developed by Arria NLG for use by companies both in the enterprise market as well as small and medium size businesses. The Arria NLG Studio platform empowers companies to replicate the human process of expertly analyzing and communicating data insights in language humans can quickly understand. Arria’s software is used to generate insights in language such as financial analysists, spotting trends, identifying problems, and forecasting what's likely to happen next. Using Arria's patented NLG technology, the Company has created mulitiple SaaS-based solutions which provide industry specific reports with relevant details, in seconds. This is the next-generation of business intelligence and data reporting platforms. Arria NLG Studio offers API access and can be easily integrated with any software platform.
  • 13
    XpertRule

    XpertRule

    XpertRule Software

    We are a software business, founded by AI and engineering pioneers, that creates exceptional technology, to solve the most complex process challenges. We want to help create more sustainable businesses, with improved performance against all the metrics that matter - cost, quality, delivery and human experience. By deploying our advanced decision intelligence products - viabl.ai and XpertFactory - we allow organisations to harness the power of their two most valuable assets – the expertise of their people and the predictive analytics in their data. In short, we exist to help the world make better decisions.
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