Best Natural Language Processing App

0+ iOS apps curated and reviewed

4.6 avg rating
20 free apps
Updated June 2026

Out of 0+ natural language processing app on iOS, 20 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Compare top Natural Language Processing App (June 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1NaturalReader - Text To SpeechNaturalReader - Text To SpeechFree4.6★ (8.8K)NoYesSep 2026
2Peech: Text to Speech ReaderPeech: Text to Speech ReaderFree4.4★ (8.4K)NoYesSep 2026
3Quillbot-AI Writing & KeyboardQuillbot-AI Writing & KeyboardFree4.7★ (3K)NoYesSep 2026
4Wispr Flow: AI Voice KeyboardWispr Flow: AI Voice KeyboardFree4.8★ (16K)NoYesSep 2026
5Grammarly: AI Keyboard & VoiceGrammarly: AI Keyboard & VoiceFree4.7★ (223K)NoYesSep 2026
6AI Chatbot - Ask Me AnythingAI Chatbot - Ask Me AnythingFree4.6★ (16K)YesYesSep 2026
7Chatbot App: AI AssistantChatbot App: AI AssistantFree4.2★ (4.4K)NoYesSep 2026
8Voice Dream - Natural ReaderVoice Dream - Natural ReaderFree4.5★ (14K)YesYesSep 2026

Top Picks for Natural Language Processing App

NaturalReader - Text To Speech#1

NaturalReader - Text To Speech by NaturalSoft Limited

#1 Popular TTS APP
Editor's Choice
📊 Productivity
4.6😊(8.8K ratings)
FreeIn-App Purchases
NaturalReader - Text To Speech screenshot 1
NaturalReader - Text To Speech screenshot 2
NaturalReader - Text To Speech screenshot 3
NaturalReader - Text To Speech screenshot 4
NaturalReader - Text To Speech screenshot 5
NaturalReader - Text To Speech screenshot 6

This app transforms text from various sources, including documents, web pages, and images, into natural-sounding spoken audio. It offers a wide selection of AI voices and languages, with features designed to enhance the listening experience and assist users with reading difficulties.

What We Love

  • 👍 Great app to save time
  • 🚀 Helps with reading and comprehension
  • 💡 Useful for dyslexic users
  • 👍 Excellent text-to-speech quality
  • 👍 Convenient for multitasking and studying
  • 👍 Reliable and user-friendly

Room to Improve

  • 💰 Subscription is considered expensive
  • 🐛 Occasional mispronunciations and pausing issues
  • 🐛 Compatibility issues with certain document formats
  • 🐛 Syncing and account management problems
  • 🐛 Frequent crashes and freezes
Peech: Text to Speech Reader#2

Peech: Text to Speech Reader by Dopefin Limited

Listen to Books, PDFs and Web
Strong Contender
📊 Productivity
4.4😐(8.4K ratings)
FreeIn-App Purchases
Peech: Text to Speech Reader screenshot 1
Peech: Text to Speech Reader screenshot 2
Peech: Text to Speech Reader screenshot 3
Peech: Text to Speech Reader screenshot 4
Peech: Text to Speech Reader screenshot 5
Peech: Text to Speech Reader screenshot 6

Transform any text into lifelike audiobooks with an AI-powered reading companion. Scan physical books, PDFs, or web articles to listen on the go, with natural-sounding voices and high-speed playback. Supports over 60 languages.

What We Love

  • 🚀 Perfect for scanning books and having them read aloud
  • 🚀 Supports multiple languages
  • 🚀 Allows following along with highlighted text
  • 👍 Helpful for students and university
  • 👍 Useful for multitasking and productivity

Room to Improve

  • 🐛 Issues with organizing files and folders
  • 🐛 No option to switch between old and new voices
  • 🐛 Unable to retrieve deleted files
  • 💰 Expensive subscription plans
  • 💰 Unclear pricing structure
  • 🐛 Glitches, crashes, and errors
  • 🐛 Inaccurate text-to-speech
  • 🐛 Lack of customization options
Quillbot-AI Writing & Keyboard#3

Quillbot-AI Writing & Keyboard by QuillBot, a Learneo Inc. business

Paraphrase & Grammar Check App
Worth Considering
📊 Productivity
4.7😐(3K ratings)
FreeIn-App Purchases
Quillbot-AI Writing & Keyboard screenshot 1
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Quillbot-AI Writing & Keyboard screenshot 6

Enhance your writing with an AI-powered assistant that offers paraphrasing, grammar correction, and translation. Generate ideas, detect AI-written content, and create images directly from your device. Improve communication and overcome writer's block with this versatile tool.

What We Love

  • 🚀 Helpful paraphrasing tool
  • 👍 Convenient keyboard integration
  • 💡 Useful for writing and editing
  • 👍 Improves writing quality

Room to Improve

  • 🐛 Buggy keyboard and app performance
  • 🔒 Difficult to cancel subscription
  • 👎 Limited features compared to website
  • 👎 Inaccurate grammar and paraphrasing

More Natural Language Processing App apps to explore

FAQ about Natural Language Processing App

What is the best natural language processing app for iPhone?
NaturalReader - Text To Speech tops our natural language processing app ranking as of June 2026, with a 4.6-star average from 8.8K App Store ratings, and it's free to download.
Yes — 20 of the top natural language processing app we rank are free to download, including NaturalReader - Text To Speech and Peech: Text to Speech Reader.
NaturalReader - Text To Speech has no ads and offers in-app purchases, according to its App Store listing as of June 2026.
NaturalReader is a text-to-speech application that reads aloud various types of text content. It can process documents like PDFs, online articles, cloud files, and even text captured from images using your device's camera. The app aims to make reading more accessible and convenient by converting written words into spoken audio.
Key features include a camera scanner for converting physical text to audio, a wide selection of over 200 AI-powered voices across more than 99 languages and dialects, and the ability to convert text into downloadable MP3 files. It also offers OCR text recognition, AI text filtering to remove distractions, and customizable options like reading speed, voice selection, and dyslexia-friendly fonts.