Comparison

Rytability vs Letterly AI

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Rytability

This AI-powered writing companion enhances clarity and confidence for individuals with dyslexia and other writing challenges. It offers on-device processing to improve spelling, grammar, and sentence structure while preserving the user's authentic voice. The tool supports learning and independence without compromising privacy.

Highlights
  • AI-powered writing improvement
  • One-touch summarization
  • Highlighted edits with explanations
  • Unlimited AI usage
  • Fully offline functionality
  • Zero data collection
  • Speech-to-text transcription
  • Read aloud functionality
Features
Read full description

One App. A World of Abilities. Why use a dozen apps when one can do it all? Meet Rytability, an AI-powered toolkit to capture ideas, take notes, improve writing, understand information, study smarter, and create your best work. AI notes, dictation, handwriting, grammar and spelling support, Read Aloud, transcription, PDFs, flashcards, quizzes, study guides, podcasts, and more, in one beautifully integrated app. Skip app switching, copying between tools, and disconnected workflows. Your abilities work together. CAPTURE IDEAS, HOWEVER THEY COME TO YOU Great ideas don't always arrive typed. • AI Dictation: Speak naturally to turn thoughts into clear text. • Magic Handwriting: Write with your finger or Apple Pencil. Clean up handwriting, improve spelling, grammar, and punctuation, or convert it to typed text. • AI Meeting Notes: Capture conversations, transcribe meetings, and create useful notes. • Audio Transcription: Turn recordings into usable text. • Scan Text: Capture printed text, handwriting, whiteboards, and documents with your camera. • Import & Paste: Bring in text, audio, and PDFs. UNDERSTAND MORE. READ YOUR WAY. Understand information your way. • Read Aloud: Listen to writing, notes, articles, and documents with natural-sounding voices. • Multilingual Reading: Listen across languages with seamless transitions and pronunciation. • Summarize: Condense lengthy information into clear summaries. • Ask Questions: Explore material, find key details, and deepen understanding. • Personalized Reading: Adjust font size, typeface, text and background colors, letter and line spacing, and line focus. • Explain Changes: Understand corrections and learn from improvements. TURN YOUR NOTES INTO KNOWLEDGE Turn your notes, documents, and ideas into learning resources. • Study Guides: Turn information into structured study materials. • Flashcards: Reinforce knowledge and improve recall. • Quizzes: Test understanding and see what to review. • Podcasts: Turn your material into audio learning you can take anywhere. CREATE WITH CONFIDENCE Your ideas. Your voice. Your best work. • Auto-Improve: Instantly correct spelling, grammar, and punctuation while preserving your meaning. • Writing Assistance: Clarify writing so your ideas come through. • Edit & Iterate: Develop thoughts, explore ideas, and improve your work. • PDF Support: Work directly with PDFs and export finished work as PDFs. From emails and essays to presentations and projects, Rytability removes barriers between what you think and what you can communicate. EVERYTHING ORGANIZED. EVERYTHING CONNECTED. Keep ideas together with projects, searchable cards, custom names, hashtags, color-coded highlights, and version history. Capture once, then read, question, improve, learn from, organize, and share it, all within Rytability. POWERFUL AI. RADICALLY PRIVATE. Your thinking is personal. Your information should stay that way. Rytability keeps everything private, with AI that protects your privacy and security. • No usernames or passwords. • No tracking or data collection. • Works offline without an internet connection. • Optional private iCloud synchronization. Powerful AI. Complete privacy. No compromises. BUILT FOR THE WAY YOU THINK Everyone thinks differently. Embrace your way. For students, professionals, creative thinkers, people with dyslexia or ADHD, English language learners, and anyone with more ideas than time, work in the way that works best for you. Unlike AI tools that do the work for you, Rytability's philosophy is simple: Technology should strengthen human thinking, not replace it. Capture, develop, understand, organize, and express your own ideas. Writing deepens thinking. Practice strengthens thinking. Your ideas should always remain yours. LET THE WORLD SEE WHAT YOU'RE CAPABLE OF. Remove barriers to your full potential. Capture more. Understand more. Learn more. Create more. All with one app. Download Rytability and start your free trial.

About

Letterly AI

Features
Read full description

Letterly AI is an AI-powered writing assistant that helps you rewrite text into the perfect tone for any situation. Whether you're writing business emails, Japanese Keigo, chat messages, social media posts, or multilingual content, Letterly AI makes your writing natural, professional, and easy to understand. ### Key Features • Rewrite text into polite, business, casual, or friendly tones • Convert Japanese into natural Keigo • Improve grammar, clarity, and readability • Generate and refine business emails • Translate and rewrite content in multiple languages • Create natural responses for chats and messaging apps ### Perfect For • Business professionals • Students • Japanese language learners • Customer support teams • Sales representatives • Freelancers • Anyone who wants to communicate more effectively ### Use Letterly AI For • Business emails • LINE messages • Slack conversations • Social media posts • Daily communication • Multilingual writing Write naturally. Communicate confidently. Express yourself with Letterly AI.

Screenshots

Rytability4 screens
Letterly AI3 screens

Verdict

The call

The clearest difference is in-app purchases: Letterly AI at none against Rytability's 2. Letterly AI also leads on iOS requirement (15.1 vs 18.0). Rytability's advantage is update cadence (every 11 days vs every 2 months). On price, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Rytability sells 2 in-app purchases, starting at $8.99 per month. Letterly AI asks for nothing beyond the download.

UpkeepUpdate frequency

Rytability ships an update every 11 days, Letterly AI every 2 months. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

Scorecard3 real differences · 7 level
Rytability versus Letterly AI: the parameters behind the verdict, then further details
ParameterRytabilityLetterly AI
PriceFreeFree
Rating5.0 (7 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings7 — better—
Update frequencyEvery 11 days — betterEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree—
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS18.015.1 — better
Further details — not scored
Size2.3 GB20 MB
Age rating4+4+
DeveloperRytech Labs LLCYing Liu

In-app purchases

2 purchases

Rytability

Subscriptions2
  • Rytability Monthly7 Days trial$8.991 Month
  • Rytability Yearly$89.991 Year
None

Letterly AI

No in-app purchases

Questions

Is Rytability free?
Rytability is free to download, with in-app purchases available.
Is Letterly AI free?
Letterly AI is free to download, with no in-app purchases.
Do Rytability or Letterly AI have ads?
Neither Rytability nor Letterly AI shows ads.
Which is updated more often, Rytability or Letterly AI?
Rytability ships an update every 11 days, and Letterly AI every 2 months. Most recently, Rytability was updated on October 28, 2026 and Letterly AI on October 24, 2026.

Other comparisons