Comparison

Readray (formerly LilysAI) vs PDF보내요

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

Head to head
About

Readray (formerly LilysAI)

This app acts as an AI assistant for reading, summarizing and researching content from various sources like videos, articles, and documents. It organizes your reading material into a personal library and provides interactive insights, key points, and follow-up research.

Highlights
  • AI-powered summaries and key points
  • Interactive visuals and follow-up research
  • Captures screenshots and tables from content
  • Precise source citations for AI output
  • Organized library with folders and reading status
  • Cross-platform synchronization
Features
Read full description

On your phone, one share is all it takes. Share from YouTube, Safari or Files to Readray, and it lands in your library with a report on the way. Sources you read with the extension on your computer are right there on your phone. The AI lens for reading all day Readray reads everything you read on your computer together with you: papers, videos, textbooks, articles. It proactively hands you the key points, interactive visuals, and follow-up research on any missing context, so you fly through everything and miss nothing. ■ Anything you read on your computer, Readray reads with you Window switching, file attachments to a chat, and prompts interrupt reading. Readray automatically brings you everything you need to understand, right where you're reading. YouTube, PDFs, research papers, web articles, podcasts, newsletters, social media, and video or audio files are all supported. ■ Trust starts with reading the source right • Sees the scene, captures the frame. Not just the transcript. Slides and charts on screen are captured as frames straight into your notes. • Every image and table in the paper. Charts, tables and equations are read with their layout intact. • Every sentence links to its exact source. Each line of AI output carries a precise citation. Click it and the viewer jumps straight to the original passage. ■ The right report for every source. Read faster, understand deeper Choose a Key Points report or a Deep Research report, depending on what you need. • Papers: figures become interactive ones you can touch to understand. Readray traces the lineage of prior work, lays out the key gaps in a table, and explains hard terms with one click. • Investing videos: buy and sell calls are laid out in a table, the current price of every ticker mentioned is looked up, and the speaker's background is checked. • Tutorial videos: key prerequisites and screenshots captured from the video are organized into a playbook you can follow right away. ■ The smartest AI agent, that also knows everything you've read An agent with everything a modern agent has, skills, memory and model choice, working on top of the sources you trust. ■ A library for both you and your AI • Folders and reading status: tag sources as reading, read or archived, group them into folders, and pull up what you need instantly. • The agent keeps it organized: new sources are filed into folders automatically, and you can chat with a whole folder at once. • Anywhere via MCP: use what you've read inside other AI tools. • Enterprise-grade security: SOC 2 Type 2 certification is in progress, protecting your sources at the level teams and companies require. ■ Pick up wherever you read The Chrome and Safari extensions, the Mac and Windows desktop apps, and the iPhone and iPad apps all share one library. Continue on your phone what you started on your computer, and the other way around. Loved by 1.3 million researchers, students, and business leaders worldwide. LilysAI is reborn as Readray. Your existing LilysAI account and sources carry over as they are. Terms of Use: https://slashpage.com/lilys-terms/terms

About

PDF보내요

This app offers a comprehensive suite of tools for managing PDF documents directly on your device. Easily scan, merge, compress, sign, and redact sensitive information without uploading your files to external servers. It's designed for quick and secure PDF handling for various submission and sharing needs.

Highlights
  • Scan documents to PDF
  • Convert photos to PDF
  • Merge and split PDFs
  • Compress PDFs to target size
  • Redact sensitive information
  • Add electronic signatures
  • Convert web pages to PDF
Features
Read full description

PDF보내요는 스캔, 합치기, 압축, 서명, 가리기까지 PDF 작업을 쉽고 빠르게 처리할 수 있는 올인원 PDF 앱입니다. 과제 제출, 관공서 서류 업로드, 계약서 서명, 증빙서류 제출 등 PDF가 필요한 순간에 복잡한 과정 없이 빠르게 작업하고 바로 공유할 수 있습니다. 가장 중요한 특징은 모든 작업이 사용자의 기기에서만 처리된다는 점입니다. 문서가 외부 서버로 업로드되지 않아 개인정보가 포함된 문서도 안심하고 사용할 수 있습니다. 주요 기능 • 문서 스캔 후 PDF 생성 • 사진 여러 장을 PDF로 변환 • PDF 합치기 • PDF 분할 • 페이지 순서 변경 • 페이지 회전 • PDF 압축 • 목표 용량 맞춤 압축 • 주민등록번호, 전화번호, 계좌번호 가리기 • PDF 암호 설정 및 해제 • 전자 서명 추가 • 도장 및 날짜 삽입 • PDF 주석 및 편집 • 워터마크 추가 • 페이지 번호 삽입 • PDF 자르기 • PDF를 이미지로 변환 • OCR 문자 인식 • 웹페이지를 PDF로 저장 • 텍스트를 PDF로 변환 • 제출용 파일명 자동 생성 PDF 압축 용량이 큰 PDF를 업로드 가능한 크기로 줄일 수 있습니다. • 최대 압축 • 권장 압축 • 고화질 압축 • 목표 용량 압축 관공서 제출용 10MB 제한이나 이메일 첨부 제한에 맞춰 PDF를 최적화할 수 있습니다. 안심 가리기 민감한 개인정보를 안전하게 보호할 수 있습니다. • 주민등록번호 가리기 • 전화번호 가리기 • 계좌번호 가리기 • 이메일 주소 가리기 • 수동 영역 가리기 가려진 정보는 문서에서 영구적으로 제거됩니다. 전자 서명 계약서, 동의서, 신청서 등에 서명을 추가할 수 있습니다. • 서명 저장 • 서명 재사용 • 크기 조절 • 위치 이동 파일명 도우미 제출 규칙에 맞는 파일명을 빠르게 생성할 수 있습니다. 예시 홍길동_과제명_20260611.pdf PDF보내요는 이런 분들에게 추천합니다. • 대학생 및 수험생 • 직장인 • 공무원 • 교사 • 학부모 • 프리랜서 • 소상공인 개인정보 보호 PDF보내요는 사용자의 문서를 수집하거나 저장하지 않습니다. 모든 PDF 작업은 사용자의 기기에서 직접 처리되며, 문서가 외부 서버로 전송되지 않습니다. 문서를 만들고, 수정하고, 압축하고, 서명하고, 바로 보내세요. PDF보내요. 보내기 전 필요한 모든 PDF 작업을 한 곳에서.

Screenshots

Readray (formerly LilysAI)4 screens
PDF보내요4 screens

Verdict

The call

The clearest difference is in-app purchases: PDF보내요 at none against Readray (formerly LilysAI)'s 6. PDF보내요 also leads on update cadence (daily vs every 3 weeks) and review sentiment (100% vs 75%). On price, ads, device support and iOS requirement 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. Readray (formerly LilysAI) sells 6 in-app purchases, starting at $10.49 per month. PDF보내요 asks for nothing beyond the download.

UpkeepUpdate frequency

Readray (formerly LilysAI) ships an update every 3 weeks, PDF보내요 daily. The most recent releases landed on October 31, 2026 and October 24, 2026 respectively.

Scorecard4 real differences · 6 level
Readray (formerly LilysAI) versus PDF보내요: the parameters behind the verdict, then further details
ParameterReadray (formerly LilysAI)PDF보내요
PriceFreeFree
Rating—5.0 (3 ratings) — better
Positive reviews75.0% of reviews100.0% of reviews — better
Number of ratings—3 — better
Update frequencyEvery 3 weeksDaily — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.015.0
Further details — not scored
Size173 MB7 MB
Age rating12+4+
DeveloperLilysAI, INC.se hwan cha

Customer experience

Readray (formerly LilysAI)

Written reviews20 reviews
Positive75.0%
Neutral15.0%
Negative10.0%

PDF보내요

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

6 purchases

Readray (formerly LilysAI)

Subscriptions6
  • LilysAI Starter Monthly$10.491 Month
  • LilysAI Basic Monthly$19.991 Month
  • LilysAI Pro Monthly$59.991 Month
Show 3 more
  • LilysAI Starter Yearly$91.991 Year
  • LilysAI Basic Yearly$179.991 Year
  • LilysAI Pro Yearly$599.991 Year
None

PDF보내요

No in-app purchases

Questions

Is Readray (formerly LilysAI) free?
Readray (formerly LilysAI) is free to download, with in-app purchases available.
Is PDF보내요 free?
PDF보내요 is free to download, with no in-app purchases.
Do Readray (formerly LilysAI) or PDF보내요 have ads?
Neither Readray (formerly LilysAI) nor PDF보내요 shows ads.
Which is updated more often, Readray (formerly LilysAI) or PDF보내요?
Readray (formerly LilysAI) ships an update every 3 weeks, and PDF보내요 daily. Most recently, Readray (formerly LilysAI) was updated on October 31, 2026 and PDF보내요 on October 24, 2026.

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