Comparison

PDF Max vs LimeBoard_KR

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

Head to head
About

PDF Max

This app allows you to read, annotate, and sign PDF documents on your mobile device. You can mark up text, add handwritten notes, insert stamps, fill out forms, and manage PDF pages. It also offers robust file management and cloud integration for seamless access to your documents.

Highlights
  • Read and annotate PDFs
  • Fill and sign PDF forms
  • Handwriting and text markup
  • Manage PDF pages
  • Cloud storage integration
  • Voice annotations
Features
Read full description

PDF Max is a complete PDF editor for iPhone, iPad, and Mac, trusted by millions of people since 2012. From signing a form to building research you can verify, PDF Max helps you edit, annotate, organize, understand, study, protect, and deliver PDFs—all in one app. YOUR PDF. NOW A WORKSPACE. Collect important passages, highlights, images, tables, formulas, and notes as Cards beside your PDFs. Every Card remembers where it came from, so you can return to the original page whenever you need the full context. • Search, tag, connect, and arrange your Cards • Gather related Cards into named groups called Frames • Organize evidence from several PDFs without merging them • Compare passages side by side or view your evidence as an Outline or table • Present Frames or export your work to Markdown, PDF, or Word STUDY WHAT MATTERS Turn trusted Cards into Questions, practice a focused topic, or use scheduled Study for long-term review. Track your Progress, study text and visual material, and return to the supporting PDF whenever an answer needs more context. On supported devices, Apple Intelligence can draft Questions for you to review before saving. EDIT, ANNOTATE, FILL, AND SIGN • Edit existing text, typography, images, links, shapes, and tables • Add, replace, crop, align, rotate, and arrange content • Remove image backgrounds and automatically crop subjects • Highlight, underline, strike through, draw, stamp, and comment • Add text boxes, callouts, notes, shapes, and threaded comments • Complete forms, find missing required fields, and add reusable signatures • Create and edit text, checkbox, radio, dropdown, signature, date, and image fields • Permanently redact text, areas, pages, or search results SCAN, READ, AND UNDERSTAND • Scan paper with automatic capture, edge detection, cleanup, crop, filters, and page reordering • Make scans searchable with optional OCR • Turn selected images into polished PDFs • Reflow fixed or scanned pages into a comfortable reading column • Keep figures beside the text they explain • Customize reading theme, typography, spacing, margins, and alignment • Translate supported languages and listen with on-device Read Aloud • Keep selected passages and useful context with Focus View VOICE NOTES THAT STAY ON THE PAGE • Place and play audio notes anywhere in a PDF • Create searchable on-device transcripts when the required speech model is available MAKE FLAT FORMS FILLABLE • Detect likely text, checkbox, and signature fields in flat or printed forms • Review every detected field before applying it • Use Form Assist to review suggested answers from your encrypted profile EVERY PDF TOOL IN ONE PLACE • Reorder, rotate, insert, duplicate, replace, extract, merge, split, or delete pages • Compress PDFs while preserving selectable text and vector graphics • Resize mixed pages to standard paper sizes • Add page numbers, N of M, Roman numerals, letters, or Bates numbering • Add or remove an open password • Create and edit PDF outlines and bookmarks • Recognize text with OCR and convert Word documents to PDF • Create PDFs from paper, journal, planner, graph, and project templates • Present PDF pages or Workspace Frames full screen • Save, print, flatten, share, or export the finished result Join more than 25 million downloads worldwide and move from document to outcome with PDF Max. Some advanced features require PDF Max PREMIUM. PDF MAX PREMIUM SUBSCRIPTION Payment will be charged to your Apple Account when the purchase is confirmed. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current subscription period. You can manage or cancel your subscription in your Apple Account settings. Any unused portion of a free trial will be forfeited when a subscription is purchased, where applicable. Privacy Policy: https://mobeera.ai/privacy Terms: https://mobeera.ai/terms

About

LimeBoard_KR

Features
Read full description

개발협력프로젝트 성과관리 앱 라임보드(LimeBoard)입니다. 위치서비스기반으로 프로젝트에서 수행하는 설문조사와 데이터 수집을 용이하게 할 수 있습니다. 프로젝트에서 성과 모니터링 조사를 수행하는 설문조사요원을 위한 앱으로 회원가입 후 프로젝트 조사에 등록된 조사회원이 사용할 수 있습니다. 1. 내가 맡은 조사 지역과 조사 내용을 확인하고 얼마나 진행되었는지 바로 파악할 수 있습니다. 2. 설문조사 결과를 정확하게 기록할 수 있습니다. 3. 조사와 관련한 사안을 신속하게 공지 받을 수 있습니다.

Screenshots

PDF Max4 screens
LimeBoard_KR4 screens

Verdict

The call

The clearest difference is in-app purchases: LimeBoard_KR at none against PDF Max's 10. LimeBoard_KR also leads on update cadence (every 10 days vs monthly) and iOS requirement (13.0 vs 18.0). 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. PDF Max sells 10 in-app purchases, starting at $1.99 per 7 days. LimeBoard_KR asks for nothing beyond the download.

UpkeepUpdate frequency

PDF Max ships an update monthly, LimeBoard_KR every 10 days. The most recent releases landed on November 1, 2026 and October 27, 2026 respectively.

Scorecard3 real differences · 7 level
PDF Max versus LimeBoard_KR: the parameters behind the verdict, then further details
ParameterPDF MaxLimeBoard_KR
PriceFreeFree
Rating4.5 (1.2K ratings) — better—
Positive reviews35.4% of reviews—
Number of ratings1.2K — better—
Update frequencyMonthlyEvery 10 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Mac — betteriPhone, iPod
Requires iOS18.013.0 — better
Further details — not scored
Size301 MB33 MB
Age rating4+4+
DeveloperMobeeraBiodiv Inc.

Bugs and requests

PDF Max

Reported bugs

4 issues
  • Disappearing documents and annotations
  • Incompatibility with newer devices
  • Crashes on launch
  • Unreliable file saving

Requested features

5 requests
  • Dark mode option
  • Ability to edit/delete annotations
  • Better integration with cloud storage
  • Split-screen viewing for PDFs
  • Improved handwriting recognition

LimeBoard_KR

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

PDF Max

Subscriptions3
  • Premium Subscription (1 week)$1.997 Days
  • One year premium$34.991 Year
  • Yearly Onboarding Offer7 Days trial$34.991 Year
One-time7
  • Standard Annotating Package$0.99
  • Cloud Access Package$1.99
  • Advanced Annotating Package$3.99
Show 4 more
  • Form Filling Package$3.99
  • Pro Package$4.99
  • Premium Package (Update)$4.99
  • Premium Package (New User)$9.99
None

LimeBoard_KR

No in-app purchases

Questions

Is PDF Max free?
PDF Max is free to download, with in-app purchases available.
Is LimeBoard_KR free?
LimeBoard_KR is free to download, with no in-app purchases.
Do PDF Max or LimeBoard_KR have ads?
Neither PDF Max nor LimeBoard_KR shows ads.
Which is updated more often, PDF Max or LimeBoard_KR?
PDF Max ships an update monthly, and LimeBoard_KR every 10 days. Most recently, PDF Max was updated on November 1, 2026 and LimeBoard_KR on October 27, 2026.

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