Comparison

PDF Scanner & Simple Reader vs Kairo

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

Head to head
About

PDF Scanner & Simple Reader

Transform paper documents into searchable PDFs using your device's camera. Read, bookmark, and organize your scanned files offline with a simple, intuitive interface. Offers tools for page extraction and merging for efficient document management.

Highlights
  • Document scanning to PDF
  • Simple PDF reader with zoom
  • Continue reading from last page
  • Bookmark important pages
  • Offline PDF access
  • Extract and merge PDF pages
Features
Read full description

PDF Scanner & Simple Reader helps you scan paper documents into PDF, then read, bookmark, and keep them offline on your device. Use your camera to save receipts, handwritten notes, contracts, study papers, manuals, certificates, and everyday documents as PDFs. Open scanned files right away, return to them from recent files, and continue reading without a complicated editor. KEY FEATURES Document Scan to PDF β€’ Scan paper documents with your camera β€’ Save receipts, notes, contracts, and study material as PDF β€’ Create multi-page PDFs from scanned images β€’ Open the scanned PDF immediately after saving Simple PDF Reader β€’ Fast PDF opening for everyday documents β€’ Smooth vertical scrolling and pinch-to-zoom β€’ Page-by-page navigation β€’ Clean reading screen with a floating toolbar Continue Reading & Bookmarks β€’ Keep recently opened PDFs in one place β€’ Continue from the last page you read β€’ Bookmark important pages β€’ Jump back to saved pages quickly Offline & Private β€’ Read PDFs offline β€’ Files are stored locally on your device β€’ Open password-protected PDF files β€’ No account required for basic reading PDF Tools β€’ Extract selected pages into a new PDF β€’ Merge PDF files β€’ Save only the pages you need β€’ Use scan, export, and merge as part of your document workflow PRO BUNDLE Upgrade to Pro for more room to work: β€’ Unlimited document scanning β€’ Unlimited PDF export β€’ Unlimited PDF merge β€’ Clean ad-free reading PERFECT FOR Students β€’ Scan handouts, notes, textbooks, and study papers β€’ Read saved PDFs offline β€’ Bookmark important pages for review Work & Business β€’ Scan contracts, receipts, reports, and forms β€’ Keep documents easy to reopen β€’ Extract or merge pages when needed Everyday Documents β€’ Save receipts, certificates, manuals, and letters β€’ Turn paper documents into PDFs you can read later β€’ Keep a simple local document library WHY SIMPLE READER? β€’ Scan first: turn paper documents into PDF β€’ Read right away: open scanned PDFs instantly β€’ Simple: no complicated menus β€’ Offline: keep files on your device β€’ Accessible: clean reading UI β€’ Flexible: scan, read, bookmark, extract, and merge PDFs Download PDF Scanner & Simple Reader and start turning paper documents into readable PDFs. FEEDBACK & SUPPORT Send us your feedback through the in-app feature. Your input helps us improve the reading and scanning experience. PRIVACY PROTECTION PDF files are stored only on your device. No PDF content is sent to external servers. TERMS & POLICIES β€’ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ β€’ Privacy Policy: https://general-beaufort-538.notion.site/Pdf-2853c0f6ead280999815c6b541866c07

About

Kairo

Features
Read full description

Kairo turns your day into a ledger. Record where your time goes, rate each block as Value / Maintain / Drain, and see β€” at last β€” what your week is really made of. β€œWhat gets measured gets managed.” β€” Peter Drucker FEATURES β€’ Time ledger β€” log activities and evaluate each by value β€’ Stopwatch & 25-minute Focus timer β€’ Reports β€” value breakdown, daily trend, time by area & activity β€’ People (personal CRM) β€” track who you spend time with and get overdue-contact reminders β€’ Google Calendar sync β€” turn events into entries β€’ Mission & dream board β€” align your days with your goals β€’ Real-time sync with the web and across devices Kairo Pro (subscription) unlocks AI weekly coaching, calendar sync, and more. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://time-relationship.vercel.app/privacy

Screenshots

PDF Scanner & Simple Reader4 screens
Kairo4 screens

Verdict

The call

The clearest difference is device support: PDF Scanner & Simple Reader at 3 against Kairo's 1. PDF Scanner & Simple Reader also leads on iOS requirement (15.1 vs 17.0). On price, update cadence, ads and in-app purchases there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. PDF Scanner & Simple Reader sells 2 in-app purchases, starting at $0.99 per month and Kairo sells 1 in-app purchase, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 25, 2026 and October 8, 2026 respectively.

Scorecard2 real differences Β· 6 level
PDF Scanner & Simple Reader versus Kairo: the parameters behind the verdict, then further details
ParameterPDF Scanner & Simple ReaderKairo
PriceFreeFree
Positive reviews0.0% of reviewsβ€”
Update frequencyWeeklyWeekly
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesβ€”
DevicesiPhone, iPad, iPod β€” betteriPhone
Requires iOS15.1 β€” better17.0
Further details β€” not scored
Size64 MB15 MB
Age rating4+4+
DeveloperKunWoo Kwonchangjun lee

In-app purchases

2 purchases

PDF Scanner & Simple Reader

Subscriptions1
  • remove ads (one month)$0.991 Month
One-time1
  • remove ads (life time)$4.99
1 purchases

Kairo

Subscriptions1
  • Kairo Pro Monthly$4.991 Month

Questions

Is PDF Scanner & Simple Reader free?
PDF Scanner & Simple Reader is free to download, with in-app purchases available.
Is Kairo free?
Kairo is free to download, with in-app purchases available.
Do PDF Scanner & Simple Reader or Kairo have ads?
Neither PDF Scanner & Simple Reader nor Kairo shows ads.
Which is updated more often, PDF Scanner & Simple Reader or Kairo?
PDF Scanner & Simple Reader ships an update weekly, and Kairo weekly. Most recently, PDF Scanner & Simple Reader was updated on October 25, 2026 and Kairo on October 8, 2026.

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