Comparison

KBReader vs SimpPDF Reader

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

Head to head
About

KBReader

This app allows you to view, organize, and share PDF documents. It supports encrypted files, custom folders, and easy transfer from computers. Export your PDFs to various cloud storage and email services.

Highlights
  • View, navigate, and zoom PDFs
  • Organize documents into folders
  • Support for encrypted PDFs
  • Transfer files via iTunes
  • Export to cloud services
  • Open PDFs from other apps
Features
Read full description

KBReader is the free, amazing and the smartest ever PDF reader. Store and view your documents, transferring them easily from any Mac or PC. Export to Box, Dropbox, Google Drive, Evernote, Gmail, Copy, Yahoo! and many others. VIEW PDFs • Quickly open PDF documents from email, the web, or any app that supports “Open In…” • Navigate, scroll, zoom in and out • Usual, iBooks-like document navigation • Device rotation and all orientations ORGANIZE & REVIEW PDFs • PDF documents can be organized into folders including custom folders • Work with encrypted (password protected) PDFs STORE AND SHARE FILES • iTunes File Sharing for file transfers • Easily access your recent files always stored in RECENT folder • Store and share files in email apps such as Evernote, Gmail, Yahoo! etc. DO AS MUCH AS YOU CAN WITH PDF FILES • Support of the PDF links • Support of the PDFs with rotated pages EXPORT PDF FILES EVERYWHERE YOU NEED • Universal: designed for iPad, iPhone and iPod touch • Export files in email apps such as Box, Dropbox, Google Drive, Copy etc.

About

SimpPDF Reader

Features
Read full description

SimpPDF Reader is a clean, local-first PDF reader for iPhone and iPad. Import PDFs from the Files app, keep them in a private local library, resume from the last page you read, search inside documents, bookmark important pages, and share PDFs when needed. Your documents stay on your device. SimpPDF Reader does not require an account, does not upload your files, does not track you, and does not include ads or analytics.

Screenshots

KBReader4 screens
SimpPDF Reader3 screens

Verdict

The call

The clearest difference is in-app purchases: SimpPDF Reader at none against KBReader's 1. SimpPDF Reader also leads on update cadence (daily vs every 4 months). KBReader's advantage is iOS requirement (7.0 vs 17.0). 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. KBReader sells 1 one-off in-app purchase. SimpPDF Reader asks for nothing beyond the download.

UpkeepUpdate frequency

KBReader ships an update every 4 months, SimpPDF Reader daily. The most recent releases landed on September 13, 2026 and August 23, 2026 respectively.

Scorecard3 real differences · 7 level
KBReader versus SimpPDF Reader: the parameters behind the verdict, then further details
ParameterKBReaderSimpPDF Reader
PriceFreeFree
Rating4.0 (1 ratings) — better—
Positive reviews80.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 4 monthsDaily — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS7.0 — better17.0
Further details — not scored
Size12 MB1 MB
Age rating4+4+
DeveloperVLADYSLAV YERSHOVWei He

In-app purchases

1 purchases

KBReader

One-time1
  • Remove ADs$0.99
None

SimpPDF Reader

No in-app purchases

Questions

Is KBReader free?
KBReader is free to download, with in-app purchases available.
Is SimpPDF Reader free?
SimpPDF Reader is free to download, with no in-app purchases.
Do KBReader or SimpPDF Reader have ads?
Neither KBReader nor SimpPDF Reader shows ads.
Which is updated more often, KBReader or SimpPDF Reader?
KBReader ships an update every 4 months, and SimpPDF Reader daily. Most recently, KBReader was updated on September 13, 2026 and SimpPDF Reader on August 23, 2026.

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