Comparison

PDF Reader vs Greenbox Safe

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

Head to head
About

PDF Reader

Easily read, annotate, fill, and sign PDF documents on your iPhone or iPad. This all-in-one tool allows for convenient document management, sharing, and printing.

Highlights
  • Read and view PDF files
  • Annotate and mark up PDFs
  • Fill out PDF forms
  • Sign PDF documents
  • Organize and manage PDF files
  • Share and print PDFs
Features
Read full description

Make PDF document management simple with PDF Reader: Edit & Sign PDF. Read, view, annotate, fill, sign, save and share PDF documents directly from your iPhone or iPad. Whether you need to read an important document, add notes, sign a PDF or share a file with colleagues, this PDF Reader and Editor gives you convenient tools to manage your documents anytime, anywhere. ALL-IN-ONE PDF READER & EDITOR Open your PDF documents quickly and enjoy a simple, convenient reading experience. Manage your files and access the documents you need in one place. KEY FEATURES - PDF Reader - Quickly open and view PDF files. - Browse your PDF documents easily. - Navigate through PDF pages. - Access your documents from a simple file list. - PDF Editor & Annotation - Annotate PDF documents. - Add notes and mark up your PDFs. - Customize your PDF documents. - Save your updated PDF files. - Fill & Sign PDF - Fill out PDF documents. - Sign PDF files easily. - Manage important documents conveniently. PDF File Manager - View your PDF files in one simple list. - Delete individual PDF documents. - Remove unwanted PDF files. - Keep your documents organized. - Share & Print PDF - Share PDF documents with friends, family and colleagues. - Send files through email and messaging apps. - Print PDF documents whenever needed. YOUR DOCUMENTS, ALWAYS WITH YOU - PDF Reader: Edit & Sign PDF is a useful document management tool for everyday tasks, work, study and personal use. - Download PDF Reader: Edit & Sign PDF and make managing your PDF documents easier! - We continuously work to improve the app and bring you a better experience. Thank you for using our app! Privacy Policy: https://sites.google.com/view/developer-info/privacy-policy Terms of Use: https://sites.google.com/view/developer-info/terms-of-use

About

Greenbox Safe

Features
Read full description

Greenbox Safe is your personal encrypted vault — a secure place to store passwords, notes, documents, photos, IDs, and sensitive information without relying on any external server. Your data is fully encrypted on your device and only leaves your device in encrypted form. You can sync the encrypted vault file privately using iCloud or Google Drive, giving you complete control over your privacy. Key Features: • Zero-knowledge architecture — only you can decrypt your vault • Encrypted storage for passwords, notes, files, documents, and images • Fast unlock using Face ID, Touch ID, or a master passcode • Private offline mode — nothing is uploaded unless you choose • Cloud Sync via iCloud or Google Drive (encrypted, zero-trust) • No servers, no analytics, no tracking, no ads • Import/Export vault files securely • Designed for speed, simplicity, and total privacy Why Greenbox Safe? Most “password apps” and “vault apps” store your data on their servers. Greenbox Safe gives you real ownership — your encryption keys never leave your device, and only you hold the master key. Your data stays yours. Always.

Screenshots

PDF Reader4 screens
Greenbox Safe3 screens

Verdict

The call

The clearest difference is in-app purchases: PDF Reader at none against Greenbox Safe's 3. Greenbox Safe's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 5 months). On price 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. Greenbox Safe sells 3 in-app purchases, starting at $4.99 per month. PDF Reader asks for nothing beyond the download.

UpkeepUpdate frequency

PDF Reader ships an update every 5 months, Greenbox Safe every 3 weeks. The most recent releases landed on November 3, 2026 and October 28, 2026 respectively.

Scorecard4 real differences · 5 level
PDF Reader versus Greenbox Safe: the parameters behind the verdict, then further details
ParameterPDF ReaderGreenbox Safe
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 5 monthsEvery 3 weeks — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.615.6 — better
Further details — not scored
Size5 MB45 MB
Age rating4+4+
DeveloperRahul AlagiyaDiscus IT

In-app purchases

None

PDF Reader

No in-app purchases

3 purchases

Greenbox Safe

Subscriptions2
  • Greenbox Premium (Monthly)$4.991 Month
  • Greenbox Premium (Yearly)$49.991 Year
One-time1
  • Greenbox Lifetime$199.99

Questions

Is PDF Reader free?
PDF Reader is free to download, with no in-app purchases.
Is Greenbox Safe free?
Greenbox Safe is free to download, with in-app purchases available.
Do PDF Reader or Greenbox Safe have ads?
PDF Reader shows ads; Greenbox Safe does not.
Which is updated more often, PDF Reader or Greenbox Safe?
PDF Reader ships an update every 5 months, and Greenbox Safe every 3 weeks. Most recently, PDF Reader was updated on November 3, 2026 and Greenbox Safe on October 28, 2026.

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