Contacts Backup & Sync vs PDF Reader Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Contacts Backup & Sync
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Contacts Backup & Sync makes it effortless to protect and manage your address book. Create reliable backups, export in the formats you need, and keep contacts synchronized across devices and cloud accounts—without generating duplicates. Save backups to your device or share them via email and the iOS Share Sheet to your preferred apps and storage services. Export in many formats for smooth transfers and easy restorations. Connect your Google and Microsoft accounts (Outlook, Live, Hotmail, and more) to sync one-way from device to cloud, cloud to device, or two-way. The app automatically detects duplicate entries, guides you through clean merges, and prevents new duplicates during sync. Quickly find incomplete entries—missing name, phone number, or email—so you can clean and organize in minutes. View contacts by company or groups, and see upcoming birthdays at a glance, including grouping by birthday. The app is free to use. Upgrade to Contacts Backup & Sync Pro via in-app purchase to unlock all features with no limits. We respect your privacy—your contacts remain under your control and are never shared without your consent. Terms of Use: This app is subject to Apple’s Standard End User License Agreement (EULA). https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
PDF Reader Pro
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The most powerful and complete PDF toolkit for iPhone and iPad! PDF Editor Pro is your all-in-one solution for viewing, editing, compressing, scanning, signing, and managing documents on the go. WHY PDF EDITOR PRO? 20+ Professional PDF Tools in One App Lightning-fast performance and smooth interface Industry-leading compression algorithms Professional-grade document scanner Secure offline processing - 100% privacy guaranteed Cloud sync across all your Apple devices No subscriptions required for basic features COMPLETE PDF TOOLKIT EDIT AND ANNOTATE Add text, shapes, and drawings to PDFs Highlight, underline, and strikethrough text Insert images, stamps, and stickers Add custom watermarks to protect documents Delete, rotate, and rearrange pages Professional PDF editing made simple DIGITAL SIGNATURES Create and save custom signatures Sign documents with finger or stylus Fill out and sign forms electronically Add date stamps and text fields Perfect for contracts, agreements, and forms DOCUMENT SCANNER Scan documents with your camera Auto edge detection and perspective correction Multi-page document scanning High-quality image processing Convert scans to searchable PDFs with OCR ORGANIZE PDFs Merge multiple PDFs into one document Split PDFs into separate files Reorder pages with drag and drop Rotate pages individually or in batches Extract specific pages from PDFs Delete unwanted pages CONVERT AND EXTRACT Convert PDFs to images (JPG, PNG) Extract images from PDF documents OCR text recognition for scanned documents Convert images to PDF format Export to Word, Excel formats (Premium) SMART COMPRESSION Reduce file sizes dramatically while maintaining quality PDF Compression - Up to 90% size reduction Photo Compression - Smart quality optimization Video Compression - HD quality preservation Audio Compression - Optimize sound files Batch processing for multiple files Before/after preview for comparison SECURITY AND PRIVACY Password protect sensitive documents Biometric authentication (Face ID/Touch ID) Private folder for confidential files Offline processing - your files never leave device No data collection or tracking End-to-end encryption for cloud sync Upgrade to Premium and unlock: Unlimited PDF operations (no daily limits) OCR text recognition for all languages Advanced watermarking tools Batch conversion and processing Priority cloud sync Export to Word, Excel, PowerPoint Remove all advertisements Premium customer support Access to beta features Lifetime updates PERFECT FOR EVERYONE STUDENTS - Scan lecture notes and textbooks, annotate study materials, sign and submit assignments, compress files for email submission PROFESSIONALS - Sign contracts on the go, edit and review documents, compress presentations for sharing, merge reports into single PDFs BUSINESSES - Process invoices and receipts, manage legal documents, create professional proposals, secure sensitive information HOME USERS - Organize household documents, scan bills and receipts, fill out forms digitally, archive important papers KEY FEATURES AT A GLANCE Open PDF, Word, Excel, PowerPoint files Annotate with text, shapes, drawings Highlight and mark up documents Digital signature creation and signing Custom watermarks and stamps Document scanner with OCR Merge and split PDFs Rotate and reorder pages Extract images and text Convert PDFs to images Advanced file compression (PDF, photo, video, audio) Password protection Cloud synchronization Dark mode support iPad Pro and Apple Pencil support Offline functionality No registration required for basic features DOWNLOAD NOW FREE Start managing your documents like a pro! Download PDF Editor Pro today and experience the most complete PDF toolkit for iOS. Made for iOS users worldwide Copyright 2025 PDF Editor Pro
Screenshots
Verdict
The clearest difference is ads: Contacts Backup & Sync at none against PDF Reader Pro's shown. Contacts Backup & Sync also leads on update cadence (weekly vs every 2 weeks). On price, in-app purchases, 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
Both are free to download. Contacts Backup & Sync sells 1 one-off in-app purchase and PDF Reader Pro sells 2 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.
Contacts Backup & Sync ships an update weekly, PDF Reader Pro every 2 weeks. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.
| Parameter | Contacts Backup & Sync | PDF Reader Pro |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly — better | Every 2 weeks |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.1 — better | 16.6 |
| Further details — not scored | ||
| Size | 25 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | Inventio | Amar Singh Ahirwar |
In-app purchases
Contacts Backup & Sync
- Contact Backup & Sync Pro$1.99
PDF Reader Pro
- Weekly3 Days trial$6.997 Days
- Yearly Plan7 Days trial$34.991 Year
Questions
Is Contacts Backup & Sync free?
Is PDF Reader Pro free?
Do Contacts Backup & Sync or PDF Reader Pro have ads?
Which is updated more often, Contacts Backup & Sync or PDF Reader Pro?
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