Comparison

Contacts+ | Address Book vs cSync

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

Head to head
About

Contacts+ | Address Book

This cloud-based address book simplifies contact management by syncing across devices and accounts. It offers features like contact deduplication, business card scanning, and automatic enrichment to keep your information organized and up-to-date.

Highlights
  • Cross-device, cross-platform sync
  • Contact deduplication
  • Scan and save business cards
  • Tag contacts and add notes
  • Automatic contact enrichment
  • Spam blocking
Features
Read full description

Meet your new favorite contact management tool, Contacts+. Contacts+ is a cloud-based address book designed to take the hassle out of contact management so you can focus on what matters most - relationships. Truly multi-platform, Contacts+ syncs your contacts across your devices as well as across various accounts you may store contacts in (such as Gmail, Exchange, Office365, and iCloud). Why use Contacts+? • Contact deduplication - Consolidate all your information about each contact into one, holistic profile. Never wonder again which pieces of contact information are correct. • Cross-device, cross-platform sync - Your address book is now available everywhere. • Scan & save business cards - Upload a picture of scanned business card, and we'll transcribe the information & add it to your address book. • Organized your way - Tag contacts to create custom groupings, or leave notes for added context. • Automatic contact enrichment - We'll help fill in the details about your contacts (photos, social profiles, & more) by adding content we find from around the web. • Spam Block - We help enable you to connect with friends and colleagues and block unwanted people, telemarketers, and spam. Do even MORE with Contacts+ Premium. With Premium, you can: • Scan MORE business cards - Scan & save up to 1,000 business cards a year. • Sync multiple accounts - Sync up to 5 address books & keep your contacts in sync across multiple platforms. • Choose Monthly or Annual Premium subscription - Pick a plan that fits your needs. Contacts+ is free to download and use, and Contacts+ Premium is available by subscription and unlocks all of the features above. Prices may vary by location. Payment will be charged to your Apple ID account at the confirmation of purchase. The subscription automatically renews unless it is canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions by going to your App Store account settings after purchase. Privacy & Terms of Service This App is for professional use and not intended for children under the age of 16, and we will never intentionally collect any information from users under the age of 16. For more information, please visit our privacy policy. Privacy Policy: https://www.contactsplus.com/privacy Terms of Use: https://www.contactsplus.com/terms Questions, feedback, just want to say "hi"? You can email us at support@contactsplus.com!

About

cSync

Streamline contact management with powerful search, comprehensive backup, and intelligent cleanup tools. Analyze contact data with visual charts and perform batch operations for efficiency.

Highlights
  • Full-field and Pinyin search
  • Multi-format contact backup (vCard, CSV, Excel)
  • Duplicate contact detection and merging
  • Contact data statistics and visual charts
  • Batch operations for contacts
  • iCloud sync for backups
Features
Read full description

**cSync - Making Contact Management Easier** Have you ever encountered these problems? - iOS native contacts don't support partial phone number matching - Too many contacts, difficult to find people - Contact data cannot be easily backed up and migrated - Too many duplicate contacts need cleanup - Want to analyze contact data statistics cSync is built to solve these problems! --- **Powerful Search Features** - **Full-field search**: Search not only names, but also phones, emails, companies, positions, notes, addresses, and all other fields - **Pinyin search**: Quickly find contacts by entering pinyin initials or full pinyin - **Phone partial matching**: Match any consecutive digits in phone numbers - no need to remember the complete number - **Smart sorting**: Search results intelligently ranked by relevance, most relevant results first - **Highlight display**: Search results automatically highlight matched fields and text for easy viewing **Search Examples:** - Enter "138" to find all phone numbers containing these three consecutive digits - Enter "js" to find all contacts whose name pinyin initials are JS (e.g., John Smith) - Enter "apple" to find contacts with apple in their company name or email --- **Comprehensive Backup Features** - **Multi-format support**: Export to vCard, CSV, and Excel formats - **One-tap backup**: Backup all contacts with one tap, ensuring data safety - **Backup management**: View all historical backups, restore to any version anytime - **Incremental backup**: Intelligently identify changes, only backup modified contacts - **iCloud sync**: Backups automatically uploaded to iCloud Drive, sync across devices - **Backup encryption**: Password protection support for data privacy security - **Quick sharing**: Share backup files via AirDrop, Email, Messages, and more **Backup Scenarios:** - Backup contacts before getting a new phone, import on new device - Regular backups to prevent data loss - Export to Excel for editing and management on computer - Share with family and friends for batch contact import --- **Smart Cleanup Features** - **Duplicate detection**: Intelligent algorithms detect duplicate and similar contacts - **Multiple matching modes**: - Exact match: Same name and phone number - Smart match: Similar names, same pinyin, overlapping phone numbers - **Compare preview**: Side-by-side comparison of duplicate contacts, clearly see differences - **Smart merge**: Automatically merge duplicate contacts, retaining all non-empty fields - **Batch cleanup**: Clean all duplicate contacts with one tap --- **Data Statistics & Analytics** - **Contact overview**: Total count, growth trends, distribution - **Field statistics**: Number of phones, emails, company info completeness - **Visual charts**: Pie charts, bar charts, line charts to display data - **Group analysis**: Analyze by initial letter, company, tags, and other dimensions --- **Other Featured Functions** - **Batch operations**: Batch delete, export, and edit - **Quick actions**: Tap phone to call directly, tap email to send mail - **Alphabetical index**: Side letter navigation for quick contact location - **Elegant interface**: Modern design, smooth animations, simple operation - **Privacy protection**: All data stored locally only, never uploaded to servers --- **Privacy Commitment** - All contact data is stored only on your local device - Never uploaded to any servers or third parties - iCloud backups are encrypted and protected by Apple - No personal information collected - Works completely offline, no network connection required --- Privacy Policy: https://csync.vercel.app/privacy-policy.html Terms of Use: https://csync.vercel.app/terms-of-use.html --- **Download cSync and make contact management easier!**

Screenshots

Contacts+ | Address Book4 screens
cSync4 screens

Verdict

The call

The clearest difference is rating: cSync at 5.0 against Contacts+ | Address Book's 4.5. Contacts+ | Address Book's advantage is ratings volume (5.8K vs 1). On price, ads, in-app purchases and monetization model 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. Contacts+ | Address Book sells 8 in-app purchases, starting at $9.99 per month and cSync sells 2 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

cSync holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Contacts+ | Address Book has 5.8K ratings behind it against 1, so its average is the more settled of the two.

Scorecard2 real differences · 8 level
Contacts+ | Address Book versus cSync: the parameters behind the verdict, then further details
ParameterContacts+ | Address BookcSync
PriceFreeFree
Rating4.5 (5.8K ratings)5.0 (1 ratings) — better
Positive reviews59.9% of reviews—
Number of ratings5.8K — better1
Update frequencyEvery 2 weeks—
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better16.6
Further details — not scored
Size52 MB2 MB
Age rating17+4+
DeveloperFullContact Inc.丹丹 李

Customer experience

Contacts+ | Address Book

All ratings5,805 ratings
Positive89.2%
Neutral4.4%
Negative6.4%
Written reviews685 reviews
Positive59.9%
Neutral9.5%
Negative30.7%

cSync

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Contacts+ | Address Book

Reported bugs

3 issues
  • App crashes and freezes on latest iOS versions
  • Sync issues causing duplicate and missing contacts
  • Inability to restore deleted or lost contacts

Requested features

4 requests
  • Native integration with Outlook and Microsoft 365
  • Improved contact deduplication and merging
  • Better support for international contacts and languages
  • Customizable contact fields and views

cSync

Not enough reviews yet to summarise bugs or requests.

In-app purchases

8 purchases

Contacts+ | Address Book

Subscriptions7
  • Premium (Monthly)$9.991 Month
  • Contacts+ Quarterly Premium$13.991 Month
  • Contacts+ Monthly Premium$15.991 Month
Show 4 more
  • Premium (Quarterly)$29.993 Months
  • Contacts+ Quarterly Premium$39.993 Months
  • Premium (Annual)$99.991 Year
  • Contacts+ Yearly Premium$119.991 Year
One-time1
  • Pack of 100 business cards$9.99
2 purchases

cSync

Subscriptions2
  • Weekly Premium3 Days trial$6.997 Days
  • Yearly Premium$69.991 Year

Questions

Is Contacts+ | Address Book free?
Contacts+ | Address Book is free to download, with in-app purchases available.
Is cSync free?
cSync is free to download, with in-app purchases available.
Which has better reviews, Contacts+ | Address Book or cSync?
cSync is rated higher. Contacts+ | Address Book averages 4.5 out of 5 from 5.8K ratings, while cSync averages 5.0 from 1 ratings.
Do Contacts+ | Address Book or cSync have ads?
Neither Contacts+ | Address Book nor cSync shows ads.

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