Comparison

Contacts Sync Pro vs Rooster ATS

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

Head to head
About

Contacts Sync Pro

Effortlessly synchronize your contacts across Google, iCloud, and Outlook. This reliable app ensures your contact information is up-to-date on your iPhone, supporting two-way syncing and preserving all contact details and groups.

Highlights
  • Sync Google, iCloud, and Outlook contacts
  • Two-way and one-way sync options
  • Syncs all contact fields and photos
  • Preserves Google labels and Outlook categories
  • Automatic background syncing
  • Duplicate contact elimination
  • Confirm changes before syncing
Features
Read full description

••• SYNC GOOGLE, ICLOUD, & OUTLOOK! ••• #1 SYNC APP FOR 15+ YEARS! ••• TRUSTED BY 10,000,000+ USERS! With Contacts Sync Pro, you can quickly & easily sync your Google or Outlook contacts with iPhone, giving you access to your contacts wherever you go. This app distinguishes itself with its reliability, ease of use, speed, and with a true "2-way sync" that merges changes made to either account. This is the #1 app for syncing contacts both in terms of downloads & reviews. Also of significance, this app syncs your Google labels or Outlook categories with your iPhone lists. For instance, you may have organized your Google contacts into groups such as "friends," "family," and "coworkers." After a sync, your iPhone and Google groups will match. With your groups configured on iPhone, you can easily send group emails or group messages. SYNC THE FOLLOWING ACCOUNTS: • Sync Google with iPhone • Sync Outlook with iPhone • Sync 2 Google accounts SYNC ANY IPHONE ACCOUNT: • Choose to sync all of your iPhone contacts, or choose to sync contacts from a specific iPhone account, such as iCloud, a local iPhone address book, Outlook, or a CardDAV account SYNC TYPES: • Choose from one of the following sync types: 2-Way Sync, 1-Way Sync, and Manual Sync • Choose a 2-Way Sync to sync changes in both directions • Choose a 1-Way Sync to transfer changes in one direction only • Choose a Manual Sync to sync specific contacts only SYNCS ALL FIELDS: • Syncs all fields including names, phonetic names, nicknames, email addresses, phone numbers, postal addresses, company names, job titles, departments, birthdays, anniversaries, events, notes, web page addresses, relationships, instant messaging accounts, & social profiles • Syncs contact photos • Syncs custom labels & custom fields INITIAL SYNC: • During the initial sync, the contents of matching contacts will be merged CONFIRM CHANGES BEFORE SYNCING: • Review each change before the sync actually begins AUTOMATIC SYNC: • Automatically syncs contacts in the background 24/7 APPLY FILTERS INCLUDING GROUP FILTER: • Apply the group filter, new contact filter, and more! DUPLICATE CONTACTS: • Eliminate duplicate contacts from both iPhone and Google

About

Rooster ATS

Features
Read full description

Manage your hiring process anytime, anywhere with Rooster ATS, the all-in-one Applicant Tracking System designed for modern HR teams. Track candidates, review applications and collaborate with your team seamlessly all from your mobile device.

Screenshots

Contacts Sync Pro4 screens
Rooster ATS4 screens

Verdict

The call

The clearest difference is price: Rooster ATS at Free against Contacts Sync Pro's $9.99. Rooster ATS also leads on in-app purchases (none vs 4) and update cadence (every 6 days vs every 3 months). Contacts Sync Pro's advantage is chart position (#165 vs unranked). On ads, 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

CostPrice · In-app purchases · Ads · Monetization

Rooster ATS is free to download; Contacts Sync Pro costs $9.99 up front. Contacts Sync Pro sells 4 one-off in-app purchases. Rooster ATS asks for nothing beyond the download.

UpkeepUpdate frequency

Contacts Sync Pro ships an update every 3 months, Rooster ATS every 6 days. The most recent releases landed on September 25, 2026 and September 17, 2026 respectively.

Scorecard4 real differences · 7 level
Contacts Sync Pro versus Rooster ATS: the parameters behind the verdict, then further details
ParameterContacts Sync ProRooster ATS
Price$9.99Free — better
Rating4.7 (802 ratings) — better—
Positive reviews87.4% of reviews—
Number of ratings802 — better—
Update frequencyEvery 3 monthsEvery 6 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
Best chart rank#165 — better—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.1 — better
Further details — not scored
Size44 MB39 MB
Age rating4+4+
DeveloperPlaya AppsRooster Technology

Bugs and requests

Contacts Sync Pro

Reported bugs

2 issues
  • Caused massive increase in number of contacts
  • Eliminated all existing contacts

Requested features

2 requests
  • Improved handling of duplicate contacts
  • Better side-by-side comparison of contacts

Rooster ATS

Not enough reviews yet to summarise bugs or requests.

In-app purchases

4 purchases

Contacts Sync Pro

One-time4
  • Unlimited SyncsFree
  • Automatic Contact SyncingFree
  • Make Contribution$4.99
Show 1 more
  • Make Larger Contribution$9.99
None

Rooster ATS

No in-app purchases

Questions

Is Contacts Sync Pro free?
Contacts Sync Pro costs $9.99, and also offers in-app purchases.
Is Rooster ATS free?
Rooster ATS is free to download, with no in-app purchases.
Do Contacts Sync Pro or Rooster ATS have ads?
Neither Contacts Sync Pro nor Rooster ATS shows ads.
Which is updated more often, Contacts Sync Pro or Rooster ATS?
Contacts Sync Pro ships an update every 3 months, and Rooster ATS every 6 days. Most recently, Contacts Sync Pro was updated on September 25, 2026 and Rooster ATS on September 17, 2026.

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