Comparison

Contaker. Transfer contacts. vs Sync

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

Head to head
About

Contaker. Transfer contacts.

Easily back up, store, and transfer your contacts across different platforms. Access and manage your contact cloud storage from anywhere. Offers free contact transfer to new devices.

Highlights
  • Contact backup and storage
  • Cross-platform contact transfer
  • Cloud contact management
  • Automatic contact download
  • Free contact transfer to new devices
Features
Read full description

Contaker is fast, convenient and secure way to store and transfer your contacts from devices with different platforms. Contaker allows you backup contacts from all devices from anywhere in the world and at any time. You can also access and manage the cloud storage of contacts in your personal account on contaker.com Transfer your contacts to a new device for free with the Transfer subscription. Turn on a monthly or annual subscription to use the automatic download feature. You can subscribe in the Contaker app. You can unsubscribe at any time, but no later than 24 hours before the end of the current subscription. Privacy policy: https://contaker.com/privacy_policy_ru.html Terms of Use: https://contaker.com/terms_of_use_ru.html

About

Sync

This app facilitates file synchronization, backup, and restoration across local storage and various cloud services. It includes a file manager for browsing and manipulating files, and a web server for sharing local content over Wi-Fi. Users can set up custom tasks for different transfer operations.

Highlights
  • File synchronization
  • Backup and restore
  • Local and cloud drive support
  • Built-in file manager
  • Web server for Wi-Fi sharing
  • Customizable transfer tasks
Features
Read full description

Keep a safe copy of everything that matters. Sync is the multi-cloud backup app that backs up, restores, and syncs your files across your iPhone/iPad, USB and external drives, and 5 major cloud services — so whatever happens, you have a copy and a way to get it back. 5 sync modes | 5 cloud services | 4 platforms PROTECT WHAT MATTERS Set up a backup task once — choose what to protect and where it goes — then run it whenever you want. You decide what's backed up, and nothing moves your files in the background. EVERY CLOUD YOU USE Back up and sync your OneDrive, Google Drive, Dropbox, and more — connect as many as you need, all in one app instead of juggling five separate apps: • OneDrive • Google Drive • Dropbox • Box • Amazon S3 BACK UP BEYOND THE CLOUD Back up and sync straight to USB and external drives too, so you're covered even without an internet connection. Or keep files right on your device: Private Drive is secure in-app storage just for Sync, and Public Drive shares files with your other apps through Finder/Files. GET ANY FILE BACK Browse every file across every connected drive from one place, and pull back anything you need — no separate file manager required. CONTROL HOW YOUR FILES FLOW Five modes give you exact control over your file backup and cloud sync — not one-size-fits-all: • Full Sync • Backup • Restore • Backup Sync • Restore Sync The three sync modes — Full Sync, Backup Sync, and Restore Sync — only transfer changed files, so repeat runs stay fast. SHARE FILES OVER WI-FI Turn your device into a local web server: anyone on the same Wi-Fi can browse and download the files and folders you choose, straight from their browser. No cloud upload, no cables. READY ON EVERY DEVICE Also available for Android, macOS, and Windows — so you can back up from whatever device you're on. FREE TO START Connect one drive and try Sync at no cost (ad-supported, with usage limits). GO PREMIUM One upgrade unlocks every cloud service, USB and external drive support, and removes ads — as a subscription or a one-time lifetime purchase. Whatever happens — a new device, a bigger drive, or a file you need back — your files are ready. Download Sync and keep a copy of everything that matters. For additional help and guides, please visit https://sync.miciniti.com/help Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Contaker. Transfer contacts.4 screens
Sync4 screens

Verdict

The call

The clearest difference is rating: Sync at 3.7 against Contaker. Transfer contacts.'s 3.0. Sync also leads on ratings volume (26 vs 2) and review sentiment (50% vs 40%). Contaker. Transfer contacts.'s advantage is ads (none vs shown) and iOS requirement (9.0 vs 15.6). On price, update cadence, 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. Contaker. Transfer contacts. sells 3 in-app purchases, starting at $1.49 per month and Sync sells 11 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Sync holds the better App Store score, 3.7 against 3.0. That said, the two scores are not equally well evidenced: Sync has 26 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 40% of Contaker. Transfer contacts.'s written reviews are positive against 50% of Sync's.

UpkeepUpdate frequency

Contaker. Transfer contacts. ships an update monthly, Sync every 2 months. The most recent releases landed on September 26, 2026 and September 10, 2026 respectively.

Scorecard5 real differences · 5 level
Contaker. Transfer contacts. versus Sync: the parameters behind the verdict, then further details
ParameterContaker. Transfer contacts.Sync
PriceFreeFree
Rating3.0 (2 ratings)3.7 (26 ratings) — better
Positive reviews40.0% of reviews50.0% of reviews — better
Number of ratings226 — better
Update frequencyMonthly — betterEvery 2 months
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS9.0 — better15.6
Further details — not scored
Size155 MB18 MB
Age rating4+17+
DeveloperLLC Data HouseMiciniti Technologies

Customer experience

Contaker. Transfer contacts.

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews30 reviews
Positive40.0%
Neutral3.3%
Negative56.7%

Sync

All ratings26 ratings
Positive73.1%
Neutral0.0%
Negative26.9%
Written reviews12 reviews
Positive50.0%
Neutral8.3%
Negative41.7%

In-app purchases

3 purchases

Contaker. Transfer contacts.

Subscriptions2
  • Monthly subscription$1.491 Month
  • Annual subscription2 variants$10.491 Year
One-time1
  • Buy one$0.99
11 purchases

Sync

Subscriptions2
  • Monthly$1.991 Month
  • Yearly$14.991 Year
One-time9
  • 1-hour trial (Web Server)Free
  • Dropbox Drive$4.99
  • Google Drive$4.99
Show 6 more
  • OneDrive$4.99
  • Box Drive$4.99
  • Amazon S3 Drive$5.99
  • Public Drive$5.99
  • Web Server$5.99
  • Lifetime$39.99

Questions

Is Contaker. Transfer contacts. free?
Contaker. Transfer contacts. is free to download, with in-app purchases available.
Is Sync free?
Sync is free to download, with in-app purchases available.
Which has better reviews, Contaker. Transfer contacts. or Sync?
Sync is rated higher. Contaker. Transfer contacts. averages 3.0 out of 5 from 2 ratings, while Sync averages 3.7 from 26 ratings.
Do Contaker. Transfer contacts. or Sync have ads?
Sync shows ads; Contaker. Transfer contacts. does not.
Which is updated more often, Contaker. Transfer contacts. or Sync?
Contaker. Transfer contacts. ships an update monthly, and Sync every 2 months. Most recently, Contaker. Transfer contacts. was updated on September 26, 2026 and Sync on September 10, 2026.

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