Comparison

Resilio Sync vs Sync with S3

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

Head to head
About

Resilio Sync

Securely transfer files and back up photos between your devices without using third-party servers. Enjoy unlimited storage and speed, with direct peer-to-peer transfers for privacy and efficiency. Supports all file types across various platforms.

Highlights
  • Private cloud creation
  • Secure direct file transfers
  • Unlimited storage and speed
  • Automatic camera backup
  • Cross-platform device support
  • Selective file syncing
Read full description

Sync is the best way to transfer files between your Mac, PC, NAS, and even server. Create your own private cloud. Connect devices and sync files securely without sending them on third-party servers. We don’t limit your speed or storage space: our technology works especially well with huge files. No storage limits • Sync as much data as you have on your hard drives. Automatic camera backup • Sync will back up photos and videos as soon as you take them. • You can then delete photos from your phone and save space. Direct transfers, no cloud • Your information is never stored on servers in the cloud, so nobody can access it without your permission. • Transfer files directly and fast using peer-to-peer technology (p2p). Any device and platform • Access folders and upload files to your tablet, PC, Mac, NAS, and even server. Supports all file types • Add photos, videos, music, docs, and PDFs from other apps to any of your synced folders. Save space • Selective Sync lets you save only the files you need. To get the best performance and to avoid running up your data charges while syncing folders, we recommend leaving the "Use Cellular Data" setting off. By downloading or using this app, you agree to the Terms of Use: (https://www.resilio.com/legal/terms-of-use), Privacy Policy (https://www.resilio.com/legal/privacy) and End User License Agreement (https://www.resilio.com/legal/eula-sync).

About

Sync with S3

Automatically back up your phone's photos and videos to S3 storage, preserving your album and folder structure. It mirrors your library, uploads edited media and Live Photos, and ensures your S3 storage matches your device without deleting any original files.

Highlights
  • Syncs photo library to S3
  • Preserves album and folder hierarchy
  • Uploads edited photos and videos
  • Supports Live Photos video component
  • One-way sync, no phone data deletion
  • Selective folder/album syncing
Read full description

Sync for S3 synchronizes your phone’s photo library, including the album and folder hierarchy, to your S3 storage. For users who like to organize their photos into folders and albums, Sync will also - Sync automatically creates folders and albums you may have created in your phone’s photo library on S3 storage. - Uploads the video component for Live Photos. - Uploads the edited versions of photos and videos. - Mirror or backup your photo library. - Synchronize your entire photo library or only certain folders and albums. In summary, each time you run Sync, it will make sure any changes to your phone’s photo library are updated on your S3 storage, overwriting, renaming, uploading, and deleting items on your S3 storage if needed. Sync will also NEVER delete any photos from your phone. Sync performs a ONE-WAY sync only, making your S3 storage match your phone’s photo library. Any changes made on your S3 storage will not be synced to your phone, rather, the changes on your S3 storage will simply be overwritten the next time you run a Sync. Free Plan The free plan is limited to syncing up to 3 top-level folders and albums and up to 200 photos. Premium Plan Our affordable premium plan removes all restrictions and unlocks access to all future features. Subscription Pricing and Terms - Annual or monthly subscription billing will start immediately after you subscribe and will auto-renew each year or month. - Subscriptions will automatically renew unless canceled at least one day before the renewal date within 24 hours before the end of the current period. Payment will be charged to your Apple ID account at the confirmation of purchase. You can manage and cancel your subscription by going to your account settings in the App Store. - Subscriptions are non-refundable, so please choose this option carefully. - Please refer to the In-App Purchases section for pricing. Terms of Use — https://www.apple.com/legal/internet-services/itunes/dev/stdeula Privacy Policy — https://sync.photosplus.app/privacy.php

Screenshots

Resilio Sync4 screens
Sync with S34 screens

Verdict

The call

The clearest difference is review sentiment: Resilio Sync at 77% against Sync with S3's 0%. Resilio Sync also leads on rating (4.5 vs 1.0) and in-app purchases (none vs 2). Sync with S3's advantage is ads (none vs shown) and update cadence (every 2 months vs every 3 months). On price, monetization model 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. Sync with S3 sells 2 in-app purchases, starting at $2.99 per month. Resilio Sync asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Resilio Sync holds the better App Store score, 4.5 against 1.0. That said, the two scores are not equally well evidenced: Resilio Sync has 844 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 77% of Resilio Sync's written reviews are positive against 0% of Sync with S3's.

UpkeepUpdate frequency

Resilio Sync ships an update every 3 months, Sync with S3 every 2 months. The most recent releases landed on October 12, 2026 and October 2, 2026 respectively.

Scorecard7 real differences · 3 level
Resilio Sync versus Sync with S3: the parameters behind the verdict, then further details
ParameterResilio SyncSync with S3
PriceFreeFree
Rating4.5 (844 ratings) — better1.0 (1 ratings)
Positive reviews77.3% of reviews — better0.0% of reviews
Number of ratings844 — better1
Update frequencyEvery 3 monthsEvery 2 months — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS11 — better15.6
Further details — not scored
Size31 MB27 MB
Age rating4+4+
DeveloperResilio Inc.Pixegram, LLC

Customer experience

Resilio Sync

All ratings844 ratings
Positive88.5%
Neutral3.6%
Negative7.9%
Written reviews611 reviews
Positive77.3%
Neutral8.2%
Negative14.6%

Sync with S3

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Bugs and requests

Resilio Sync

Reported bugs

3 issues
  • Syncing issues after iOS updates
  • Inconsistent behavior when removing folders
  • Camera roll backup not working as expected

Requested features

4 requests
  • Improved iOS integration with Files app
  • Background sync for camera roll backup
  • Built-in media player and gallery view
  • Ability to select and move multiple files at once

Sync with S3

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Resilio Sync

No in-app purchases

2 purchases

Sync with S3

Subscriptions2
  • Premium - Monthly$2.991 Month
  • Premium - Yearly$19.991 Year

Questions

Is Resilio Sync free?
Resilio Sync is free to download, with no in-app purchases.
Is Sync with S3 free?
Sync with S3 is free to download, with in-app purchases available.
Which has better reviews, Resilio Sync or Sync with S3?
Resilio Sync is rated higher. Resilio Sync averages 4.5 out of 5 from 844 ratings, while Sync with S3 averages 1.0 from 1 ratings.
Do Resilio Sync or Sync with S3 have ads?
Resilio Sync shows ads; Sync with S3 does not.
Which is updated more often, Resilio Sync or Sync with S3?
Resilio Sync ships an update every 3 months, and Sync with S3 every 2 months. Most recently, Resilio Sync was updated on October 12, 2026 and Sync with S3 on October 2, 2026.

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