Comparison

U vs Rabbit Sync

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

Head to head
About

U

Browse, edit, and manage photos stored on your U-NAS device. Organize them into albums and view them chronologically. Share photos and albums with friends and sync between your mobile device and U-NAS.

Highlights
  • Browse U-NAS photos
  • Online photo editing
  • Photo management
  • Album creation and management
  • Timeline view
  • Photo sharing
  • Mobile to U-NAS sync
Features
Read full description

U-Photo可以让您轻松的浏览U-NAS上的照片,在线编辑、管理照片,创建和管理相册,照片可以以时间轴的方式清晰的呈现。您也可以通过分享功能将照片或者相册分享给您的好友。您可以将移动设备中拍摄的照片上传到U-NAS,也可将U-NAS上的照片下载到移动设备中,随时浏览。(注:U-Photo必须U-NAS设备上的相册管理器支持才可以启用)

About

Rabbit Sync

This app backs up your iOS camera photos and videos to a local server using WebDAV. It downloads originals from iCloud, preserving all EXIF metadata for a complete backup of your memories.

Highlights
  • Syncs photos and videos
  • Supports WebDAV protocol
  • Downloads originals from iCloud
  • Preserves EXIF metadata
  • Local server backup
Features
Read full description

The app syncs iOS camera-captured photos and videos in their original format to a local file service, only supporting WebDAV. The process includes downloading original photos from iCloud and their complete EXIF metadata, ensuring full backup of precious memories.

Screenshots

U4 screens
Rabbit Sync4 screens

Verdict

The call

The clearest difference is review sentiment: Rabbit Sync at 100% against U's 0%. Rabbit Sync also leads on rating (5.0 vs 1.0) and update cadence (weekly vs every 3 months). U's advantage is in-app purchases (none vs 2) and iOS requirement (11.0 vs 15.0). On price, ratings volume, ads 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. Rabbit Sync sells 2 in-app purchases, starting at $0.99 per month. U asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Rabbit Sync holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews point the same way: 0% of U's written reviews are positive against 100% of Rabbit Sync's.

UpkeepUpdate frequency

U ships an update every 3 months, Rabbit Sync weekly. The most recent releases landed on June 1, 2026 and September 7, 2026 respectively.

Scorecard6 real differences · 4 level
U versus Rabbit Sync: the parameters behind the verdict, then further details
ParameterURabbit Sync
PriceFreeFree
Rating1.0 (1 ratings)5.0 (1 ratings) — better
Positive reviews0.0% of reviews100.0% of reviews — better
Number of ratings11
Update frequencyEvery 3 monthsWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better15.0
Further details — not scored
Size67 MB2 MB
Age rating17+4+
Developer宁波万由电子科技有限公司晓光 张

Customer experience

U

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

Rabbit Sync

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

U

No in-app purchases

2 purchases

Rabbit Sync

Subscriptions2
  • Monthly Subscription7 Days trial$0.991 Month
  • Yearly Subscription7 Days trial$11.001 Year

Questions

Is U free?
U is free to download, with no in-app purchases.
Is Rabbit Sync free?
Rabbit Sync is free to download, with in-app purchases available.
Which has better reviews, U or Rabbit Sync?
Rabbit Sync is rated higher. U averages 1.0 out of 5 from 1 ratings, while Rabbit Sync averages 5.0 from 1 ratings.
Do U or Rabbit Sync have ads?
Neither U nor Rabbit Sync shows ads.
Which is updated more often, U or Rabbit Sync?
U ships an update every 3 months, and Rabbit Sync weekly. Most recently, U was updated on June 1, 2026 and Rabbit Sync on September 7, 2026.

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