Comparison

悠蓝壁纸 vs 4K Wallpapers

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

Head to head
About

悠蓝壁纸

Features
Read full description

悠蓝壁纸是一款提供用户AI创作壁纸的App,各种模型样式应有尽有! 【主要特点】 1. 提供用户AI创作能力,无需繁琐的步骤,用户仅需提供文字,就能生成精美的图片。 2. 提供主流的模型样式能力。 隐私政策:https://keemoo.top/paper/privacy

About

4K Wallpapers

Features
Read full description

Transform your device with our stunning wallpapers and backgrounds app designed to provide an unparalleled experience for personalizing your iPhone or iPad. We are offering ultra-high-quality wallpapers for iPhone in various categories, you’ll find the perfect 4K wallpaper background to suit your style. 4K Wallpapers: HD Wallpaper is your one-stop destination for all your iphone wallpaper needs. Key Features: Easy to Use: Set wallpapers on your home or lock screen. High-Quality Wallpapers: Optimized for HD, Full HD, and 4K devices. Favorites & Collections: Save your Favorite wallpapers and create personalized collections. 4K Wallpapers: Enjoy HD, Full HD, and 4K wallpapers. These Cute Wallpaper make your home and lock screen stand out. This 4K HD Wallpapers: Cool Backgrounds app provides high-quality 4K and 3D Wallpapers that fit perfectly on any screen size. 4K Wallpapers: HD Wallpaper App: With Exclusive wallpapers make your phone into a visual masterpiece with the iPhone 4K Wallpapers: HD Wallpaper. Our HD Wallpapers for iPhone app is designed to give your device a fresh, stylish, and dynamic look, with high-quality iPad wallpapers and eye-catching 3D wallpapers. We provide attractive categories of Cool Wallpaper like Cars wallpapers and Bike Wallpapers, Animal Wallpapers, lovers wallpapers, All Events Wallpapers, Dragon, Fire Flame Wallpapers, Nature Wallpapers, Smoke, and Space wallpapers. Transform your phone screen with 4k Wallpaper 3D Wallpapers set these HD wallpapers on your phone background or lock screen. We provide High Quality Wallpapers you can save on your phone and set Exclusive wallpapers on your phone when you needed. We offer a large range of HD Wallpaper categories including all varieties. Wallpaper Categories: Nature Wallpapers: Immerse yourself in the beauty of nature with wallpapers featuring breathtaking landscapes, lush forests, serene beaches, majestic mountains, and vibrant flowers. Perfect for nature lovers. Animals Wallpapers: Bring the animal kingdom to life with wallpapers showcasing adorable pets, wild creatures, Cute Cat Wallpapers, exotic birds, marine life, and much more. Great for animal lovers of all ages! Space & Galaxy wallpapers: Dive into the mysteries of the universe with cosmic-themed wallpapers. Featuring stars, planets, galaxies, and stunning space photography, this category is perfect for astronomy enthusiasts. Seasonal & Festive Wallpapers: Celebrate special occasions and holidays with themed wallpapers for Christmas, Halloween, New Year, and other festivals. Brighten your screen with seasonal cheer! Sports & Gaming Wallpapers: Show off your passion for sports or gaming with wallpapers featuring iconic athletes, popular games, team logos, or action-packed moments. Disclaimer: 4K Wallpapers: HD Wallpaper, app provides wallpapers for personal use only. All images available in the app are either sourced from public domains, licensed under fair use, or submitted by users with permission. If you believe any content violates copyright laws, please contact us immediately for removal.

Screenshots

悠蓝壁纸4 screens
4K Wallpapers4 screens

Verdict

The call

The clearest difference is in-app purchases: 4K Wallpapers at none against 悠蓝壁纸's 3. 4K Wallpapers also leads on update cadence (every 2 days vs every 10 days). 悠蓝壁纸's advantage is ads (none vs shown) and iOS requirement (13.0 vs 16.6). On price 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. 悠蓝壁纸 sells 3 one-off in-app purchases. 4K Wallpapers asks for nothing beyond the download.

UpkeepUpdate frequency

悠蓝壁纸 ships an update every 10 days, 4K Wallpapers every 2 days. The most recent releases landed on October 15, 2026 and November 2, 2026 respectively.

Scorecard4 real differences · 2 level
悠蓝壁纸 versus 4K Wallpapers: the parameters behind the verdict, then further details
Parameter悠蓝壁纸4K Wallpapers
PriceFreeFree
Update frequencyEvery 10 daysEvery 2 days — better
AdsNo — betterYes
In-app purchasesYesNo — better
DevicesiPhone, iPodiPhone, iPad
Requires iOS13.0 — better16.6
Further details — not scored
Size33 MB38 MB
Age rating17+12+
Developer阡陌四方(北京)科技有限公司Mazahr Kaleem

In-app purchases

3 purchases

悠蓝壁纸

One-time3
  • 悠蓝壁纸会员6个月套餐$2.99
  • 悠蓝壁纸12个月会员套餐$3.99
  • 悠蓝壁纸永久会员套餐$6.99
None

4K Wallpapers

No in-app purchases

Questions

Is 悠蓝壁纸 free?
悠蓝壁纸 is free to download, with in-app purchases available.
Is 4K Wallpapers free?
4K Wallpapers is free to download, with no in-app purchases.
Do 悠蓝壁纸 or 4K Wallpapers have ads?
4K Wallpapers shows ads; 悠蓝壁纸 does not.
Which is updated more often, 悠蓝壁纸 or 4K Wallpapers?
悠蓝壁纸 ships an update every 10 days, and 4K Wallpapers every 2 days. Most recently, 悠蓝壁纸 was updated on October 15, 2026 and 4K Wallpapers on November 2, 2026.

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