Comparison

Flow Wallpapers 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

Flow Wallpapers

This app creates unique, auto-animating wallpapers that react when you wake your device. Customize your lock screen with your own text and choose from a growing library of dynamic designs. Enjoy a gentle animation every time you unlock your phone.

Highlights
  • Auto-animating wallpapers
  • Customizable text
  • Unique color shades and contrast
  • Lock screen animation
  • Regular wallpaper updates
  • Save and set wallpapers easily
Features
Read full description

Flow is one of a kind app that achieves a state of animation using various color shades and contrast levels which will greet you with a gentle animation when you raise to wake or open your lock screen. Flow wallpapers are specific wallpaper that have been tested hundreds of times in order to get the perfect shades and contrast levels that will look best on your device. With flow you can generate your own wallpaper, with your own text which will behave the same way, this is done in device and in a brief period of time. More wallpapers are added. To set a wallpaper simply save one to your photos library and go to the Settings app>Wallpapers>Camera Roll and choose the wallpaper you just saved, you can either set it as still or perspective both will work fine and set it on your lock screen. Lock your device and tap the home button or rise to wake in order to bring up the lock screen and you should notice the animation effect on the wallpaper. Flow wallpapers will work on any iPhone that can run the app. To get the animation effect you have to lock and unlock your device an you will see the wallpaper come to life gradually. You can now subscribe to premium for $0.99/week or use the one time purchase for unlimited lifetime access. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal. Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. Terms of use: https://www.unicornapps.com/flow-wallpapers-terms-of-use/ Privacy Policy: https://www.unicornapps.com/flow-privacy-policy/ support@unicornapps.com

About

4K Wallpapers

Discover and set stunning high-resolution wallpapers for your phone. Personalize your device with a vast, frequently updated collection of images in various styles. Save, favorite, and share your chosen backgrounds with ease.

Highlights
  • Top quality 4K wallpapers
  • Compatible with all iPhone models
  • Frequently updated database
  • Personalize phone backgrounds
  • Save wallpapers to device
  • Manage favorites
  • Share wallpapers via social media
Features
Read full description

If you are interested in cool images or want to get cool keys into the HD cool phone background world, high-resolution cool wallpapers will surprise you! You can illustrate your unique wallpapers and enjoy decorating your phone backgrounds every day. Come on and attempt to on your IOS phone immediately! -> What makes our application different - Wallpapers 4K ? - Top quality wallpapers. - All 4K wallpapers are compatible with all iPhones models. - Database frequently updated. - Simple intuitive menu. - Setting "4K wallpaper" with one click. - A large database, carefully moderated and gradually expanded. - Allows you to personalize your phone. - Wallpapers in various styles, such as: modern, industrial, glamor, vintage, etc. - Daily analysis of comments on AppStore and adapting the application to the wishes of users. - The ability to save wallpaper in the device's memory - Manage your "favorites". - Shares selected wallpapers to friends via social media accounts, MMS or email - Limited amount of ads. 4K quality wallpapers is a way to make your screen stand out in a beautiful way. All wallpapers in the highest quality. Possibility to set 4K wallpaper on screen, download to gallery and lock screen settings. A large 4K photo database that is constantly being expanded with new ones, divided into popular ones such as: love wallpapers, landscapes or misto at night. Wallpapers are recognized and automatically adjusted to the screens of your phones.  Finally, some of the biggest advantages of the "Beautiful Wallpapers 4K" application is because we are constantly increasing the number of wallpapers, so everyone will find something for themselves. High quality compared to competing applications. We invite you to test the application with 4K photos. LEGAL INFO: All images and photos used in "Beautiful Wallpapers 4K" are under public domain license and/or Creative Commons’ license. Please report bugs at bopeniang.ltd@gmail.com We value your feedback, so if you’re enjoying the app, please leave a rating and a review. Also, feel free to leave comments suggesting what you'd like to see in the next update.

Screenshots

Flow Wallpapers4 screens
4K Wallpapers4 screens

Verdict

The call

The clearest difference is in-app purchases: 4K Wallpapers at none against Flow Wallpapers's 2. Flow Wallpapers's advantage is ads (none vs shown) and update cadence (every 10 days vs every 3 months). On price, review sentiment 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. Flow Wallpapers sells 2 in-app purchases, starting at $0.99 per 7 days. 4K Wallpapers asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Flow Wallpapers holds the better App Store score, 4.6 against 4.3. That said, the two scores are not equally well evidenced: Flow Wallpapers has 1.3K ratings behind it against 54, so its average is the more settled of the two. Written reviews point the same way: 49% of Flow Wallpapers's written reviews are positive against 44% of 4K Wallpapers's.

UpkeepUpdate frequency

Flow Wallpapers ships an update every 10 days, 4K Wallpapers every 3 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

Scorecard7 real differences · 3 level
Flow Wallpapers versus 4K Wallpapers: the parameters behind the verdict, then further details
ParameterFlow Wallpapers4K Wallpapers
PriceFreeFree
Rating4.6 (1.3K ratings) — better4.3 (54 ratings)
Positive reviews49.1% of reviews — better44.4% of reviews
Number of ratings1.3K — better54
Update frequencyEvery 10 days — betterEvery 3 months
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS11.0 — better15.0
Further details — not scored
Size17 MB53 MB
Age rating4+4+
DeveloperRonan StarkJerome Melis

Customer experience

Flow Wallpapers

All ratings1,288 ratings
Positive90.3%
Neutral4.1%
Negative5.6%
Written reviews53 reviews
Positive49.1%
Neutral5.7%
Negative45.3%

4K Wallpapers

All ratings44 ratings
Positive84.1%
Neutral4.5%
Negative11.4%
Written reviews9 reviews
Positive44.4%
Neutral11.1%
Negative44.4%

Bugs and requests

Flow Wallpapers

Reported bugs

3 issues
  • Wallpapers not animating as expected
  • Compatibility issues with newer devices
  • Errors when trying to save wallpapers

Requested features

3 requests
  • Preview wallpapers before purchase
  • Improved search and filtering
  • Customization options for animations

4K Wallpapers

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

Flow Wallpapers

Subscriptions1
  • Flow Premium Subscription$0.997 Days
One-time1
  • Flow Premium$2.99
None

4K Wallpapers

No in-app purchases

Questions

Is Flow Wallpapers free?
Flow Wallpapers is free to download, with in-app purchases available.
Is 4K Wallpapers free?
4K Wallpapers is free to download, with no in-app purchases.
Which has better reviews, Flow Wallpapers or 4K Wallpapers?
Flow Wallpapers is rated higher. Flow Wallpapers averages 4.6 out of 5 from 1.3K ratings, while 4K Wallpapers averages 4.3 from 54 ratings.
Do Flow Wallpapers or 4K Wallpapers have ads?
4K Wallpapers shows ads; Flow Wallpapers does not.
Which is updated more often, Flow Wallpapers or 4K Wallpapers?
Flow Wallpapers ships an update every 10 days, and 4K Wallpapers every 3 months. Most recently, Flow Wallpapers was updated on November 2, 2026 and 4K Wallpapers on November 3, 2026.

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