Comparison

Sandbox vs UNICORN

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

Head to head
About

Sandbox

Engage in a pixel art coloring experience with a vast library of images. This app offers a fun and educational activity for children and families, promoting creativity and skill development. Turn your own photos into pixel art or explore a free drawing mode.

Highlights
  • Pixel art coloring by number
  • Photo to pixel art conversion
  • Free drawing mode
  • Searchable art library
  • Magic Round Button for similar art
  • Art collections
  • Hints for interesting art
Features
Read full description

Welcome to the Sandbox Coloring Universe and be ready to become a lover of the coloring of tiny pixel art. Four facts about Sandbox: • Children feel how light, sweet and funny Sandbox is and that it's made just for them. It’s like cartoons, but they can participate in the performance, not only watch. • Parents know it’s a great way for the whole family to spend time together. No Ads. Only safe art. • Specialists know Sandbox is a great opportunity to work on your children’s or parents’ drawing and motor skills. • Teachers know Sandbox is a great way to teach their kids or students basic number recognition and how to use a legend. Features available for all: • Search whatever you want, fruits, lips, gadgets, cats or maybe easy art. Handy search feature filters all content for you. • Magic Round Button helps you to find similar art. Just try it and you'll love it. • Collections give you an opportunity to organize all your art in the app. • Free Drawing Mode lets you practice drawing pixel art. The best art will be featured. • Turning your photos from the gallery into pixel art. No words needed. • Hints highlight the most interesting art especially for you. The Sandbox membership gives you an access to all the tiny pixel art in the application. Try the 7 day trial period and if you enjoy Sandbox, do nothing and your membership automatically continues for as long as you choose to remain a member. The base subscription fee will be 2.99$/week after the 7 day trial period or 7.99$/month or 39.99$/year. Payment will be charged to iTunes Account at confirmation of purchase. Subscriptions automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period. An account will be charged for renewal within 24 hours prior to the end of the current period at the rate of your selected plan. Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user’s Account Settings on the device. Terms of Service: https://sandbox.love/terms.html Privacy Policy: https://sandbox.love/privacy.html Best regards, Sandbox Team [with love]

About

UNICORN

Unwind and de-stress by creating digital art through a simple number-based coloring system. Follow the numbers to fill pixel boxes and watch your creations come to life with a time-lapse video. Share your finished masterpieces with friends and family.

Highlights
  • Number-based pixel coloring
  • Develops fine motor skills
  • Time lapse video of creation
  • Share artwork on social media
  • Anti-stress coloring experience
Features
Read full description

Creating modern masterpieces of digital art is simpler than ever! Enjoy the art of true coloring with Unicorn adult coloring book. It really makes time fly! Just shelter from the stress of life and complete a variety of unique anti-stress pictures. It’s so fun and so easy to color you don’t have to be good at art! Just follow the numbers in pixel boxes. A special color palette at the bottom will suggest what number is what color. Key Features: • Perfectly develops fine motor skills • Paint easily any image and watch short Time Lapse video at the end • Share with friends on Instagram, Twitter or Facebook Messenger • Perfect relaxing way to become the master of your own mind Be careful not to get too addicted and let’s fill the pixels in! SUBSCRIPTION PRICING AND TERMS Subscription options: Weekly Premium Membership offers $2.99 weekly subscription after 3-day free trial for unlocking all content, features and removing ads. Weekly Premium Membership offers $7.99 weekly subscription after 3-day free trial for unlocking all content, features and removing ads. Weekly Gold Membership offers $9.99 weekly subscription after 3-day free trial for unlocking all content, features and removing ads. Weekly Membership offers $9.99 weekly subscription for unlocking all content, features and removing ads. Monthly Gold Membership offers $19.99 monthly subscription for unlocking all content, features and removing ads. Annually Premium Membership offers $49.99 annual subscription for unlocking all content, features and removing ads. End of trial and subscription renewal: This price is for United States customers. Pricing in other countries may vary and actual charges may be converted to your local currency depending on the country of residence. Payment will be charged to iTunes Account at confirmation of purchase. 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. Privacy Policy: https://docs.akita.ge/policies/privacy-policy Terms of Use: https://docs.akita.ge/policies/terms-of-use Join us on Instagram: https://www.instagram.com/unicorn_application/ Join us on Facebook: https://www.facebook.com/UnicornColoringApp

Screenshots

Sandbox3 screens
UNICORN4 screens

Verdict

The call

The clearest difference is ads: Sandbox at none against UNICORN's shown. Sandbox also leads on update cadence (every 4 days vs monthly). UNICORN's advantage is iOS requirement (13.0 vs 17.0). On price, rating, review sentiment and ratings volume 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. Sandbox sells 5 in-app purchases, starting at $2.99 per 7 days and UNICORN sells 10 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for Sandbox against 4.7 for UNICORN. Both are backed by a comparable volume of ratings — 977K and 461K respectively. Written reviews are what separate them: 74% of Sandbox's written reviews are positive against 71% of UNICORN's.

UpkeepUpdate frequency

Sandbox ships an update every 4 days, UNICORN monthly. Both last shipped on September 24, 2026.

Scorecard3 real differences · 7 level
Sandbox versus UNICORN: the parameters behind the verdict, then further details
ParameterSandboxUNICORN
PriceFreeFree
Rating4.7 (977K ratings)4.7 (461K ratings)
Positive reviews74.1% of reviews — better70.7% of reviews
Number of ratings977K — better461K
Update frequencyEvery 4 days — betterMonthly
AdsNo — betterYes
In-app purchasesYesYes
MonetizationSubscriptionSubscription
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.013.0 — better
Further details — not scored
Size9 MB154 MB
Age rating4+12+
DeveloperAlexey GrigorkinAPPSYOULOVE LTD

Customer experience

Sandbox

All ratings977,416 ratings
Positive93.7%
Neutral3.6%
Negative2.7%
Written reviews2,292 reviews
Positive74.1%
Neutral7.7%
Negative18.2%

UNICORN

All ratings460,610 ratings
Positive92.2%
Neutral4.1%
Negative3.7%
Written reviews2,126 reviews
Positive70.7%
Neutral9.3%
Negative20.0%

User reviews

Sandbox

From 977K App Store ratings

What we love

  • 🚀 Relaxing and addictive
  • 👍 Wide variety of pictures
  • 👍 No ads
  • 👍 Animated pictures
  • 👍 Ability to create own drawings

Room to improve

  • 💰 Many good pictures locked behind paywall
  • 🐛 Issues with color palette not showing completed colors
  • 🐛 Glitches with zooming and panning
  • 🔋 Battery drain

UNICORN

From 461K App Store ratings

What we love

  • 🎨 Fun and relaxing coloring experience
  • 👍 Ability to import and color own photos
  • 🦄 Unique and creative designs

Room to improve

  • 💰 Expensive subscription model ($8/week)
  • 🌐 Limited free content, most locked behind paywall
  • 🐛 Occasional crashes and bugs
  • 🔍 Difficulty finding specific colors/numbers

Bugs and requests

Sandbox

Reported bugs

3 issues
  • Palette not showing completed colors correctly
  • Zooming and panning issues
  • Offline mode issues

Requested features

6 requests
  • Add search bar to find specific pictures
  • Separate completed pictures from unfinished ones
  • Ability to import and color own photos
  • Progressive difficulty levels
  • Collaborative coloring with friends
Show 1 more
  • Tracking stats like total pictures colored

UNICORN

Reported bugs

3 issues
  • Imported photos appearing black
  • Colored squares resetting unexpectedly
  • Ads not loading properly

Requested features

4 requests
  • More free coloring options
  • Ability to create and share custom designs
  • Improved save/load functionality
  • Better organization of content

In-app purchases

5 purchases

Sandbox

Subscriptions5
  • Gorgeous Sandbox7 Days trial$2.997 Days
  • Monthly Sandbox.$3.491 Month
  • Pandy's Sandbox$7.991 Month
Show 2 more
  • Annual Sandbox.$19.491 Year
  • Handsome Sandbox$39.991 Year
10 purchases

UNICORN

Subscriptions9
  • Premium Weekly3 Days trial$2.997 Days
  • Color by Number Magic$4.997 Days
  • Color by Number - Magic Mode3 Days trial$7.997 Days
Show 6 more
  • Color by Number Magic$8.997 Days
  • Color by Number - Magic Mode3 Days trial$9.997 Days
  • Color by Number Magic Unicorn$9.997 Days
  • Gold Monthly$14.991 Month
  • Premium Annually$49.991 Year
  • Unicorn Annually Premium7 Days trial$49.991 Year
One-time1
  • Unicorn Bombs Medium Pack$5.99

Questions

Is Sandbox free?
Sandbox is free to download, with in-app purchases available.
Is UNICORN free?
UNICORN is free to download, with in-app purchases available.
Which has better reviews, Sandbox or UNICORN?
Sandbox and UNICORN are both rated 4.7 out of 5 on the App Store, from 977K and 461K ratings respectively.
Do Sandbox or UNICORN have ads?
UNICORN shows ads; Sandbox does not.
Which is updated more often, Sandbox or UNICORN?
Sandbox ships an update every 4 days, and UNICORN monthly. Most recently, Sandbox was updated on September 24, 2026 and UNICORN on September 24, 2026.

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