Comparison

Sorting Stones vs KidX Classbox

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

Head to head
About

Sorting Stones

Features
Read full description

Our Sorting Stones app is available as a multi-platform resource, which means that you can enjoy this exciting software on your favourite device! Simply use your licence to activate the app on your iPad(s) and/or computer(s). Sort, match and categorise objects of different size, color and shape. Designed to build on these skills, the three games in this app enable children to match and sort based on one criterion – shape, color and size – before moving on to additional criteria or more complex attributes. Teacher options provide the facility to change modes, set the number of rounds and adjust the complexity. FEATURES * Match objects by a range of attributes. * Sort objects by a range of attributes. * Use settings to manage the options available. * A Read Me file including ideas to develop pre-coding skills away from a screen. * No third-party advertising. * No in-app purchases. WHO IS YELLOW DOOR? We are a publisher offering a range of inspiring and innovative resources. From multisensory games to interactive software, we combine hands-on learning with open-ended technology to promote communication and language, collaborative play and creativity across the curriculum. Our aim is to produce resources that are appealing to small hands and curious minds, and that will help build an engaging, playful learning environment for all young children. OTHER APPS FROM YELLOW DOOR Pre-Writing App Letter Recognition App Letter Formation App I-Spy Initial Sounds App Initial Sounds Bubble App Find the Rhyme App I’ve Got a Feeling App Number Formation App Come Alive Traditional Tales (6 individual apps) Come Alive Nursery Rhymes Come Alive Sound and Letters Come Alive Listening. Bugs and Bees Early Number: Count. Match and Order Bugs and Bees Early Number: Number Patterns and Bonds Pre-coding Penguins Dinosaur Bones: Match and Measure REVIEW THE APP We would love to know what you think of our new app, so please leave a review!

About

KidX Classbox

This interactive educational toy combines physical play with online learning for children aged 3-8. It teaches fundamental math and logic skills using Montessori and Brain/Logic training methods. The app allows children to learn anytime, anywhere, bridging offline activities with online lessons.

Highlights
  • Montessori-based math education
  • Brain and Logic training
  • Interactive online lessons
  • Offline play integration
  • Suitable for ages 3-8
  • Tablet-based learning
Features
Read full description

KidX Classbox is designed for children 3 to 8 years old and will teach fundamental mathematics based on Montessori, Brain and Logic training based on Harvard and National Insitute of Health. It is an interactive educational toy that bridges physical play with online interactive learning on a tablet. KidX blends the best of online learning with offline play allowing children to learn any time anywhere. The KidX device is simple to use. Simply turn it on, connect to your tablet and start learning (and playing!) Online lessons also prompt a child for offline interaction.

Verdict

The call

The clearest difference is update cadence: KidX Classbox at every 2 months against Sorting Stones's every 38 months. KidX Classbox also leads on iOS requirement (9.0 vs 13.0). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Sorting Stones ships an update every 38 months, KidX Classbox every 2 months. Both last shipped on November 3, 2026.

Scorecard2 real differences · 8 level
Sorting Stones versus KidX Classbox: the parameters behind the verdict, then further details
ParameterSorting StonesKidX Classbox
PriceFreeFree
Rating—1.0 (2 ratings) — better
Positive reviews—0.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 38 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPadiPad
Requires iOS13.09.0 — better
Further details — not scored
Size15 MB82 MB
Age rating4+4+
DeveloperYellow Door LtdSUZHOU COURTESY EDUCATION TECHNOLOGY CO., LTD

In-app purchases

None

Sorting Stones

No in-app purchases

None

KidX Classbox

No in-app purchases

Questions

Is Sorting Stones free?
Sorting Stones is free to download, with no in-app purchases.
Is KidX Classbox free?
KidX Classbox is free to download, with no in-app purchases.
Do Sorting Stones or KidX Classbox have ads?
Neither Sorting Stones nor KidX Classbox shows ads.
Which is updated more often, Sorting Stones or KidX Classbox?
Sorting Stones ships an update every 38 months, and KidX Classbox every 2 months. Most recently, Sorting Stones was updated on November 3, 2026 and KidX Classbox on November 3, 2026.

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