Comparison

Kid Calculator vs Numberblocks World

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

Head to head
About

Kid Calculator

Engage children in math with a fun, interactive talking calculator. Explore numbers, aliens, and rockets with hidden surprises. Designed for kids by a 9-year-old.

Highlights
  • Interactive math learning
  • Talking calculator
  • Fun number exploration
  • Hidden surprises
  • Kid-designed interface
Features
Read full description

Make learning math fun and exciting with this delightful talking calculator! You and your children will have a blast with numbers, aliens, a rocket, and hidden surprises with this calculator. This is an app made for kids, by a kid! It is imagined, developed, and voiced by 9 year old Yuma Soerianto.

About

Numberblocks World

This app offers an animated adventure to help children master numbers through engaging videos and games. It provides a fun and exciting way to build confidence and enjoyment in mathematics, aligned with early years curricula.

Highlights
  • 100+ math-themed episodes
  • Numeracy games and quizzes
  • Progressive learning levels
  • Subitising and counting games
  • Ad-free and COPPA/GDPR-K compliant
Features
Read full description

Get ready for a unique animated adventure! Packed with number magic that you can count on to help your child master numbers in an easy and exciting way, Numberblocks World helps build confidence in and enjoyment of maths. Numberblocks World is a fun with numbers video on demand and games subscription app aimed at kids aged 3+ with a core age group of 4 to 6 year olds, brought to you by the BAFTA award-winning team at Alphablocks Ltd. and Blue Zoo Animations Studio. 1, 2, 3 − Let’s go! ** How does Numberblocks World help your child? ** 1. Maths is SO much easier when you can see how it works. 100+ episodes bring hundreds of essential number skills to life with big visuals and amazing animation, from your first encounter with One to mini-musicals, classic comedy, song-and-dance numbers and a nail-biting escape from the double dungeon of doom, your child can enjoy a choice of numeracy-led adventures. 2. An educational learning journey packed with numeracy games and regular quizzes to show how well your little learner has mastered each step. 3. Created together with experts from the NCETM (National Centre for Excellence in the Teaching of Mathematics) and presented in levels that help children progress through the different stages of number skills, Numberblocks is compatible with all early years curricula. 4. This app is fun, educational and safe, being COPPA and GDPR-K compliant. 5. All presented through a safe, 100% ad-free, digital world for your child to explore. ** Featuring… ** • The full Numberblocks series of 90 Numberblocks episodes presented in 5 easy-to-follow levels. • Enjoyable number songs, designed to help children grow in number confidence. • Three subitising games, helping children to recognise quantity. • A fabulous counting game, allowing children to progress from counting in 1s to counting in 2s, 5s and 10s. • A quiz, hosted by our game show host Numberblock 6, so little learners can see if they need to go back over the previous videos or whether they're ready to progress along the learning journey. N.B. Episode length might vary in different regions. ** Numberblocks Subscription ** • Numberblocks World offers a free 7 day trial. • Subscription lengths vary from Monthly to Yearly. • The price of the subscription might differ depending on the plan you choose and the region you are in. • Payment will be charged to your Apple account at the time of purchase. • You can cancel your subscription at any time through your App Store account settings and turn off auto renewal through your App Store account settings. • Any unused amount of a free trial period, when offered, will be forfeited at the point when a user purchases a subscription, where applicable. • Accounts will be charged for renewal within 24-hours prior to the end of the current period unless auto-renew is turned off at least 24-hours before the end of the current period. ** Privacy & Safety ** At Numberblocks your child’s privacy and safety is a number one priority for us. There are no ads in the app and we will never share personal information with any 3rd parties or sell this on. You can find out more in our Privacy Policy and Terms of Service: Privacy Policy: https://www.learningblocks.tv/privacy-policy Terms of Service: https://www.learningblocks.tv/terms-of-service

Screenshots

Kid Calculator2 screens
Numberblocks World4 screens

Verdict

The call

The clearest difference is price: Numberblocks World at Free against Kid Calculator's $0.99. Numberblocks World also leads on rating (4.1 vs 3.5) and update cadence (every 3 weeks vs every 13 months). Kid Calculator's advantage is review sentiment (86% vs 44%) and in-app purchases (none vs 2). On 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

Numberblocks World is free to download; Kid Calculator costs $0.99 up front. Numberblocks World sells 2 in-app purchases, starting at $7.99 per month. Kid Calculator asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Numberblocks World holds the better App Store score, 4.1 against 3.5. That said, the two scores are not equally well evidenced: Numberblocks World has 336 ratings behind it against 18, so its average is the more settled of the two. Written reviews complicate that: 86% of Kid Calculator's written reviews are positive against 44% of Numberblocks World's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Kid Calculator ships an update every 13 months, Numberblocks World every 3 weeks. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.

Scorecard8 real differences · 2 level
Kid Calculator versus Numberblocks World: the parameters behind the verdict, then further details
ParameterKid CalculatorNumberblocks World
Price$0.99Free — better
Rating3.5 (18 ratings)4.1 (336 ratings) — better
Positive reviews85.7% of reviews — better43.9% of reviews
Number of ratings18336 — better
Update frequencyEvery 13 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS10.0 — better15.0
Further details — not scored
Size37 MB640 MB
Age rating4+4+
DeveloperHendri SoeriantoBlue-Zoo

Customer experience

Kid Calculator

All ratings19 ratings
Positive63.2%
Neutral10.5%
Negative26.3%
Written reviews21 reviews
Positive85.7%
Neutral4.8%
Negative9.5%

Numberblocks World

All ratings336 ratings
Positive75.3%
Neutral7.1%
Negative17.6%
Written reviews558 reviews
Positive43.9%
Neutral13.1%
Negative43.0%

Bugs and requests

Kid Calculator

Not enough reviews yet to summarise bugs or requests.

Numberblocks World

Reported bugs

6 issues
  • Freezing and crashing
  • Videos not loading
  • Glitches in games and activities
  • Subscription not working properly
  • Incorrect answers in games
Show 1 more
  • Numberblocks characters not displaying properly

Requested features

6 requests
  • Add new Numberblocks characters (42, 48, 54, 56, 63, 72)
  • Offline mode
  • Ability to reset progress
  • Subtitles/captions for videos
  • More games and activities
Show 1 more
  • Ability to track individual child progress

In-app purchases

None

Kid Calculator

No in-app purchases

2 purchases

Numberblocks World

Subscriptions2
  • Monthly Subscription7 Days trial$7.991 Month
  • Yearly Subscription7 Days trial$29.991 Year

Questions

Is Kid Calculator free?
Kid Calculator costs $0.99, with no in-app purchases.
Is Numberblocks World free?
Numberblocks World is free to download, with in-app purchases available.
Which has better reviews, Kid Calculator or Numberblocks World?
Numberblocks World is rated higher. Kid Calculator averages 3.5 out of 5 from 18 ratings, while Numberblocks World averages 4.1 from 336 ratings.
Do Kid Calculator or Numberblocks World have ads?
Neither Kid Calculator nor Numberblocks World shows ads.
Which is updated more often, Kid Calculator or Numberblocks World?
Kid Calculator ships an update every 13 months, and Numberblocks World every 3 weeks. Most recently, Kid Calculator was updated on November 2, 2026 and Numberblocks World on November 4, 2026.

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