Comparison

Natural Number Kid vs Pi Sequence

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

Head to head
About

Natural Number Kid

Features
Read full description

Give your little one a head start with Natural Number Kid, a fun and engaging way for toddlers and young kids to explore numbers. Designed for curious minds, this app is perfect for encouraging learning: * Learn to count in multiple languages. * Learn place value by sliding the digits up and down to see how numbers change. * Save numbers for later with an interactive stack. * Automatically translate the numbers in fourteen languages. * Understand numbers with a growing library of visualizations! With colorful visuals and intuitive controls, Natural Number Kid makes learning numbers simple, engaging, and fun! Features: * Easy-to-use interface. * No ads, no distractions. * Self-paced and engaging. * Perfect for preschoolers, elementary learners, and people of all ages! Download Natural Number Kid today and build a strong foundation in math!

About

Pi Sequence

Features
Read full description

Pi Sequence: Memorize Pi helps you train your memory by practicing the digits of pi in a simple, focused way. Practice number sequences, test your recall, and build your ability to remember more digits over time. Whether you are learning the first few digits of pi or challenging yourself to go further, Pi Sequence gives you a clean space to practice, repeat, and improve. Features: โ€ข Practice pi digit sequences โ€ข Test your memory and recall accuracy โ€ข Find your birthday in the digits of pi โ€ข Track your progress as you memorize more digits โ€ข Challenge yourself with focused number memory training โ€ข Simple, distraction-free experience Pi Sequence Pro: Unlock unlimited practice and memory challenges. Terms of Use: https://gobefar.com/pisequence/terms Privacy Policy: https://gobefar.com/pisequence/privacy

Screenshots

Natural Number Kid4 screens
Pi Sequence4 screens

Verdict

The call

The clearest difference is in-app purchases: Natural Number Kid at none against Pi Sequence's 1. Natural Number Kid also leads on update cadence (every 5 days vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Pi Sequence sells 1 one-off in-app purchase. Natural Number Kid asks for nothing beyond the download.

UpkeepUpdate frequency

Natural Number Kid ships an update every 5 days, Pi Sequence every 3 months. The most recent releases landed on October 5, 2026 and October 10, 2026 respectively.

Scorecard2 real differences ยท 4 level
Natural Number Kid versus Pi Sequence: the parameters behind the verdict, then further details
ParameterNatural Number KidPi Sequence
PriceFreeFree
Update frequencyEvery 5 days โ€” betterEvery 3 months
AdsNoNo
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.217.0 โ€” better
Further details โ€” not scored
Size2 MB29 MB
Age rating4+4+
DeveloperAlterscope Solutions LLCๆ™“็ต ๆฝ˜

In-app purchases

None

Natural Number Kid

No in-app purchases

1 purchases

Pi Sequence

One-time1
  • Unlock Pro$3.99

Questions

Is Natural Number Kid free?
Natural Number Kid is free to download, with no in-app purchases.
Is Pi Sequence free?
Pi Sequence is free to download, with in-app purchases available.
Do Natural Number Kid or Pi Sequence have ads?
Neither Natural Number Kid nor Pi Sequence shows ads.
Which is updated more often, Natural Number Kid or Pi Sequence?
Natural Number Kid ships an update every 5 days, and Pi Sequence every 3 months. Most recently, Natural Number Kid was updated on October 5, 2026 and Pi Sequence on October 10, 2026.

Other comparisons