Comparison

KidsScript vs Book Builder

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

Head to head
About

KidsScript

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KidsScript is a full-fledged programming language app for kids and teens. Through visual block programming that is compatible with JavaScript, we have made it possible for even young children to use JavaScript. You can get used to programming while having fun creating various shapes and games. And from version 2.0, it supports hobby electronic work! You can program the currently popular microcontroller called ESP32 using KidsScript's code. And you can learn how to use various electronic parts, drive your own robot car, and do anything with your creativity! The app has a wide variety of samples and detailed tutorials, so please give it a try! [App's main specifications] ●Simple app No login or account creation is required. And this app doesn't contain ads. And it doesn't collect any personal information, so you can enjoy it casually. ●JavaScript compatible language The language of this app "KidsScript" is compatible with JavaScript 1.5 and allows JavaScript to be manipulated as visual blocks. Therefore, you can naturally get used to JavaScript through coding with this app. ●Appropriate age This app is mainly intended for children aged 13 and over. But even children as young as 9 years old can touch and play with the samples together with an adult. [ 9 - 12 years old ] - can play samples with adults - can create elementary programs with adults [ 13 - 15 years old ] - can do tutorials by oneself - can create elementary programs by oneself [ 16 - 17 years old ] - can understand all samples and tutorials - can create programs freely by oneself ●Supports Bluetooth communication By connecting two KidsScript apps via Bluetooth, you can create codes that communicate in real time. Therefore, you can also create online battle games! ●Supports ESP32 Targets ESP32-DevKitC-32E. By installing "KidsScript firmware" on the ESP32 side, KidsScript and ESP32 will be able to communicate via Bluetooth in real time, making it possible to code ESP32 with KidsScript. KidsScript firmware for ESP32 is distributed on the KidsScript official website. [URL] https://www.kidsscript.net/ ●More than 150 code samples included with this app It's fun just to look at various samples and play! ●More than 30 tutorials included with this app The app comes with an "interactive tutorial" that will teach you how to do it, so anyone can get started easily. Even if you have no programming experience, it's okay!

About

Book Builder

Empower children to become authors by creating their own digital books. This app provides characters, backgrounds, and text tools to help kids craft unique stories. Finished books can be read digitally or printed at home, fostering creativity and learning.

Highlights
  • Create custom storybooks
  • Add text with easy-to-use options
  • Use provided characters and backgrounds
  • Incorporate personal photos
  • Read books digitally
  • Print books at home
Features
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Become an author! Puppet Pals Book Builder empowers a child to create beautiful creative content. Characters and backgrounds are provided. Even add your own photos! Get started by adding text with many easy-to-use options. When you're done creating, read your book or print it out at home! Encourage life long learning and creativity!

Screenshots

KidsScript4 screens
Book Builder4 screens

Verdict

The call

The clearest difference is price: KidsScript at Free against Book Builder's $7.99. KidsScript also leads on iOS requirement (12.0 vs 17.0). On update cadence, 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

KidsScript is free to download; Book Builder costs $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 5 weeks. The most recent releases landed on September 15, 2026 and October 2, 2026 respectively.

Scorecard2 real differences · 8 level
KidsScript versus Book Builder: the parameters behind the verdict, then further details
ParameterKidsScriptBook Builder
PriceFree — better$7.99
Rating—4.8 (13 ratings) — better
Positive reviews—87.5% of reviews
Number of ratings—13 — better
Update frequencyEvery 5 weeksEvery 5 weeks
AdsNoNo
In-app purchasesNoNo
Monetization—Paid
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better17.0
Further details — not scored
Size38 MB173 MB
Age rating4+4+
DeveloperNextObject, LtdPolished Play, LLC

In-app purchases

None

KidsScript

No in-app purchases

None

Book Builder

No in-app purchases

Questions

Is KidsScript free?
KidsScript is free to download, with no in-app purchases.
Is Book Builder free?
Book Builder costs $7.99, with no in-app purchases.
Do KidsScript or Book Builder have ads?
Neither KidsScript nor Book Builder shows ads.
Which is updated more often, KidsScript or Book Builder?
KidsScript ships an update every 5 weeks, and Book Builder every 5 weeks. Most recently, KidsScript was updated on September 15, 2026 and Book Builder on October 2, 2026.

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