Comparison

Let's Go Lex! interactive tale vs Subtraction Skill Builders

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

Head to head
About

Let's Go Lex! interactive tale

An interactive story application for young children that encourages language learning through reading and listening in multiple languages. It features engaging characters, music, sound effects, and a puzzle at the end.

Highlights
  • Interactive storybook
  • Multilingual narration (English, Spanish, Chinese, Italian)
  • Read-a-loud options
  • Highlighted text
  • Engaging characters and animations
  • End-of-story puzzle
  • Sound effects and music
Features
Read full description

An interactive story application, you can choose to read and/or listen in any of these languages: English, Spanish, Chinese, Italian. Let's Go Lex! Join a cheery hippo in this bookish and interactive story application with highlighted text and read-a-loud options in English, Spanish, Chinese and Italian to encourage language learning. While reading and playing along, your child will encounter many cute characters and listen to a sweet melody or discover catchy sounds, like a bubble pop or a frog croak. An engaging little tale for 1-5 year olds with plenty of kid fun, and a puzzle with animation at the end. Story: Enjoy a musical ride down the river with Lex the hippo, and the frogs. Join this bizarre team of friends as they unleash their imagination and tackle trouble together. As the story unfolds, you will discover many surprising interactions and animations, and when the adventure comes to an end, don’t go away…stick around and play with a puzzle, there’s a little surprise for those who can complete it! Important: The automatic page turn on your device should remain disabled, pages should be turned manually. Access to the different languages is available from all pages by touching the ‘app menu’ symbol and subsequently the language icon inside this menu to choose the desired language. Have fun!

About

Subtraction Skill Builders

Features
Read full description

Elevate your subtraction practice with Subtraction Skill Builders! Experience natural handwriting input and choose between: Math Trainer – a whiteboard to write answers at your own pace 5 fun, engaging Math mini games with adaptive difficulty With Subtraction Skill Builders you can practice and improve the following math skills: - Subtracting 1 - Subtracting 2 - Subtracting 3 - Subtracting 4 - Subtracting 5 - Subtracting 6 - Subtracting 7 - Subtracting 8 - Subtracting 9 - Subtracting 10

Screenshots

Let's Go Lex! interactive tale4 screens
Subtraction Skill Builders4 screens

Verdict

The call

The clearest difference is iOS requirement: Subtraction Skill Builders at 12.0 against Let's Go Lex! interactive tale's 15.0. On price, update cadence, ads and in-app purchases 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

Let's Go Lex! interactive tale costs $2.99 and Subtraction Skill Builders $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Let's Go Lex! interactive tale ships an update every 20 months, Subtraction Skill Builders every 28 months. The most recent releases landed on September 23, 2026 and October 8, 2026 respectively.

Scorecard1 real difference · 8 level
Let's Go Lex! interactive tale versus Subtraction Skill Builders: the parameters behind the verdict, then further details
ParameterLet's Go Lex! interactive taleSubtraction Skill Builders
Price$2.99$2.99
Rating5.0 (3 ratings) — better—
Number of ratings3 — better—
Update frequencyEvery 20 months — betterEvery 28 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.012.0 — better
Further details — not scored
Size200 MB18 MB
Age rating4+4+
DeveloperMilena JahierSergey Malugin

In-app purchases

None

Let's Go Lex! interactive tale

No in-app purchases

None

Subtraction Skill Builders

No in-app purchases

Questions

Is Let's Go Lex! interactive tale free?
Let's Go Lex! interactive tale costs $2.99, with no in-app purchases.
Is Subtraction Skill Builders free?
Subtraction Skill Builders costs $2.99, with no in-app purchases.
Do Let's Go Lex! interactive tale or Subtraction Skill Builders have ads?
Neither Let's Go Lex! interactive tale nor Subtraction Skill Builders shows ads.
Which is updated more often, Let's Go Lex! interactive tale or Subtraction Skill Builders?
Let's Go Lex! interactive tale ships an update every 20 months, and Subtraction Skill Builders every 28 months. Most recently, Let's Go Lex! interactive tale was updated on September 23, 2026 and Subtraction Skill Builders on October 8, 2026.

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