# Let's Go Lex! interactive tale vs Addition Math Trainer

The clearest difference is iOS requirement: Addition Math Trainer 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.

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

Let's Go Lex! interactive tale ships an update every 20 months, Addition Math Trainer every 35 months. The most recent releases landed on November 2, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Let's Go Lex! interactive tale | Addition Math Trainer |
| --- | --- | --- |
| Price | $2.99 | $2.99 |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/lets-go-lex-interactive-tale/id1180418477/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 20 months** | Every 35 months |
| Monetization | Paid | — |
| Size | 200 MB | 19 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Milena Jahier](https://appshunter.io/developer/1180418476) | [Sergey Malugin](https://appshunter.io/developer/562782409) |

## What reviewers say

### Let's Go Lex! interactive tale

[App page](https://appshunter.io/ios/app/lets-go-lex-interactive-tale/id1180418477)

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:** macOS Compatibility

**In-app purchases:** none


### Addition Math Trainer

[App page](https://appshunter.io/ios/app/addition-math-trainer/id1197851732)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Let's Go Lex! interactive tale free?

Let's Go Lex! interactive tale costs $2.99, with no in-app purchases.

### Is Addition Math Trainer free?

Addition Math Trainer costs $2.99, with no in-app purchases.

### Do Let's Go Lex! interactive tale or Addition Math Trainer have ads?

Neither Let's Go Lex! interactive tale nor Addition Math Trainer shows ads.

### Which is updated more often, Let's Go Lex! interactive tale or Addition Math Trainer?

Let's Go Lex! interactive tale ships an update every 20 months, and Addition Math Trainer every 35 months. Most recently, Let's Go Lex! interactive tale was updated on November 2, 2026 and Addition Math Trainer on November 6, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*