# IDEA School vs Let's Smile 4

The clearest difference is update cadence: IDEA School at every 2 months against Let's Smile 4's every 19 months. Let's Smile 4's advantage is iOS requirement (10.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

IDEA School ships an update every 2 months, Let's Smile 4 every 19 months. The most recent releases landed on October 4, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | IDEA School | Let's Smile 4 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.0 (1 ratings)](https://appshunter.io/ios/app/lets-smile-4/id1566810330/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 19 months |
| Monetization | — | Free |
| Size | 37 MB | 914 MB |
| Requires iOS | 15.6 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tol Borin](https://appshunter.io/developer/1438133415) | [e-future Co., Ltd.](https://appshunter.io/developer/522346678) |

## What reviewers say

### IDEA School

[App page](https://appshunter.io/ios/app/idea-school/id1554118337)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Let's Smile 4

[App page](https://appshunter.io/ios/app/lets-smile-4/id1566810330)

This app offers a seven-level primary English course for young EFL learners. It uses engaging stories, songs, and games to build confidence and motivate students. The curriculum aligns with CEFR and YLE test objectives, integrating language learning with various school subjects and global topics.

**Highlights:** Animated stories and songs, Communicative games, CLIL lessons, Vocabulary and grammar progression, CEFR and YLE alignment, World culture lessons

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is IDEA School free?

IDEA School is free to download, with no in-app purchases.

### Is Let's Smile 4 free?

Let's Smile 4 is free to download, with no in-app purchases.

### Do IDEA School or Let's Smile 4 have ads?

Neither IDEA School nor Let's Smile 4 shows ads.

### Which is updated more often, IDEA School or Let's Smile 4?

IDEA School ships an update every 2 months, and Let's Smile 4 every 19 months. Most recently, IDEA School was updated on October 4, 2026 and Let's Smile 4 on October 15, 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.*