# JL TUTORIAL vs 永續發展基礎

The clearest difference is device support: JL TUTORIAL at 2 against 永續發展基礎's —. JL TUTORIAL also leads on iOS requirement (15.6 vs 17.0). On price and in-app purchases there is nothing between them.

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

## The numbers

| Metric | JL TUTORIAL | 永續發展基礎 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Every 2 months | — |
| Size | 4 MB | 18 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPod** | — |
| Age rating | 4+ | 17+ |
| Developer | [政龍文教科技股份有限公司](https://appshunter.io/developer/998246052) | [Rich Yen](https://appshunter.io/developer/1766227047) |

## What reviewers say

### JL TUTORIAL

[App page](https://appshunter.io/ios/app/jl-tutorial/id511193025)

**Features:** macOS Compatibility

**In-app purchases:** none


### 永續發展基礎

[App page](https://appshunter.io/ios/app/id6670425246)

**In-app purchases:** none


## Frequently asked questions

### Is JL TUTORIAL free?

JL TUTORIAL is free to download, with no in-app purchases.

### Is 永續發展基礎 free?

永續發展基礎 is free to download, with no in-app purchases.

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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.*