# LD vs 学SAPO

LD and 学SAPO are too close to call on the numbers: across 3 compared parameters — price, in-app purchases and iOS requirement among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

## The numbers

| Metric | LD | 学SAPO |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Every 4 months | — |
| Size | 122 MB | 3 MB |
| Requires iOS | **16.0** | 17.2 |
| Devices | **iPad** | — |
| Age rating | 4+ | 4+ |
| Developer | [一般社団法人 日本LD学会](https://appshunter.io/developer/1373157749) | [Kouichi INAFUKU](https://appshunter.io/developer/438372899) |

## What reviewers say

### LD

[App page](https://appshunter.io/ios/app/ld-skaip/id1373157750)

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

**In-app purchases:** none


### 学SAPO

[App page](https://appshunter.io/ios/app/sapo/id6477853090)

**In-app purchases:** none


## Frequently asked questions

### Is LD free?

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

### Is 学SAPO free?

学SAPO 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.*