# LD vs PBS Classroom

The clearest difference is update cadence: LD at every 4 months against PBS Classroom's every 12 months. 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.

LD ships an update every 4 months, PBS Classroom every 12 months. The most recent releases landed on October 16, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | LD | PBS Classroom |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 12 months |
| Size | 122 MB | 18 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [一般社団法人 日本LD学会](https://appshunter.io/developer/1373157749) | [Kanako Otsui](https://appshunter.io/developer/1491099559) |

## What reviewers say

### LD

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

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

**In-app purchases:** none


### PBS Classroom

[App page](https://appshunter.io/ios/app/pbs-classroom/id1491099560)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is LD free?

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

### Is PBS Classroom free?

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

### Do LD or PBS Classroom have ads?

Neither LD nor PBS Classroom shows ads.

### Which is updated more often, LD or PBS Classroom?

LD ships an update every 4 months, and PBS Classroom every 12 months. Most recently, LD was updated on October 16, 2026 and PBS Classroom on October 3, 2026.

---

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