# History Learning vs PD

The clearest difference is in-app purchases: History Learning at none against PD's 2. History Learning also leads on iOS requirement (13.0 vs 15.0). PD's advantage is update cadence (monthly vs every 4 months). On price, ads and device support there is nothing between them.

Both are free to download. PD sells 2 in-app purchases, starting at $34.99 per month. History Learning asks for nothing beyond the download.

History Learning ships an update every 4 months, PD monthly. Both last shipped on October 13, 2026.

## The numbers

| Metric | History Learning | PD |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Monthly** |
| Size | 33 MB | 64 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Madhanrajan Varadharajan](https://appshunter.io/developer/1047714662) | [Learning Pit Limited](https://appshunter.io/developer/1829796990) |

## What reviewers say

### History Learning

[App page](https://appshunter.io/ios/app/history-learning/id6747940726)

**Features:** macOS Compatibility

**In-app purchases:** none


### PD

[App page](https://appshunter.io/ios/app/pd-od/id6749280469)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| App Monthly | $34.99 | per month |
| App Annual | $314.99 | per year |


## Frequently asked questions

### Is History Learning free?

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

### Is PD free?

PD is free to download, with in-app purchases available.

### Do History Learning or PD have ads?

Neither History Learning nor PD shows ads.

### Which is updated more often, History Learning or PD?

History Learning ships an update every 4 months, and PD monthly. Most recently, History Learning was updated on October 13, 2026 and PD on October 13, 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.*