# Add Up 10. vs LD

The clearest difference is ads: LD at none against Add Up 10.'s shown. Add Up 10.'s advantage is device support (3 vs 1). On price, update cadence, in-app purchases and iOS requirement there is nothing between them.

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

Add Up 10. ships an update every 3 months, LD every 4 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | Add Up 10. | LD |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 3 months** | Every 4 months |
| Size | 58 MB | 122 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [MASAHIRO MIZUTANI](https://appshunter.io/developer/368158224) | [一般社団法人 日本LD学会](https://appshunter.io/developer/1373157749) |

## What reviewers say

### Add Up 10.

[App page](https://appshunter.io/ios/app/add-up-10/id562494612)

**In-app purchases:** none


### LD

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

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

**In-app purchases:** none


## Frequently asked questions

### Is Add Up 10. free?

Add Up 10. is free to download, with no in-app purchases.

### Is LD free?

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

### Do Add Up 10. or LD have ads?

Add Up 10. shows ads; LD does not.

### Which is updated more often, Add Up 10. or LD?

Add Up 10. ships an update every 3 months, and LD every 4 months. Most recently, Add Up 10. was updated on November 1, 2026 and LD on November 2, 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.*