# Robo Flags. vs LD

The clearest difference is ads: LD at none against Robo Flags.'s shown. Robo Flags.'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.

Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on October 2, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Robo Flags. | LD |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | Every 4 months |
| Size | 59 MB | 172 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

### Robo Flags.

[App page](https://appshunter.io/ios/app/robo-flags/id675525282)

**Features:** Vision Pro support

**In-app purchases:** none


### LD

[App page](https://appshunter.io/ios/app/ld-skaip/id1375375145)

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

**In-app purchases:** none


## Frequently asked questions

### Is Robo Flags. free?

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

### Is LD free?

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

### Do Robo Flags. or LD have ads?

Robo Flags. shows ads; LD does not.

### Which is updated more often, Robo Flags. or LD?

Robo Flags. ships an update every 4 months, and LD every 4 months. Most recently, Robo Flags. was updated on October 2, 2026 and LD on October 18, 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.*