# D4S Service vs learning.redcross

The clearest difference is update cadence: learning.redcross at every 3 weeks against D4S Service's every 57 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.

D4S Service ships an update every 57 months, learning.redcross every 3 weeks. The most recent releases landed on September 8, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | D4S Service | learning.redcross |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 57 months | **Every 3 weeks** |
| Size | 82 MB | 57 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Department of Land Transport Thailand](https://appshunter.io/developer/1437216014) | [The Thai Red Cross Society](https://appshunter.io/developer/1481812826) |

## What reviewers say

### D4S Service

[App page](https://appshunter.io/ios/app/d4s-service/id1437493424)

**Features:** macOS Compatibility

**In-app purchases:** none


### learning.redcross

[App page](https://appshunter.io/ios/app/learningredcross/id1622132682)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is D4S Service free?

D4S Service is free to download, with no in-app purchases.

### Is learning.redcross free?

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

### Do D4S Service or learning.redcross have ads?

Neither D4S Service nor learning.redcross shows ads.

### Which is updated more often, D4S Service or learning.redcross?

D4S Service ships an update every 57 months, and learning.redcross every 3 weeks. Most recently, D4S Service was updated on September 8, 2026 and learning.redcross on September 10, 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.*