# WhenDo vs KidNCode

The clearest difference is update cadence: KidNCode at weekly against WhenDo's monthly. KidNCode also leads on device support (3 vs 1). WhenDo's advantage is iOS requirement (8.1 vs 15.0). On price, ads and in-app purchases there is nothing between them.

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

WhenDo ships an update monthly, KidNCode weekly. The most recent releases landed on October 2, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | WhenDo | KidNCode |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Monetization | Free | — |
| Size | 22 MB | 3 MB |
| Requires iOS | **8.1** | 15.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Shanghai Zhiwei Robotics Co Ltd](https://appshunter.io/developer/643548685) | [KidNCode Inc.](https://appshunter.io/developer/1753005788) |

## What reviewers say

### WhenDo

[App page](https://appshunter.io/ios/app/whendo/id1001086940)

This tool provides a graphical programming environment for learning Arduino. It simplifies coding by allowing users to drag and combine blocks to create programs. The app supports wireless downloads to compatible Arduino devices and utilizes a cloud server for compilation.

**Highlights:** Graphical programming with drag-and-drop blocks, Clear logic structure (When, Centre Node, Do blocks), Cloud server compilation, Wireless BLE downloads, Compatible with Bluetooth 4.0 Arduino chips

**Features:** macOS Compatibility

**In-app purchases:** none


### KidNCode

[App page](https://appshunter.io/ios/app/kidncode/id6504601052)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is WhenDo free?

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

### Is KidNCode free?

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

### Do WhenDo or KidNCode have ads?

Neither WhenDo nor KidNCode shows ads.

### Which is updated more often, WhenDo or KidNCode?

WhenDo ships an update monthly, and KidNCode weekly. Most recently, WhenDo was updated on October 2, 2026 and KidNCode on October 15, 2026.

---

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