# 3,2,1 Launch! vs Electron In Transistor Kingdom

The clearest difference is in-app purchases: 3,2,1 Launch! at none against Electron In Transistor Kingdom's 3. Electron In Transistor Kingdom's advantage is update cadence (every 6 weeks vs every 13 months) and iOS requirement (12.0 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. Electron In Transistor Kingdom sells 3 one-off in-app purchases. 3,2,1 Launch! asks for nothing beyond the download.

3,2,1 Launch! ships an update every 13 months, Electron In Transistor Kingdom every 6 weeks. The most recent releases landed on October 15, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | 3,2,1 Launch! | Electron In Transistor Kingdom |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/321-launch/id6471444553/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 6 weeks** |
| Monetization | Free | — |
| Size | 1008 MB | 115 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [NASA](https://appshunter.io/developer/355542146) | [Oleksandr Elmuratov](https://appshunter.io/developer/1794325308) |

## What reviewers say

### 3,2,1 Launch!

[App page](https://appshunter.io/ios/app/321-launch/id6471444553)

Experience the journey of a spacecraft from selection to launch. This game features 8 mini-games that educate players on the engineering and processes involved in sending a spacecraft into orbit.

**Highlights:** Rocket and spacecraft matching, Engineering analysis, Spacecraft cleaning, Rocket assembly, Fueling process, Orbit targeting

**In-app purchases:** none


### Electron In Transistor Kingdom

[App page](https://appshunter.io/ios/app/electron-in-transistor-kingdom/id6741711452)

**Features:** Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 100 Electrons | $0.99 | one-time |
| No ads | $1.99 | one-time |
| 1000 Electrons | $2.99 | one-time |


## Frequently asked questions

### Is 3,2,1 Launch! free?

3,2,1 Launch! is free to download, with no in-app purchases.

### Is Electron In Transistor Kingdom free?

Electron In Transistor Kingdom is free to download, with in-app purchases available.

### Do 3,2,1 Launch! or Electron In Transistor Kingdom have ads?

Neither 3,2,1 Launch! nor Electron In Transistor Kingdom shows ads.

### Which is updated more often, 3,2,1 Launch! or Electron In Transistor Kingdom?

3,2,1 Launch! ships an update every 13 months, and Electron In Transistor Kingdom every 6 weeks. Most recently, 3,2,1 Launch! was updated on October 15, 2026 and Electron In Transistor Kingdom on October 7, 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.*