# Train Clock vs What the plane light

The clearest difference is ads: Train Clock at none against What the plane light's shown. Train Clock also leads on iOS requirement (13.0 vs 16.6). What the plane light's advantage is update cadence (every 3 months vs every 23 months). On price, 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.

Train Clock ships an update every 23 months, What the plane light every 3 months. The most recent releases landed on September 30, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Train Clock | What the plane light |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 23 months | **Every 3 months** |
| Size | 143 MB | 23 MB |
| Requires iOS | **13.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [hiroyuki uchida](https://appshunter.io/developer/669938829) | [Grigory Konovalov](https://appshunter.io/developer/1131979109) |

## What reviewers say

### Train Clock

[App page](https://appshunter.io/ios/app/train-clock/id1097870845)

**In-app purchases:** none


### What the plane light

[App page](https://appshunter.io/ios/app/what-the-plane-light/id1157490616)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Train Clock free?

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

### Is What the plane light free?

What the plane light is free to download, with no in-app purchases.

### Do Train Clock or What the plane light have ads?

What the plane light shows ads; Train Clock does not.

### Which is updated more often, Train Clock or What the plane light?

Train Clock ships an update every 23 months, and What the plane light every 3 months. Most recently, Train Clock was updated on September 30, 2026 and What the plane light on October 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.*