# Train Clock vs What a surprise! Umaibo clock

The clearest difference is update cadence: What a surprise! Umaibo clock at every 3 weeks against Train Clock's every 23 months. What a surprise! Umaibo clock also leads on iOS requirement (10.0 vs 13.0). 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.

Train Clock ships an update every 23 months, What a surprise! Umaibo clock every 3 weeks. The most recent releases landed on October 26, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Train Clock | What a surprise! Umaibo clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/what-a-surprise-umaibo-clock/id1482602783/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 23 months | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 143 MB | 76 MB |
| Requires iOS | 13.0 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [hiroyuki uchida](https://appshunter.io/developer/669938829) | [Chariot](https://appshunter.io/developer/1128669103) |

## What reviewers say

### Train Clock

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

**In-app purchases:** none


### What a surprise! Umaibo clock

[App page](https://appshunter.io/ios/app/what-a-surprise-umaibo-clock/id1482602783)

This animated clock app features a character that "jacks" various anniversaries, with a special surprise event on November 11th. It includes an alarm function with official songs and character voices, making time-checking more engaging for fans.

**Highlights:** Animated character "jacking" anniversaries, Special surprise event on November 11th, Alarm function with official songs, Character voice alarms, Repdigit number special performance, Data updates for anniversaries

**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 a surprise! Umaibo clock free?

What a surprise! Umaibo clock is free to download, with no in-app purchases.

### Do Train Clock or What a surprise! Umaibo clock have ads?

Neither Train Clock nor What a surprise! Umaibo clock shows ads.

### Which is updated more often, Train Clock or What a surprise! Umaibo clock?

Train Clock ships an update every 23 months, and What a surprise! Umaibo clock every 3 weeks. Most recently, Train Clock was updated on October 26, 2026 and What a surprise! Umaibo clock on October 21, 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.*