# Surprised!ReactionTimeChecker? vs スマッシュ！

The clearest difference is ads: スマッシュ！ at none against Surprised!ReactionTimeChecker?'s shown. スマッシュ！ also leads on update cadence (every 11 days vs every 6 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

Surprised!ReactionTimeChecker? ships an update every 6 months, スマッシュ！ every 11 days. The most recent releases landed on November 1, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Surprised!ReactionTimeChecker? | スマッシュ！ |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 6 months | **Every 11 days** |
| Monetization | Ad-supported | — |
| Size | 24 MB | 41 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 12+ |
| Developer | [NSC, K.K.](https://appshunter.io/developer/501890400) | [HIDEKI TAMAI](https://appshunter.io/developer/6782431323) |

## What reviewers say

### Surprised!ReactionTimeChecker?

[App page](https://appshunter.io/ios/app/surprisedreactiontimechecker/id553393907)

This app captures photos of users when they are startled by sudden fear images. It's designed for playful pranks to surprise friends and family, documenting their genuine reactions. Note that it utilizes sound effects even in silent mode and requires camera permissions.

**Highlights:** Sudden fear image display, Captures user's surprised photo, Sound effects in silent mode, Requires camera permission, Prank and surprise friends

**In-app purchases:** none


### スマッシュ！

[App page](https://appshunter.io/ios/app/id6801764628)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Surprised!ReactionTimeChecker? free?

Surprised!ReactionTimeChecker? is free to download, with no in-app purchases.

### Is スマッシュ！ free?

スマッシュ！ is free to download, with no in-app purchases.

### Do Surprised!ReactionTimeChecker? or スマッシュ！ have ads?

Surprised!ReactionTimeChecker? shows ads; スマッシュ！ does not.

### Which is updated more often, Surprised!ReactionTimeChecker? or スマッシュ！?

Surprised!ReactionTimeChecker? ships an update every 6 months, and スマッシュ！ every 11 days. Most recently, Surprised!ReactionTimeChecker? was updated on November 1, 2026 and スマッシュ！ on October 25, 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.*