# Surprised!ReactionTimeChecker? vs 遊びはＡＣＴ

The clearest difference is review sentiment: Surprised!ReactionTimeChecker? at 100% against 遊びはＡＣＴ's 25%. 遊びはＡＣＴ's advantage is ads (none vs shown) and update cadence (every 2 months vs every 6 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.

Surprised!ReactionTimeChecker? ships an update every 6 months, 遊びはＡＣＴ every 2 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Surprised!ReactionTimeChecker? | 遊びはＡＣＴ |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **100.0% of reviews** | 25.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 6 months | **Every 2 months** |
| Monetization | Ad-supported | — |
| Size | 24 MB | 7 MB |
| Requires iOS | 15.6 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 17+ |
| Developer | [NSC, K.K.](https://appshunter.io/developer/501890400) | [HEIWA SHOJI INC.](https://appshunter.io/developer/896975892) |

## 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


### 遊びはＡＣＴ

[App page](https://appshunter.io/ios/app/id896975889)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Surprised!ReactionTimeChecker? free?

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

### Is 遊びはＡＣＴ free?

遊びはＡＣＴ is free to download, with no in-app purchases.

### Do Surprised!ReactionTimeChecker? or 遊びはＡＣＴ have ads?

Surprised!ReactionTimeChecker? shows ads; 遊びはＡＣＴ does not.

### Which is updated more often, Surprised!ReactionTimeChecker? or 遊びはＡＣＴ?

Surprised!ReactionTimeChecker? ships an update every 6 months, and 遊びはＡＣＴ every 2 months. Most recently, Surprised!ReactionTimeChecker? was updated on October 23, 2026 and 遊びはＡＣＴ on October 24, 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.*