# Surprised!ReactionTimeChecker? vs CatEye

The clearest difference is in-app purchases: Surprised!ReactionTimeChecker? at none against CatEye's 1. Surprised!ReactionTimeChecker? also leads on device support (3 vs 1) and iOS requirement (15.6 vs 26.2). CatEye's advantage is ads (none vs shown). On price there is nothing between them.

Both are free to download. CatEye sells 1 one-off in-app purchase. Surprised!ReactionTimeChecker? asks for nothing beyond the download.

## The numbers

| Metric | Surprised!ReactionTimeChecker? | CatEye |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 6 months | — |
| Monetization | Ad-supported | — |
| Size | 24 MB | 8 MB |
| Requires iOS | **15.6** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [NSC, K.K.](https://appshunter.io/developer/501890400) | [kou works](https://appshunter.io/developer/1871986162) |

## 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


### CatEye

[App page](https://appshunter.io/ios/app/cateye/id6759896469)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアム | $1.99 | one-time |


## Frequently asked questions

### Is Surprised!ReactionTimeChecker? free?

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

### Is CatEye free?

CatEye is free to download, with in-app purchases available.

### Do Surprised!ReactionTimeChecker? or CatEye have ads?

Surprised!ReactionTimeChecker? shows ads; CatEye does not.

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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.*