# Surprised!ReactionTimeChecker? vs VOICEMO

Surprised!ReactionTimeChecker? and VOICEMO are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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, VOICEMO every 4 months. The most recent releases landed on November 1, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Surprised!ReactionTimeChecker? | VOICEMO |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 6 months | **Every 4 months** |
| Monetization | Ad-supported | — |
| Size | 24 MB | 4 MB |
| Requires iOS | 15.6 | **14.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [NSC, K.K.](https://appshunter.io/developer/501890400) | [kohei yamane](https://appshunter.io/developer/1239055575) |

## 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


### VOICEMO

[App page](https://appshunter.io/ios/app/voicemo/id1526800192)

**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 VOICEMO free?

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

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

Both Surprised!ReactionTimeChecker? and VOICEMO show ads.

### Which is updated more often, Surprised!ReactionTimeChecker? or VOICEMO?

Surprised!ReactionTimeChecker? ships an update every 6 months, and VOICEMO every 4 months. Most recently, Surprised!ReactionTimeChecker? was updated on November 1, 2026 and VOICEMO on November 7, 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.*