# Jump Scare vs Lie / Truth Detector

The clearest difference is rating: Lie / Truth Detector at 4.0 against Jump Scare's 1.8. Lie / Truth Detector also leads on review sentiment (44% vs 11%) and update cadence (monthly vs every 9 months). Jump Scare's advantage is in-app purchases (none vs 3) and ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Lie / Truth Detector sells 3 one-off in-app purchases. Jump Scare asks for nothing beyond the download.

Lie / Truth Detector holds the better App Store score, 4.0 against 1.8. That said, the two scores are not equally well evidenced: Lie / Truth Detector has 306 ratings behind it against 13, so its average is the more settled of the two. Written reviews point the same way: 11% of Jump Scare's written reviews are positive against 44% of Lie / Truth Detector's.

Jump Scare ships an update every 9 months, Lie / Truth Detector monthly. Both last shipped on October 22, 2026.

## The numbers

| Metric | Jump Scare | Lie / Truth Detector |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.8 (13 ratings)](https://appshunter.io/ios/app/jump-scare/id680184828/reviews) | **[4.0 (306 ratings)](https://appshunter.io/ios/app/lie-truth-detector-polygraph/id1558500142/reviews)** |
| Number of ratings | 13 | **306** |
| Positive reviews | 10.7% of reviews | **44.4% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 9 months | **Monthly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 9 MB | 120 MB |
| Requires iOS | **7.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [AppsbyMe](https://appshunter.io/developer/521096935) | [Luis Hernando Prada](https://appshunter.io/developer/1554735315) |

## What reviewers say

### Jump Scare

[App page](https://appshunter.io/ios/app/jump-scare/id680184828)

This app allows you to prank your friends by triggering sudden scares. You can then share the reactions with others through various social media platforms and messaging services.

**Highlights:** Trigger sudden scares, Share reactions, Social media sharing, Email sharing, Message sharing, Print option

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

**In-app purchases:** none


### Lie / Truth Detector

[App page](https://appshunter.io/ios/app/lie-truth-detector-polygraph/id1558500142)

Simulate a lie or truth detector with this fun app. Analyze what your friends and family say and see if the simulated polygraph detects truth or lies. Features fantastic graphics and effects for hours of entertainment.

**Highlights:** Simulates lie/truth detection, Polygraph simulation, Fantastic graphics, Engaging effects, Hours of fun

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove the ads | $2.99 | one-time |
| AI Detector | $3.99 | one-time |
| All features + no ads | $5.99 | one-time |


## Frequently asked questions

### Is Jump Scare free?

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

### Is Lie / Truth Detector free?

Lie / Truth Detector is free to download, with in-app purchases available.

### Which has better reviews, Jump Scare or Lie / Truth Detector?

Lie / Truth Detector is rated higher. Jump Scare averages 1.8 out of 5 from 13 ratings, while Lie / Truth Detector averages 4.0 from 306 ratings.

### Do Jump Scare or Lie / Truth Detector have ads?

Lie / Truth Detector shows ads; Jump Scare does not.

### Which is updated more often, Jump Scare or Lie / Truth Detector?

Jump Scare ships an update every 9 months, and Lie / Truth Detector monthly. Most recently, Jump Scare was updated on October 22, 2026 and Lie / Truth Detector on October 22, 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.*