# Lie Detector vs Rival Ranks

The clearest difference is in-app purchases: Rival Ranks at none against Lie Detector's 8. Rival Ranks also leads on ads (none vs shown) and update cadence (every 5 days vs every 7 months). Lie Detector's advantage is device support (3 vs 1) and iOS requirement (15.6 vs 17.0). On price there is nothing between them.

Both are free to download. Lie Detector sells 8 in-app purchases, starting at $0.99 per 7 days. Rival Ranks asks for nothing beyond the download.

Lie Detector ships an update every 7 months, Rival Ranks every 5 days. The most recent releases landed on October 20, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Lie Detector | Rival Ranks |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (1.2K ratings)](https://appshunter.io/ios/app/lie-detector-true-false-test/id1642503184/reviews)** | — |
| Number of ratings | **1.2K** | — |
| Positive reviews | 41.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 7 months | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 41 MB | 76 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [AppLiks Sp. z O.O.](https://appshunter.io/developer/1804335622) | [ZDTech Group](https://appshunter.io/developer/1840570326) |

## What reviewers say

### Lie Detector

[App page](https://appshunter.io/ios/app/lie-detector-true-false-test/id1642503184)

This app simulates lie detection using fingerprint and voice scanning for entertainment. It's designed for playful interactions with friends and family, allowing you to share facts and see if they're true or false. Customize results for added fun.

**Highlights:** Fingerprint scanning simulation, Voice analysis simulation, Face scanning simulation, Customizable scan results, Entertainment for friends and family

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Access | $0.99 | per 7 days |
| Lie Detector Premium Pack | $1.99 | per 7 days |
| Weekly Access | $1.99 | per 7 days |
| Monthly Access | $2.99 | per month |
| Yearly Access | $2.99 | per year |
| Lie Detector Test Pro | $2.99 | per month |
| Yearly Access | $5.99 | per year |
| Lie Detector Premium | $5.99 | per year |

**What reviewers like**

- 🤩 Fun and entertaining
- 👍 Engaging gameplay
- 😄 Brings laughter to gatherings

**What reviewers complain about**

- 🔒 Locked features behind paywall
- 🐛 Inconsistent performance
- 🤔 Questionable accuracy of lie detection

**Reported bugs**

- App crashes after a few uses
- Fingerprint scanner not working properly
- Subscription issues and inability to cancel

**Requested features**

- Unlock all features for free
- Improve lie detection algorithm
- Add more question types and scenarios


### Rival Ranks

[App page](https://appshunter.io/ios/app/rival-ranks/id6748307883)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Lie Detector free?

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

### Is Rival Ranks free?

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

### Do Lie Detector or Rival Ranks have ads?

Lie Detector shows ads; Rival Ranks does not.

### Which is updated more often, Lie Detector or Rival Ranks?

Lie Detector ships an update every 7 months, and Rival Ranks every 5 days. Most recently, Lie Detector was updated on October 20, 2026 and Rival Ranks on October 8, 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.*