Lie Detector Truth Test vs Authenticator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Lie Detector Truth Test
Simulate a lie detector test using your device's screen and microphone. Analyze spoken words to determine if they are a truth or a lie, perfect for pranks and entertainment with friends and family.
- Fingerprint and voice scan simulation
- Analyzes spoken words for truth/lie
- Realistic computer voice
- Prank mode
- Amazing graphics and sounds
- Hilarious fun
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The best truth and lie detector test app. Download now! Place your fingers on the screen and say something to find out if it is a truth or a lie. Make your friends and family laugh by saying funny things and finding out if they are true or false! Features: - Lie detector analyses what you say - Amazing graphics and sounds - Realistic computer voice - Prank mode - Hours of hilarious fun! Disclaimer: This lie detector app is intended for entertainment purposes only and does not provide real truth detector functionality.
Authenticator
Simulate biometric authentication for creative projects. This app allows you to choose between palm, retina, or fingerprint scans, or passcode entry. Customize the outcome to always fail, always succeed, or use an override for demonstrations.
- Fake palm scanner
- Fake retina scanner
- Fake fingerprint scanner
- Passcode entry simulation
- Customizable authentication outcomes
- Override authentication option
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An app for fake authentication for movie prop, plays, or demonstrations. Choose to scan palm, retina, fingerprint, or enter a passcode. Choose to always fail, always authenticate, or a variety of options, including an override to authenticate.
Screenshots
Verdict
The clearest difference is in-app purchases: Authenticator at none against Lie Detector Truth Test's 1. Authenticator also leads on rating (5.0 vs 4.6) and update cadence (every 2 days vs every 3 months). Lie Detector Truth Test's advantage is ratings volume (49K vs 3). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Lie Detector Truth Test sells 1 one-off in-app purchase. Authenticator asks for nothing beyond the download.
Authenticator holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Lie Detector Truth Test has 49K ratings behind it against 3, so its average is the more settled of the two.
Lie Detector Truth Test ships an update every 3 months, Authenticator every 2 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.
| Parameter | Lie Detector Truth Test | Authenticator |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (49K ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 51.1% of reviews | — |
| Number of ratings | 49K — better | 3 |
| Update frequency | Every 3 months | Every 2 days — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 167 MB | 4 MB |
| Age rating | 12+ | 4+ |
| Developer | First Class Media B.V. | Harden Consulting LLC |
Customer experience
Lie Detector Truth Test
Authenticator
Bugs and requests
Lie Detector Truth Test
Reported bugs
3 issues- Crashes on some devices
- Fingerprint scanning issues
- Incorrect results for true statements
Requested features
3 requests- Reduce ads
- Improve accuracy and consistency
- Add voice detection option
Authenticator
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Lie Detector Truth Test
- Remove ads$1.99
Authenticator
No in-app purchases
Questions
Is Lie Detector Truth Test free?
Is Authenticator free?
Which has better reviews, Lie Detector Truth Test or Authenticator?
Do Lie Detector Truth Test or Authenticator have ads?
Which is updated more often, Lie Detector Truth Test or Authenticator?
Other comparisons
