Ace Lie Detector Polygraph vs Lie Finder
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ace Lie Detector Polygraph
This entertainment app simulates a lie detector for fun. Use its visual technology to "detect" truths from friends and family. Upgrade to manipulate results for jokes.
- Simulated lie detection
- TruthWave™ visual technology
- Live data display
- Result manipulation for jokes
- Impress and intimidate friends
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This app is intended for entertainment purposes only and does not provide true polygraph functionality. Find the TRUE answer to any question you ask of friends, parents, girlfriends, boyfriends, teachers! Lie Detector Polygraph with TruthWave™ visual technology has never been so accessible and affordable! Ultra-cool polygraph TruthWave™ data is displayed live while you conduct your interrogation and it looks awesome! Impress and intimidate your friends with this super slick and useful app! Upgrade to manipulate the results and play jokes on your friends. Trust us it's funny!
Lie Finder
This entertainment app claims to detect lies by analyzing voice audio. It processes sound frequencies to differentiate between truthful and deceptive speech, offering a fun way to uncover the truth in everyday situations. Use it to test friends, family, or even pets for amusement.
- Voice audio analysis
- Pseudo-Dynamic Wave Interpretation
- Lie detection
- Fun for friends and family
- Real-time feedback
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If you wanted to know if someone was lying or telling the truth, you'd have to hook them up to a polygraph machine in a dimly lit room, or hire some expensive CIA investigator to go analyze them interrogation room style. But, ALL THAT HAS CHANGED! Introducing the LIE FINDER! Using complex Pseudo-Dynamic Wave Interpretation, the Lie Finder is 47.3825% accurate at detecting if you are lying or not just by listening to the sound of your own voice. It can eliminate between the frequencies of a truthful person and a liar, process the data stream, and feedback the results to you in a way that is easy to understand and FUN! Try it on your friends! Try it on your enemies! Try it on your pets! The days of being lied to are over! Did grandma drop her dentures in the soup and fish them out without telling anyone? Did your little brother fart and blame you for it? Are your friends secretly visiting pet shops and teaching all the parrots dirty words? Now you will know THE TRUTH! The LIE FINDER! Finding Lies One Lie at a Time! Disclaimer - This app uses the audio from the microphone of your device to process if you or your friends are telling the truth or lying. This app is limited to the audio input and processing capabilities of your device and, as it is not 100% accurate, should not be used in any instances where knowing truth from lie is mission critical. Please use this app to have fun with your friends!
Screenshots
Verdict
The clearest difference is rating: Ace Lie Detector Polygraph at 3.1 against Lie Finder's 2.6. Ace Lie Detector Polygraph also leads on ratings volume (18 vs 5) and iOS requirement (8.0 vs 16.6). Lie Finder's advantage is in-app purchases (none vs 1). On price, review sentiment, update cadence and ads 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. Ace Lie Detector Polygraph sells 1 one-off in-app purchase. Lie Finder asks for nothing beyond the download.
Ace Lie Detector Polygraph holds the better App Store score, 3.1 against 2.6. Both are backed by a comparable volume of ratings — 18 and 5 respectively. Written reviews complicate that: 37% of Ace Lie Detector Polygraph's written reviews are positive against 43% of Lie Finder's, so the app with the better star average is not the one people write more warmly about.
Ace Lie Detector Polygraph ships an update every 4 weeks, Lie Finder every 2 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.
| Parameter | Ace Lie Detector Polygraph | Lie Finder |
|---|---|---|
| Price | Free | Free |
| Rating | 3.1 (18 ratings) — better | 2.6 (5 ratings) |
| Positive reviews | 36.9% of reviews | 42.9% of reviews — better |
| Number of ratings | 18 — better | 5 |
| Update frequency | Every 4 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 8.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 15 MB | 119 MB |
| Age rating | 4+ | 4+ |
| Developer | Tiny Mobile Inc. | AndEtc, Inc. |
Customer experience
Ace Lie Detector Polygraph
Lie Finder
Bugs and requests
Ace Lie Detector Polygraph
Reported bugs
2 issues- App loads upside down on some devices
- Upgrade doesn't work as expected
Requested features
2 requests- Ability to record audio for more accurate detection
- Option to customize the detection logic
Lie Finder
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Ace Lie Detector Polygraph
- Lie Detector Upgrade - Lie Detection special$0.99
Lie Finder
No in-app purchases
Questions
Is Ace Lie Detector Polygraph free?
Is Lie Finder free?
Which has better reviews, Ace Lie Detector Polygraph or Lie Finder?
Do Ace Lie Detector Polygraph or Lie Finder have ads?
Which is updated more often, Ace Lie Detector Polygraph or Lie Finder?
Other comparisons
