カップルゲーム SYNC vs Lie Detector Test
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
カップルゲーム SYNC
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A couple quiz game for two players on one iPhone. Turn your phone sideways and sit facing each other. Both players choose A or B for the same question, then reveal answers together. ● 7 genres: Normal, Drama, Funny, Values, Adult, Secrets, What-if ● About 350 questions to spark conversation ● Recap every 5 questions to compare your answers ● Play history saved on device Free play includes 15 questions per genre. Continue with rewarded ads or a one-time Premium unlock (all questions, no ads). No account required. Data is stored on your device.
Lie Detector Test
This app simulates a lie detector test for entertainment purposes. Place a finger on the scanner, ask questions, and get a 'Truth' or 'Lie' verdict. It's designed for parties and pranks, with customizable results.
- Fingerprint scanner simulator
- Animated polygraph waveform
- Customizable verdict control
- Realistic sound effects and haptics
- Party game for friends
- Instant prank setup
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Is your friend telling the TRUTH… or a total LIE? Place a finger on the scanner, ask any question, and let the Lie Detector Test deliver the verdict — the ultimate party prank! Your phone becomes a hilarious polygraph simulator: an animated fingerprint scanner, a racing waveform, radar rings, a heartbeat countdown, dramatic scanning sounds and haptics… and then the glowing verdict drops: TRUTH or LIE. Their face in that moment? Priceless. YOU SECRETLY CONTROL THE VERDICT • Customize Mode: pre-set the next results in any order before you hand the phone over • Random Mode: a genuine 50/50 for real suspense • They'll never know it was rigged — that's the prank THE ULTIMATE PARTY GAME • Loyalty tests for couples and best friends • Sleepovers, game nights, road trips, April Fools and family gatherings • Truth-or-dare nights: ask the juicy questions — "Do you have a crush?" "Who ate my snack?" • Film the reveal — the reactions are made for TikTok, Reels and Shorts FEELS SCARY REAL • Realistic fingerprint scanner with a suspenseful press-and-hold • Animated polygraph waveform, radar rings and countdown • Immersive sound effects and haptic vibrations • A dramatic, glowing TRUTH or LIE reveal WHY YOU'LL LOVE IT • Prank in seconds — no setup, no sign-up • Slick sci-fi neon design • Endless laughs, every single time DISCLAIMER Lie Detector Test is a prank and entertainment app for fun only. It does NOT detect real lies or truth and does not read fingerprints or any biometric data — every result is random or pre-set by you, purely for entertainment. Always let your friends in on the joke! Privacy Policy: https://thirtythreeapps.com/ios-lie-detector-test-privacy-policy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Download Lie Detector Test now — scan a finger, reveal the verdict, and find out who's REALLY lying!
Screenshots
Verdict
The clearest difference is update cadence: Lie Detector Test at every 3 weeks against カップルゲーム SYNC's every 3 months. On price, ads, in-app purchases and device support 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. カップルゲーム SYNC sells 1 one-off in-app purchase and Lie Detector Test sells 2 in-app purchases, starting at $9.99 per 7 days. Whichever you choose, the download price is not the number that matters.
カップルゲーム SYNC ships an update every 3 months, Lie Detector Test every 3 weeks. The most recent releases landed on September 18, 2026 and September 1, 2026 respectively.
| Parameter | カップルゲーム SYNC | Lie Detector Test |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 months | Every 3 weeks — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 16.6 | 16.0 — better |
| Further details — not scored | ||
| Size | 9 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Yuya Takamoto | Thirty Three Apps |
In-app purchases
カップルゲーム SYNC
- 全ジャンル解放(買い切り)$1.99
Lie Detector Test
- Weekly Subscription7 Days trial$9.997 Days
- Monthly Subscription$29.991 Month





