Comparison

Smart Hand vs Polygraph AI

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Smart Hand

Transform your hand movements into interactive visual magic with real-time hand tracking. Control glowing particles, trigger visual reactions with gestures, and create animated scenes. Experience futuristic hand interactions and satisfying motion-based effects.

Highlights
  • Real-time hand and finger tracking
  • Interactive 3D particle effects
  • Gesture and hand sign recognition
  • Dynamic particle morphing
  • Creative card creator
  • Smooth camera interaction
Features
Read full description

Smart Hand: Sign Master Transform your hand movements into interactive visual magic with Smart Hand: Sign Master — a real-time hand tracking experience filled with glowing particles, gesture effects, and immersive 3D animations. Using advanced hand and finger tracking technology, Smart Hand lets you control stunning particle effects directly from your camera. Move your fingers, create dynamic shapes, trigger visual reactions, and explore a new way to interact with digital motion. Whether you want creative visual effects, futuristic hand interactions, or satisfying motion-based experiences, Smart Hand delivers smooth and responsive real-time interaction designed for iPhone and iPad. FEATURES Real-Time Hand Tracking Track your hands and fingers instantly with smooth gesture recognition technology. Interactive 3D Particle Effects Control glowing particles and visual animations using natural hand movements. Gesture & Hand Sign Recognition Perform different hand signs to activate unique visual reactions and interactive effects. Dynamic Particle Morphing Watch particles transform and react in real time as your hand moves. Creative Card Creator Design animated greeting cards and interactive visual scenes with motion-controlled effects. Smooth Camera Interaction Optimized for responsive real-time performance and immersive visual feedback. WHY USERS LOVE SMART HAND • Easy to use — just open the camera and start creating • Smooth real-time hand tracking • Beautiful glowing particle visuals • Fun gesture-based interactions • Interactive and satisfying visual effects • Perfect for creative videos and social sharing • Futuristic hand-controlled experience PERFECT FOR • Hand tracking fans • Gesture control experiences • Interactive visual art • Creative motion effects • Realtime particle simulations • Social media content creation • Fun camera experiments Experience the future of gesture interaction with Smart Hand: Sign Master. Subscription Details: • Weekly Plan - $4.99/week • Yearly Plan - $29.99/year • Payment will be charged to your Apple ID account at the confirmation of purchase. • Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. • Your account will be charged for renewal within 24 hours prior to the end of the current period. • You can manage or cancel your subscriptions in your Apple ID account settings at any time after purchase. By using this app, you agree to Apple’s Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://sites.google.com/view/ardeo-studio/privacy-policy

About

Polygraph AI

Features
Read full description

Polygraph AI: Lie Analysis is your personal stress and truth detector. Ever wondered if someone is feeling tense during a conversation? Our advanced AI analyzes voice frequencies to detect micro-tremors and stress levels, providing you with a fun and engaging "truth verdict."

Screenshots

Smart Hand4 screens
Polygraph AI4 screens

Verdict

The call

The clearest difference is in-app purchases: Polygraph AI at none against Smart Hand's 2. Polygraph AI also leads on update cadence (every 2 days vs weekly). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Smart Hand sells 2 in-app purchases, starting at $3.99 per 7 days. Polygraph AI asks for nothing beyond the download.

UpkeepUpdate frequency

Smart Hand ships an update weekly, Polygraph AI every 2 days. Both last shipped on October 25, 2026.

Scorecard2 real differences · 7 level
Smart Hand versus Polygraph AI: the parameters behind the verdict, then further details
ParameterSmart HandPolygraph AI
PriceFreeFree
Rating4.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyWeeklyEvery 2 days — better
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.0 — better
Further details — not scored
Size186 MB31 MB
Age rating4+4+
DeveloperMinh Tri NguyenAndres Saiz Ruiperez

In-app purchases

2 purchases

Smart Hand

Subscriptions2
  • Weekly Premium$3.997 Days
  • Yearly Premium$19.991 Year
None

Polygraph AI

No in-app purchases

Questions

Is Smart Hand free?
Smart Hand is free to download, with in-app purchases available.
Is Polygraph AI free?
Polygraph AI is free to download, with no in-app purchases.
Do Smart Hand or Polygraph AI have ads?
Both Smart Hand and Polygraph AI show ads.
Which is updated more often, Smart Hand or Polygraph AI?
Smart Hand ships an update weekly, and Polygraph AI every 2 days. Most recently, Smart Hand was updated on October 25, 2026 and Polygraph AI on October 25, 2026.

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