Comparison

Lie Detector by the Expression vs StickerMaker Keyboard*

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

Head to head
About

Lie Detector by the Expression

This app analyzes facial expressions in real-time to detect potential deception. It tracks eye movements, lips, and face shape, comparing them against nine expressions commonly associated with lying, based on psychological studies. Record a subject's face while asking questions to receive an instant 'Lie' or 'True' result.

Highlights
  • Real-time facial tracking
  • Analyzes eye movement, lips, and face shape
  • Detects nine common deception expressions
  • Based on psychological studies
  • Instant lie or truth results
  • Record video for analysis
Features
Read full description

Discover this lie detector that tracks the face expressions to know when someone tells a lie. Based in real psychology studies. "Lie Detector by the Expression" is based in live real tracking of the face. This app is able to track the eyes movement, lips and face shape to compare with nine different expressions that unconsciously make people when they lie. Instructions: Record the face of the user you want to track face and press record button. Ask him a question while you are recording the face. Press Stop button when the answer finishes and you will get instantly the result: Lie or True. Of course the result depends on the ability of user to keep a neutral face while answering. The result is not totally reliable, but is is based in real psychology studies. The expressions that are studied to determine the result are: 1) Eyes darting: People´s eyes usually dart back and forth when they feel uncomfortable. 2) Rapid Blinking: When people are stressed about lying, they may blink five or six times in rapid succession. 3) Closing eyes for more than one second at a time: People often close their eyes for more than a second at a time when they are lying. 4) Looking up to the right: Right-handed people usually look up to their right when they are about what they saw. 5) Looking directly to the right: Right-handed people look directly to their right when lying about what they heard. 6) Looking down to the right: Right-handed people often look down to their right when they are lying aout smells or sensations. 7) False smile: A false smile do not affect the eyes and it´s just done with the mouth. 8) Pursed lips: People may purse their lips to counteract the dry mouth that comes when lying. 9) Head shaking: If people shake their heads while saying something, they have just denied their statement. Download now "Lie Detector by the Expression" and do not try lie!

About

StickerMaker Keyboard*

Create unique stickers by combining emojis and expressions. Easily export them to a custom keyboard for use in chats. Convert text into emoji strings to impress friends.

Highlights
  • Create custom emoji stickers
  • Combine different expressions
  • Drag, zoom, and rotate stickers
  • Export stickers to a custom keyboard
  • Convert text to emoji text
  • Random sticker generation
Features
Read full description

Create your own stickers and combine them as you like. - Explore countless emoji combinations and use them in your chats - Use your imagination to combine different expressions to make them more interesting - Drag, zoom, and rotate them with your finger to make your stickers unique - Easily export your stickers to our keyboard, when you are chatting with other people, open our keyboard and send your exclusive stickers, go spoof your friends - Open the keyboard, click on the sticker, successfully copy it to the clipboard, click in your chat input box and paste it in, then you can successfully send it to your chat partner - Impress your friends with the StickerMaker Keyboar and get pranked by you Emoji Text feature: - You can convert a simple text, such as "Hello", into emoji text. It is best to make the emojis quite different, so that you can get a string of text. You just need to click "Copy" and paste it in other social software to amaze your friends. Here's how to create stickers with StickerMaker Keyboard. 1. Select Create New Sticker 2. Select different emoji options and find the sticker component you want in the sticker list 3. Make the sticker look more funny by dragging your finger or zooming and rotating, or you can make subtle adjustments to it through the Adjust module 4. If you don't want to be so complicated, you can skip all the above steps and go directly to the random generation option to get a spoof sticker directly. Maybe you will get an unexpected surprise Here's how to use the StickerMaker Keyboard. 1. First you need to go to System Settings -> Keyboard -> Third Party Keyboard, add our StickerMaker Keyboard to your favorite keyboards 2. Open WhatsApp, TikTok, iMessage or other chat software 3. Switch the keyboard and select our StickerMaker Keyboard 4. Click on the already created sticker to copy it to the clipboard 5. Double-click or long-press the chat input box, paste your exclusive sticker on it and click send Go prank your friends! Learn more about StickerMaker Keyboard! - Privacy Policy: https://www.freeprivacypolicy.com/live/e8e14320-ca09-41cf-970e-35697d7d50e9 - Terms of Service: https://www.freeprivacypolicy.com/live/3d291d75-66f9-4419-833d-516258ccfadf - Contact me: mah40445@gmail.com, if you have any suggestions, you can give me feedback by email, please bring StickerMaker Keyboard in the subject of the email, I will carefully check your feedback and optimize our App, looking forward to your feedback mail

Screenshots

Lie Detector by the Expression3 screens
StickerMaker Keyboard*4 screens

Verdict

The call

The clearest difference is ads: Lie Detector by the Expression at none against StickerMaker Keyboard*'s shown. Lie Detector by the Expression also leads on review sentiment (91% vs 81%) and iOS requirement (11.0 vs 15.6). StickerMaker Keyboard*'s advantage is rating (4.6 vs 4.2) and ratings volume (2.1K vs 60). On price, in-app purchases, monetization model 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Lie Detector by the Expression sells 1 one-off in-app purchase and StickerMaker Keyboard* sells 3 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

StickerMaker Keyboard* holds the better App Store score, 4.6 against 4.2. That said, the two scores are not equally well evidenced: StickerMaker Keyboard* has 2.1K ratings behind it against 60, so its average is the more settled of the two. Written reviews complicate that: 91% of Lie Detector by the Expression's written reviews are positive against 81% of StickerMaker Keyboard*'s, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Lie Detector by the Expression ships an update every 3 months, StickerMaker Keyboard* monthly. The most recent releases landed on November 6, 2026 and November 7, 2026 respectively.

Scorecard6 real differences · 4 level
Lie Detector by the Expression versus StickerMaker Keyboard*: the parameters behind the verdict, then further details
ParameterLie Detector by the ExpressionStickerMaker Keyboard*
PriceFreeFree
Rating4.2 (60 ratings)4.6 (2.1K ratings) — better
Positive reviews91.3% of reviews — better81.1% of reviews
Number of ratings602.1K — better
Update frequencyEvery 3 monthsMonthly — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS11.0 — better15.6
Further details — not scored
Size40 MB75 MB
Age rating4+4+
DeveloperJorge Gregorio Martin Bello红燕 马

Customer experience

Lie Detector by the Expression

All ratings60 ratings
Positive80.0%
Neutral6.7%
Negative13.3%
Written reviews23 reviews
Positive91.3%
Neutral0.0%
Negative8.7%

StickerMaker Keyboard*

All ratings2,034 ratings
Positive89.1%
Neutral5.3%
Negative5.6%
Written reviews365 reviews
Positive81.1%
Neutral8.8%
Negative10.1%

Bugs and requests

Lie Detector by the Expression

Not enough reviews yet to summarise bugs or requests.

StickerMaker Keyboard*

Reported bugs

3 issues
  • Emojis not appearing in keyboard
  • App crashing or freezing
  • Inconsistent functionality

Requested features

4 requests
  • Ability to easily share created emojis
  • More customization options
  • Reduced ads or ad-free version
  • Improved stability and performance

In-app purchases

1 purchases

Lie Detector by the Expression

One-time1
  • Unlimited time$1.99
3 purchases

StickerMaker Keyboard*

Subscriptions3
  • StickerMaker$0.997 Days
  • STICKERMAKER KEYBOARD$1.497 Days
  • STICKERMAKER KEYBOARD3 Days trial$4.997 Days

Questions

Is Lie Detector by the Expression free?
Lie Detector by the Expression is free to download, with in-app purchases available.
Is StickerMaker Keyboard* free?
StickerMaker Keyboard* is free to download, with in-app purchases available.
Which has better reviews, Lie Detector by the Expression or StickerMaker Keyboard*?
StickerMaker Keyboard* is rated higher. Lie Detector by the Expression averages 4.2 out of 5 from 60 ratings, while StickerMaker Keyboard* averages 4.6 from 2.1K ratings.
Do Lie Detector by the Expression or StickerMaker Keyboard* have ads?
StickerMaker Keyboard* shows ads; Lie Detector by the Expression does not.
Which is updated more often, Lie Detector by the Expression or StickerMaker Keyboard*?
Lie Detector by the Expression ships an update every 3 months, and StickerMaker Keyboard* monthly. Most recently, Lie Detector by the Expression was updated on November 6, 2026 and StickerMaker Keyboard* on November 7, 2026.

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