Emotion Booth vs Monster Meter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Emotion Booth
Explore how attention and emotion recognition technology functions in real-time. This application processes emotions directly on your device, ensuring no personal data or video is ever sent or recorded.
- Live emotion recognition
- Attention tracking technology
- On-device processing
- No data or video recording
- Demonstrates AI technology
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Download this fun app created to demonstrate how attention and emotion recognition technology works within a live environment. Emotions are calculated by your phone, this app doesn't send or record any data or video.
Monster Meter
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FaceReader is a half-joking, half-serious photo app that measures your face with your iPhone's camera and on-device AI, then issues a One-Punch-Man-style monster wanted poster. [One snap, one verdict] 1. Vision analyzes the ratios of your eyes / nose / mouth / face contour 2. You get one of 5 disaster classes - Wolf / Tiger / Demon / Dragon / God 3. Apple Intelligence generates a villain codename and a 2-line bestiary entry on the spot 4. Auto-composed onto a retro VHS-style wanted poster (1080x1920) 5. One-tap share to Instagram, X, or any messenger [100% on-device] Camera frames and AI generation all run inside your phone. Zero server transmission, no account, no tracking. [3 languages] Korean / Japanese / English - UI, AI output, and poster all fully localized. [No Apple Intelligence? Still works.] A hand-written catalog of 100 monsters per language is bundled in, so the app stays fun even offline. Get the most embarrassingly low-stakes villain you can, and brag to your friends.
Screenshots
Verdict
The clearest difference is update cadence: Emotion Booth at every 6 weeks against Monster Meter's every 34 months. Emotion Booth also leads on device support and iOS requirement (12.0 vs 26.0). On price and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Emotion Booth ships an update every 6 weeks, Monster Meter every 34 months. The most recent releases landed on October 29, 2026 and October 27, 2026 respectively.
| Parameter | Emotion Booth | Monster Meter |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 6 weeks — better | Every 34 months |
| Ads | No | — |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | — |
| Requires iOS | 12.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 61 MB | 19 MB |
| Age rating | 4+ | 4+ |
| Developer | Realeyes Data Services Ltd. | doyoung kim |
In-app purchases
Emotion Booth
No in-app purchases
Monster Meter
No in-app purchases
Questions
Is Emotion Booth free?
Is Monster Meter free?
Which is updated more often, Emotion Booth or Monster Meter?
Other comparisons
