# FaceYourFace vs Psychrometry Chart

The clearest difference is review sentiment: FaceYourFace at 33% against Psychrometry Chart's 0%. FaceYourFace also leads on price ($0.99 vs $1.99) and iOS requirement (9.0 vs 15.6). Psychrometry Chart's advantage is update cadence (every 2 weeks vs every 23 months). On ads, in-app purchases, monetization model and device support there is nothing between them.

FaceYourFace costs $0.99 and Psychrometry Chart $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

FaceYourFace ships an update every 23 months, Psychrometry Chart every 2 weeks. The most recent releases landed on October 13, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | FaceYourFace | Psychrometry Chart |
| --- | --- | --- |
| Price | **$0.99** | $1.99 |
| Rating | **[2.0 (1 ratings)](https://appshunter.io/ios/app/faceyourface/id1137963659/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | **33.3% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 23 months | **Every 2 weeks** |
| Monetization | Paid | Paid |
| Size | 19 MB | 3 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Wolfgang Huss](https://appshunter.io/developer/1137963658) | [Konstantinos Ladiellis](https://appshunter.io/developer/1516103440) |

## What reviewers say

### FaceYourFace

[App page](https://appshunter.io/ios/app/faceyourface/id1137963659)

Explore facial symmetry and its connection to personality by mirroring face halves. Discover differences between your left and right sides and ponder their implications for your public and private self. A fun and insightful tool for self-reflection.

**Highlights:** Mirror face halves independently or together, Create double-left and double-right faces, Analyze public vs. private emotional sides, Save and export result images, Access informational websites, Manage lists of people and faces

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Psychrometry Chart

[App page](https://appshunter.io/ios/app/psychrometry-chart/id1516103441)

This app calculates and displays thermodynamic properties of moist air mixtures. It supports both SI and imperial units, allowing users to find values like dry-bulb temperature, relative humidity, and enthalpy by interacting with a chart. It also computes thermal comfort parameters.

**Highlights:** Moist air property calculation, SI and imperial unit support, Interactive chart with reticle, Displays dry-bulb temp, humidity, enthalpy, Calculates PMV/PPD thermal comfort

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is FaceYourFace free?

FaceYourFace costs $0.99, with no in-app purchases.

### Is Psychrometry Chart free?

Psychrometry Chart costs $1.99, with no in-app purchases.

### Do FaceYourFace or Psychrometry Chart have ads?

Neither FaceYourFace nor Psychrometry Chart shows ads.

### Which is updated more often, FaceYourFace or Psychrometry Chart?

FaceYourFace ships an update every 23 months, and Psychrometry Chart every 2 weeks. Most recently, FaceYourFace was updated on October 13, 2026 and Psychrometry Chart on October 20, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*