# Phoenix Psychrometric Calculator vs HELIXproject

The clearest difference is rating: Phoenix Psychrometric Calculator at 5.0 against HELIXproject's 3.1. Phoenix Psychrometric Calculator also leads on review sentiment (80% vs 43%) and iOS requirement (5.1.1 vs 26.0). HELIXproject's advantage is update cadence (every 2 weeks vs every 12 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Phoenix Psychrometric Calculator holds the better App Store score, 5.0 against 3.1. Both are backed by a comparable volume of ratings — 4 and 7 respectively. Written reviews point the same way: 80% of Phoenix Psychrometric Calculator's written reviews are positive against 43% of HELIXproject's.

Phoenix Psychrometric Calculator ships an update every 12 months, HELIXproject every 2 weeks. Both last shipped on November 1, 2026.

## The numbers

| Metric | Phoenix Psychrometric Calculator | HELIXproject |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/phoenix-psychrometric-calculator/id380722232/reviews)** | [3.1 (7 ratings)](https://appshunter.io/ios/app/helixproject/id690149934/reviews) |
| Number of ratings | 4 | **7** |
| Positive reviews | **80.0% of reviews** | 42.9% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 1 MB | 33 MB |
| Requires iOS | **5.1.1** | 26.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Therma-Stor, LLC](https://appshunter.io/developer/380722235) | [Holder Construction Group, LLC](https://appshunter.io/developer/690149937) |

## What reviewers say

### Phoenix Psychrometric Calculator

[App page](https://appshunter.io/ios/app/phoenix-psychrometric-calculator/id380722232)

Easily calculate psychrometric values like dew point and grains per pound by inputting temperature and humidity. It also helps determine dehumidifier performance by calculating water removal based on CFM and conditions.

**Highlights:** Dew point calculation, Grains per pound calculation, Dehumidifier performance calculation, Input temperature and relative humidity, Calculate water removal, User-friendly wheel interface

**Features:** macOS Compatibility

**In-app purchases:** none


### HELIXproject

[App page](https://appshunter.io/ios/app/helixproject/id690149934)

This app streamlines construction project communication and management by coordinating real-time information between field teams and off-site stakeholders. It offers tools for tracking assets, changes, issues, and documentation, ensuring efficient project execution.

**Highlights:** Real-time information coordination, Asset and change tracking, Customizable checklists, Team directory with permissions, Location-based issue tracking, Photo and video documentation, Collaborative task management

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Phoenix Psychrometric Calculator free?

Phoenix Psychrometric Calculator is free to download, with no in-app purchases.

### Is HELIXproject free?

HELIXproject is free to download, with no in-app purchases.

### Which has better reviews, Phoenix Psychrometric Calculator or HELIXproject?

Phoenix Psychrometric Calculator is rated higher. Phoenix Psychrometric Calculator averages 5.0 out of 5 from 4 ratings, while HELIXproject averages 3.1 from 7 ratings.

### Do Phoenix Psychrometric Calculator or HELIXproject have ads?

Neither Phoenix Psychrometric Calculator nor HELIXproject shows ads.

### Which is updated more often, Phoenix Psychrometric Calculator or HELIXproject?

Phoenix Psychrometric Calculator ships an update every 12 months, and HELIXproject every 2 weeks. Most recently, Phoenix Psychrometric Calculator was updated on November 1, 2026 and HELIXproject on November 1, 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.*