# Dri vs SMRT Cool

The clearest difference is rating: SMRT Cool at 5.0 against Dri's 3.6. SMRT Cool also leads on review sentiment (100% vs 63%) and update cadence (every 3 months vs every 13 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.

SMRT Cool holds the better App Store score, 5.0 against 3.6. Both are backed by a comparable volume of ratings — 12 and 5 respectively. Written reviews point the same way: 63% of Dri's written reviews are positive against 100% of SMRT Cool's.

Dri ships an update every 13 months, SMRT Cool every 3 months. The most recent releases landed on October 9, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Dri | SMRT Cool |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.6 (12 ratings)](https://appshunter.io/ios/app/dri-eaz-psychrometric-calc/id484266596/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/smrt-cool/id1544082970/reviews)** |
| Number of ratings | **12** | 5 |
| Positive reviews | 62.5% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 4 MB | 30 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Legend Brands](https://appshunter.io/developer/484266599) | [Combined Refrigeration Resources Inc](https://appshunter.io/developer/1544082972) |

## What reviewers say

### Dri

[App page](https://appshunter.io/ios/app/dri-eaz-psychrometric-calc/id484266596)

This utility app calculates essential drying environment variables. Input temperature and relative humidity to instantly get grains per pound (GPP). Advanced options allow calculation of vapor pressure and air dew point to material, with easy term definitions.

**Highlights:** Calculate grains per pound (GPP), Calculate vapor pressure, Calculate air dew point to material, Switch between F° and C°, Easy-access term definitions

**Features:** macOS Compatibility

**In-app purchases:** none


### SMRT Cool

[App page](https://appshunter.io/ios/app/smrt-cool/id1544082970)

This app provides access to a comprehensive range of industrial cooling products, including chillers, air handlers, and filtration systems. Users can explore various cooling solutions for commercial and industrial applications.

**Highlights:** Chillers (1-1500 tons), Air handlers, Pump tank stations, Cooling towers, Condensing units, Filtration packages

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Dri free?

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

### Is SMRT Cool free?

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

### Which has better reviews, Dri or SMRT Cool?

SMRT Cool is rated higher. Dri averages 3.6 out of 5 from 12 ratings, while SMRT Cool averages 5.0 from 5 ratings.

### Do Dri or SMRT Cool have ads?

Neither Dri nor SMRT Cool shows ads.

### Which is updated more often, Dri or SMRT Cool?

Dri ships an update every 13 months, and SMRT Cool every 3 months. Most recently, Dri was updated on October 9, 2026 and SMRT Cool on October 24, 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.*