# Construction Density vs Evap Solutions

The clearest difference is price: Evap Solutions at Free against Construction Density's $3.99. Evap Solutions also leads on update cadence (every 3 weeks vs every 6 months). Construction Density's advantage is in-app purchases (none vs 2) and device support (3 vs 1). On rating and ads there is nothing between them.

Evap Solutions is free to download; Construction Density costs $3.99 up front. Evap Solutions sells 2 in-app purchases, starting at $9.99 per month. Construction Density asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.9 for Construction Density against 5.0 for Evap Solutions. Both are backed by a comparable volume of ratings — 7 and 2 respectively.

Construction Density ships an update every 6 months, Evap Solutions every 3 weeks. The most recent releases landed on September 24, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Construction Density | Evap Solutions |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | [4.9 (7 ratings)](https://appshunter.io/ios/app/construction-density/id1434219586/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/evap-solutions/id6754700234/reviews)** |
| Number of ratings | **7** | 2 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 weeks** |
| Monetization | **Paid** | Subscription |
| Size | 1 MB | 25 MB |
| Requires iOS | **14.3** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Jacob Armour](https://appshunter.io/developer/1434219585) | [1L Concrete Solutions](https://appshunter.io/developer/1849693371) |

## What reviewers say

### Construction Density

[App page](https://appshunter.io/ios/app/construction-density/id1434219586)

Calculate soil sample density and moisture content using T-99 and Cone test methods. This tool serves as a verification aid for chart interpolation in construction and geotechnical applications.

**Highlights:** T-99 density calculation, Cone density calculation, Optimum moisture calculation, Soil sample analysis, Verification tool

**In-app purchases:** none


### Evap Solutions

[App page](https://appshunter.io/ios/app/evap-solutions/id6754700234)

This app helps concrete professionals calculate evaporation rates based on weather conditions. It provides guidance to prevent cracks and improve concrete curing for stronger, longer-lasting results. A free trial is available before subscribing.

**Highlights:** Concrete evaporation rate calculation, Crack prevention guidance, Weather-based adjustments, User-friendly interface, Moisture control and curing management

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $9.99 | per month |
| Annual Subscription | $39.99 | per year |


## Frequently asked questions

### Is Construction Density free?

Construction Density costs $3.99, with no in-app purchases.

### Is Evap Solutions free?

Evap Solutions is free to download, with in-app purchases available.

### Which has better reviews, Construction Density or Evap Solutions?

Evap Solutions is rated higher. Construction Density averages 4.9 out of 5 from 7 ratings, while Evap Solutions averages 5.0 from 2 ratings.

### Do Construction Density or Evap Solutions have ads?

Neither Construction Density nor Evap Solutions shows ads.

### Which is updated more often, Construction Density or Evap Solutions?

Construction Density ships an update every 6 months, and Evap Solutions every 3 weeks. Most recently, Construction Density was updated on September 24, 2026 and Evap Solutions on October 2, 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.*