# Construction Calculator+++ vs ThetaCalc

The clearest difference is price: ThetaCalc at Free against Construction Calculator+++'s $2.99. ThetaCalc also leads on update cadence (every 3 months vs every 19 months). Construction Calculator+++'s advantage is rating (5.0 vs 4.3) and iOS requirement (14.4 vs 17.6). On review sentiment, ratings volume, ads and in-app purchases there is nothing between them.

ThetaCalc is free to download; Construction Calculator+++ costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Construction Calculator+++ holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 3 and 4 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Construction Calculator+++ ships an update every 19 months, ThetaCalc every 3 months. The most recent releases landed on September 29, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Construction Calculator+++ | ThetaCalc |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/construction-calculator-plus-plus-plus/id879903072/reviews)** | [4.3 (4 ratings)](https://appshunter.io/ios/app/thetacalc/id1521614636/reviews) |
| Number of ratings | 3 | **4** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 19 months | **Every 3 months** |
| Monetization | Paid | **Free** |
| Size | 3 MB | 1 MB |
| Requires iOS | **14.4** | 17.6 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Dogahe](https://appshunter.io/developer/468657946) | [Felix Stehli](https://appshunter.io/developer/1521614638) |

## What reviewers say

### Construction Calculator+++

[App page](https://appshunter.io/ios/app/construction-calculator-plus-plus-plus/id879903072)

This app streamlines construction math with modules for length, width, and height calculations, material estimation for bricks and drywall, and complex rafter calculations. It also includes tools for circle and arc parameters, offering detailed visualizations.

**Highlights:** Length, width, height calculations, Material estimation (bricks, drywall), Rafter calculations (hip, valley, jack), Circle and arc parameter solver, Unit conversions (feet, inches, yards), Visualizations of geometric shapes

**In-app purchases:** none


### ThetaCalc

[App page](https://appshunter.io/ios/app/thetacalc/id1521614636)

This utility app provides a Reverse Polish Notation (RPN) calculator. Users can extend its functionality by programming custom functions and equations using JavaScript.

**Highlights:** Reverse Polish Notation (RPN) calculator, User-programmable functions, JavaScript equation support, Extensible functionality

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Construction Calculator+++ free?

Construction Calculator+++ costs $2.99, with no in-app purchases.

### Is ThetaCalc free?

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

### Which has better reviews, Construction Calculator+++ or ThetaCalc?

Construction Calculator+++ is rated higher. Construction Calculator+++ averages 5.0 out of 5 from 3 ratings, while ThetaCalc averages 4.3 from 4 ratings.

### Do Construction Calculator+++ or ThetaCalc have ads?

Neither Construction Calculator+++ nor ThetaCalc shows ads.

### Which is updated more often, Construction Calculator+++ or ThetaCalc?

Construction Calculator+++ ships an update every 19 months, and ThetaCalc every 3 months. Most recently, Construction Calculator+++ was updated on September 29, 2026 and ThetaCalc on October 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.*