# TransTech Connect vs Construction Calc

The clearest difference is in-app purchases: TransTech Connect at none against Construction Calc's 1. On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. Construction Calc sells 1 one-off in-app purchase. TransTech Connect asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for TransTech Connect against 5.0 for Construction Calc. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

TransTech Connect ships an update every 2 months, Construction Calc every 3 months. Both last shipped on October 30, 2026.

## The numbers

| Metric | TransTech Connect | Construction Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/transtech-connect/id6741084942/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/construction-calc-estimator/id6755724882/reviews) |
| Number of ratings | **2** | 1 |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free | Free |
| Size | 52 MB | 3 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Transtech Systems, Inc.](https://appshunter.io/developer/1792976310) | [Konstantin Khoroshun](https://appshunter.io/developer/1476700024) |

## What reviewers say

### TransTech Connect

[App page](https://appshunter.io/ios/app/transtech-connect/id6741084942)

Streamline asphalt quality control by wirelessly syncing gauge measurements. Capture data instantly via Bluetooth or QR codes, with offline caching and real-time cloud access. Tag readings with GPS and collaborate with your team for efficient project documentation.

**Highlights:** Bluetooth sync with PQI 380+ gauges, QR code scanning for data capture, Offline mode with automatic upload, GPS-tagged measurements, Real-time cloud sync, Team collaboration workspaces, OnStation export integration

**Features:** macOS Compatibility

**In-app purchases:** none


### Construction Calc

[App page](https://appshunter.io/ios/app/construction-calc-estimator/id6755724882)

This offline calculator helps construction professionals and DIYers quickly estimate materials for various projects. It supports imperial and metric units, and all calculations are stored locally for privacy.  No internet connection is required.

**Highlights:** Offline material estimation, Calculates 8 key materials, Feet-Inch-Fraction input, Imperial & Metric units, Local data storage, No subscriptions or ads

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Features | $0.99 | one-time |


## Frequently asked questions

### Is TransTech Connect free?

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

### Is Construction Calc free?

Construction Calc is free to download, with in-app purchases available.

### Which has better reviews, TransTech Connect or Construction Calc?

TransTech Connect and Construction Calc are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do TransTech Connect or Construction Calc have ads?

Neither TransTech Connect nor Construction Calc shows ads.

### Which is updated more often, TransTech Connect or Construction Calc?

TransTech Connect ships an update every 2 months, and Construction Calc every 3 months. Most recently, TransTech Connect was updated on October 30, 2026 and Construction Calc on October 30, 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.*