# TrenchCalc — Trench Works Platform

> Trench Works Platform (iPhone/iPad app by VINCENT WEI HON ZHENG.)

- Source: https://appshunter.io/ios/app/trenchcalc/id6751827956 (this page in markdown: same URL + `.md`)
- Developer: [VINCENT WEI HON ZHENG](https://appshunter.io/developer/1837052899)
- Category: Productivity, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 164 MB
- Languages: American English
- Released: 2026-08-22
- Data updated: 2026-08-28
- User reviews in markdown: https://appshunter.io/ios/app/trenchcalc/id6751827956/reviews.md

## What is TrenchCalc?

Description

TrenchCalc is the ultimate trench work platform designed for construction professionals, engineers, and contractors. Easily calculate trench volumes, scan stockpiles, estimate costs, create documents—all from your mobile device. TrenchCalc helps you plan smarter and work faster on-site.

Features

Trench Volume Calculator – Estimate backfill requirements instantly.

Culvert Layout & Spacing – Verify culvert fit and positioning for drainage and utility installations.

Safety Checks – Receive prompts when trench depths exceed safety thresholds.

Site Diary Automation – Generate daily logs and structured reports for record-keeping using voice and AI.

LiDAR Volume Scanner – Measure stockpile and trench volumes using your device's LiDAR sensor.

Why Choose TrenchCalc?

Tailored for civil engineers, site managers, and contractors.

Streamlines planning and reduces on-site guesswork.

Saves time by combining multiple utilities into one easy-to-use app.

Subscription Plans

Basic Plan – Unlocks essential trench calculation tools.

Pro Plan – Access the full trench work suite with advanced features including site diaries, compliance checks, and more.

Subscriptions are available on iOS through secure in-app purchases

Perfect for civil engineers, contractors, builders, utility installers, site supervisors, students and trainees in construction or civil engineering

Download TrenchCalc today and make trench planning faster, safer, and more accurate.

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Basic Plan | $2.99 | per month |
| Pro Plan | $4.99 | per month |
| Basic Plan | $29.99 | per year |
| Pro Plan | $49.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| TrenchCalc Pro | $5.99 | one-time |



## Version history (last 5 releases)

### 3.4 — 2026-08-24

This update fixes several issues that could prevent a completed purchase from unlocking premium features — including a case where a purchase would work initially but silently revert to "Free" after restarting the app. Purchases and restores are now verified directly against the App Store rather than assumed to have succeeded, and are reliably remembered across app launches. We've also added automatic purchase recovery after reinstalling the app or switching phones, and refreshed the upgrade screen for easier reading.

### 3.3 — 2026-08-23

This update fixes reliability issues with in-app purchases, including a startup timing issue that could prevent a completed purchase from unlocking premium features or being found by "Restore Purchase." Purchases and restores now work correctly regardless of network conditions when the app launches. We've also added automatic purchase recovery after reinstalling the app or switching phones, and refreshed the upgrade screen for easier reading.

### 3.2 — 2026-08-22

Fixed an issue where completing a purchase didn't always unlock premium features right away. Purchases are now also automatically recognized if you reinstall the app or switch to a new phone — no need to hunt for a "Restore Purchase" button. The upgrade screen has also been refreshed for easier reading.

### 3.1 — 2026-08-09

• No login required — jump straight into calculations
• Simplified to a single one-time purchase — no subscriptions, ever

### 3 — 2026-08-01

This update fixes a bug where tapping "Save to Camera Roll" would fail with a storage permission error even when photo access was allowed — photos now save reliably. We've also streamlined the app by removing a few underused features (Site Diary, Scan Manager, in-app Feedback) to keep the experience focused on core site survey and measurement tools, and tightened up backend security around account and subscription data. Thanks for using TrenchCalc — as always, let us know if you run into any issues!

## More apps by VINCENT WEI HON ZHENG

- [FastOCR](https://appshunter.io/ios/app/fastocr/id6768306245)
- [SiteArea](https://appshunter.io/ios/app/sitearea/id6768809743)
- [Trench Scanner](https://appshunter.io/ios/app/trench-scanner/id6769755998)
- [SlopeCheck](https://appshunter.io/ios/app/slopecheck/id6797162721)

All apps by VINCENT WEI HON ZHENG: https://appshunter.io/developer/1837052899

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-28.*