# HaqqConstructionCalculator vs Dark Digits

The clearest difference is device support: HaqqConstructionCalculator at 3 against Dark Digits's 1. HaqqConstructionCalculator also leads on iOS requirement (13.0 vs 17.6). On price, update cadence, 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.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 4, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | HaqqConstructionCalculator | Dark Digits |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/haqqconstructioncalculator/id6741587206/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | — |
| Size | 21 MB | 4 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Haqq Technology](https://appshunter.io/developer/1794772805) | [YMMV](https://appshunter.io/developer/1224453829) |

## What reviewers say

### HaqqConstructionCalculator

[App page](https://appshunter.io/ios/app/haqqconstructioncalculator/id6741587206)

This utility app simplifies imperial unit calculations for construction, design, and DIY projects. It offers instant conversions for feet, inches, square feet, and cubic yards, supporting mixed fractions and offline use.

**Highlights:** Imperial unit conversions, Feet, inches, square feet, cubic yards, Mixed fraction support, Offline functionality, Ad-free interface

**Features:** macOS Compatibility

**In-app purchases:** none


### Dark Digits

[App page](https://appshunter.io/ios/app/dark-digits/id6744330793)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HaqqConstructionCalculator free?

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

### Is Dark Digits free?

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

### Do HaqqConstructionCalculator or Dark Digits have ads?

Neither HaqqConstructionCalculator nor Dark Digits shows ads.

### Which is updated more often, HaqqConstructionCalculator or Dark Digits?

HaqqConstructionCalculator ships an update every 2 months, and Dark Digits every 2 months. Most recently, HaqqConstructionCalculator was updated on November 4, 2026 and Dark Digits on November 8, 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.*