# TinyWatchCalc vs Construction Guru

The clearest difference is in-app purchases: TinyWatchCalc at none against Construction Guru's 1. TinyWatchCalc also leads on iOS requirement (12.0 vs 17.0). Construction Guru's advantage is update cadence (daily vs every 16 months). On price, ads and device support there is nothing between them.

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

TinyWatchCalc ships an update every 16 months, Construction Guru daily. The most recent releases landed on October 29, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | TinyWatchCalc | Construction Guru |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/construction-guru/id6761443502/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 16 months | **Daily** |
| Monetization | — | Paid |
| Size | 9 MB | 4 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Peter Entwistle](https://appshunter.io/developer/955246260) | [Jaime McGauley](https://appshunter.io/developer/1814207689) |

## What reviewers say

### TinyWatchCalc

[App page](https://appshunter.io/ios/app/tinywatchcalc/id1030102319)

**Features:** macOS Compatibility

**In-app purchases:** none


### Construction Guru

[App page](https://appshunter.io/ios/app/construction-guru/id6761443502)

This comprehensive construction calculator offers a suite of tools for measurements, framing, and trigonometry. It provides visual previews, code compliance checks, and offline functionality, all accessible through a one-time purchase.

**Highlights:** Feet-inch-fraction math, Framing and rafter calculations, Unit conversions, Trigonometry functions, Code compliance checks, Offline functionality, Visual layout previews

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Access Unlock | $19.99 | one-time |


## Frequently asked questions

### Is TinyWatchCalc free?

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

### Is Construction Guru free?

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

### Do TinyWatchCalc or Construction Guru have ads?

Neither TinyWatchCalc nor Construction Guru shows ads.

### Which is updated more often, TinyWatchCalc or Construction Guru?

TinyWatchCalc ships an update every 16 months, and Construction Guru daily. Most recently, TinyWatchCalc was updated on October 29, 2026 and Construction Guru on October 28, 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.*