# Drill Calc vs Shortwave Guide

The clearest difference is review sentiment: Drill Calc at 92% against Shortwave Guide's 20%. Drill Calc also leads on price ($2.99 vs $8.99) and iOS requirement (12.0 vs 15.6). Shortwave Guide's advantage is update cadence (every 2 months vs every 18 months). On ads, in-app purchases, monetization model and device support there is nothing between them.

Drill Calc costs $2.99 and Shortwave Guide $8.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Drill Calc ships an update every 18 months, Shortwave Guide every 2 months. The most recent releases landed on October 4, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Drill Calc | Shortwave Guide |
| --- | --- | --- |
| Price | **$2.99** | $8.99 |
| Rating | **[4.1 (19 ratings)](https://appshunter.io/ios/app/drill-calc/id304434324/reviews)** | — |
| Number of ratings | **19** | — |
| Positive reviews | **91.7% of reviews** | 20.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 2 months** |
| Monetization | Paid | Paid |
| Size | 5 MB | 26 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Black Cat Systems](https://appshunter.io/developer/301047032) | [Vladyslav Haliuk](https://appshunter.io/developer/1563954274) |

## What reviewers say

### Drill Calc

[App page](https://appshunter.io/ios/app/drill-calc/id304434324)

This utility app helps you determine the correct drill bit size for threaded holes. It supports both inch and metric threads, calculates close and tight fit hole sizes, and provides tables for standard drill bit sizes and pipe information.

**Highlights:** Calculates drill bit size for threaded holes, Supports inch and metric threads, Displays close and tight fit hole sizes, Includes standard inch fractional and numeric drill bit tables, Provides pipe size information, Offers data on common wood screw sizes

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Shortwave Guide

[App page](https://appshunter.io/ios/app/shortwave-guide/id1629061921)

This application displays a real-time schedule of shortwave radio broadcasts worldwide, sourced from the EiBi database. Users can rescan for updates, view specific frequencies, and update the entire broadcast schedule database.

**Highlights:** Worldwide shortwave broadcast schedule, Real-time station listings, Frequency viewing, Database updates, EiBi database integration

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Drill Calc free?

Drill Calc costs $2.99, with no in-app purchases.

### Is Shortwave Guide free?

Shortwave Guide costs $8.99, with no in-app purchases.

### Do Drill Calc or Shortwave Guide have ads?

Neither Drill Calc nor Shortwave Guide shows ads.

### Which is updated more often, Drill Calc or Shortwave Guide?

Drill Calc ships an update every 18 months, and Shortwave Guide every 2 months. Most recently, Drill Calc was updated on October 4, 2026 and Shortwave Guide on September 24, 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.*