# HamAntCal vs HamAlert

The clearest difference is price: HamAlert at Free against HamAntCal's $0.99. HamAlert also leads on in-app purchases (none vs 1) and update cadence (every 5 months vs every 31 months). HamAntCal's advantage is rating (4.6 vs 4.0) and review sentiment (90% vs 67%). On ratings volume, ads and device support there is nothing between them.

HamAlert is free to download; HamAntCal costs $0.99 up front. HamAntCal sells 1 one-off in-app purchase. HamAlert asks for nothing beyond the download.

HamAntCal holds the better App Store score, 4.6 against 4.0. Both are backed by a comparable volume of ratings — 57 and 34 respectively. Written reviews point the same way: 90% of HamAntCal's written reviews are positive against 67% of HamAlert's.

HamAntCal ships an update every 31 months, HamAlert every 5 months. The most recent releases landed on October 11, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | HamAntCal | HamAlert |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[4.6 (57 ratings)](https://appshunter.io/ios/app/hamantcal/id539373704/reviews)** | [4.0 (34 ratings)](https://appshunter.io/ios/app/hamalert/id1200759798/reviews) |
| Number of ratings | **57** | 34 |
| Positive reviews | **90.0% of reviews** | 66.7% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 31 months | **Every 5 months** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 2 MB | 11 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [State Road 41 Apps LLC](https://appshunter.io/developer/986230800) | [Manuel Kasper](https://appshunter.io/developer/1200759797) |

## What reviewers say

### HamAntCal

[App page](https://appshunter.io/ios/app/hamantcal/id539373704)

This app helps amateur radio operators calculate the starting lengths for various antenna types. It supports both imperial and metric units and offers adjustable calculations for inverted vee antennas based on wire angle. Results require final trimming for precise tuning.

**Highlights:** Calculate antenna starting lengths, Supports feet/inches and metric units, Calculates for Dipoles, Inverted Vee, and Verticals, Adjustable Inverted Vee angle calculation, Frequency range 30 KHz to 500 MHz (Inverted Vee up to 60 MHz), Updated interface and settings

**Features:** Vision Pro support

**In-app purchases (1)**

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

**What reviewers like**

- 👍 Easy to use
- 🚀 Quick calculations
- 💡 Visually clear concepts
- 👍 Great tool for ham radio
- 👍 Useful for field use

**What reviewers complain about**

- 🤔 Lacks visual aids/pictures
- 🤔 Limited to basic calculations
- 🐛 Not working with iOS 11 (historical)
- 🐛 Needs UHF & above support
- 🐛 Incorrect calculation for inverted V

**Reported bugs**

- No longer works with IOS 11 (historical)
- App is wrong on inverted V
- Inverted V issue: leg length calculation seems incorrect
- Calculation for inverted V seems incorrect

**Requested features**

- Add support for UHF frequencies and higher
- Add velocity factor and radiating element size as variables
- Add suggestion: input target and measured frequency to show trim/add amount
- Add Inverted Vee mode to calculate height to top and end-to-end distance
- Add trap calculations for common bands


### HamAlert

[App page](https://appshunter.io/ios/app/hamalert/id1200759798)

Receive instant push notifications for desired amateur radio contacts. Filter alerts by various criteria like callsign, band, mode, and location. Stay updated on DX spots from multiple sources.

**Highlights:** Push notifications for desired stations, Filter spots by DXCC, callsign, and location, Support for Reverse Beacon Network, SOTAwatch, DX cluster, PSK Reporter, Filter by band, mode, and time, Filter by spotter callsign and DXCC

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

**In-app purchases:** none


## Frequently asked questions

### Is HamAntCal free?

HamAntCal costs $0.99, and also offers in-app purchases.

### Is HamAlert free?

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

### Which has better reviews, HamAntCal or HamAlert?

HamAntCal is rated higher. HamAntCal averages 4.6 out of 5 from 57 ratings, while HamAlert averages 4.0 from 34 ratings.

### Do HamAntCal or HamAlert have ads?

Neither HamAntCal nor HamAlert shows ads.

### Which is updated more often, HamAntCal or HamAlert?

HamAntCal ships an update every 31 months, and HamAlert every 5 months. Most recently, HamAntCal was updated on October 11, 2026 and HamAlert on October 16, 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.*