# HamAntCal+ vs On

HamAntCal+ and On both sit at 4.4 stars, but that hides the real split: 100% of HamAntCal+'s written reviews are positive against 50% of On's. HamAntCal+ also leads on chart position (#176 vs unranked) and iOS requirement (13.0 vs 15.6). On's advantage is price (Free vs $1.99) and update cadence (monthly vs every 55 months). On rating, ratings volume, ads and in-app purchases there is nothing between them.

On is free to download; HamAntCal+ costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.4 for HamAntCal+ against 4.4 for On. Both are backed by a comparable volume of ratings — 8 and 13 respectively. Written reviews are what separate them: 100% of HamAntCal+'s written reviews are positive against 50% of On's.

HamAntCal+ ships an update every 55 months, On monthly. The most recent releases landed on October 7, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | HamAntCal+ | On |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | [4.4 (8 ratings)](https://appshunter.io/ios/app/hamantcal-plus/id1069262620/reviews) | [4.4 (13 ratings)](https://appshunter.io/ios/app/on-air-net-scraper/id1536271710/reviews) |
| Number of ratings | 8 | **13** |
| Positive reviews | **100.0% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 55 months | **Monthly** |
| Monetization | Paid | **Free** |
| Best chart rank | **#176** | — |
| Size | 2 MB | 30 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 17+ |
| Developer | [State Road 41 Apps LLC](https://appshunter.io/developer/986230800) | [Christopher Robson](https://appshunter.io/developer/1536271712) |

## What reviewers say

### HamAntCal+

[App page](https://appshunter.io/ios/app/hamantcal-plus/id1069262620)

**Currently charting:** #176 Top Paid · Utilities (US App Store)

This app helps amateur radio enthusiasts calculate the precise starting lengths for various antenna types. It supports multiple units of measurement and allows for adjustments based on antenna diameter and configuration.

**Highlights:** Calculate antenna lengths in feet/inches or metric, Supports Dipole, Inverted Vee, and Vertical antennas, Adjust calculations for antenna element diameter, Save up to 6 antenna calculations, Calculate for free space or centered frequency, Inverted Vee calculator with angle adjustment

**Features:** Vision Pro support

**In-app purchases:** none


### On

[App page](https://appshunter.io/ios/app/on-air-net-scraper/id1536271710)

This tool assists amateur radio operators with managing on-air nets and check-ins. It offers real-time messaging, email integration, and detailed operator information retrieval. The app supports multiple simultaneous sessions and configurable displays for efficient communication and tracking.

**Highlights:** Real-time net check-in tracking, Instant messaging (AIM) sessions, Integrated email client, Configurable information displays, QRZ/QRZCQ call sign lookup, WebSDR audio streaming, QRZ Logbook integration

**In-app purchases:** none


## Frequently asked questions

### Is HamAntCal+ free?

HamAntCal+ costs $1.99, with no in-app purchases.

### Is On free?

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

### Which has better reviews, HamAntCal+ or On?

HamAntCal+ and On are both rated 4.4 out of 5 on the App Store, from 8 and 13 ratings respectively.

### Do HamAntCal+ or On have ads?

Neither HamAntCal+ nor On shows ads.

### Which is updated more often, HamAntCal+ or On?

HamAntCal+ ships an update every 55 months, and On monthly. Most recently, HamAntCal+ was updated on October 7, 2026 and On on October 15, 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.*