# Inductor Calculator Master vs HamBand

The clearest difference is in-app purchases: HamBand at none against Inductor Calculator Master's 2. HamBand also leads on ads (none vs shown). Inductor Calculator Master's advantage is update cadence (daily vs every 10 days) and iOS requirement (13.0 vs 26.0). On price and device support there is nothing between them.

Both are free to download. Inductor Calculator Master sells 2 one-off in-app purchases. HamBand asks for nothing beyond the download.

Inductor Calculator Master ships an update daily, HamBand every 10 days. The most recent releases landed on October 31, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Inductor Calculator Master | HamBand |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/hamband/id6772585467/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Daily** | Every 10 days |
| Monetization | — | Free |
| Size | 33 MB | 2 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Le Minh Tran](https://appshunter.io/developer/1896777000) | [TAYLOR JOHN TRANSUE](https://appshunter.io/developer/6772585469) |

## What reviewers say

### Inductor Calculator Master

[App page](https://appshunter.io/ios/app/inductor-calculator-master/id6772124135)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |
| Premium Upgrade | $1.99 | one-time |


### HamBand

[App page](https://appshunter.io/ios/app/hamband/id6772585467)

This app provides amateur radio operators with real-time HF band condition assessments using live solar weather data. It offers band ratings, a greyline visualizer, and trend charts to help predict propagation. An Apple Watch companion app is also available for quick access to information.

**Highlights:** Real-time HF band condition ratings, Greyline visualizer for propagation, 7-day trend charts for solar data, Live Solar Flux Index and K-Index, Apple Watch companion app and complication, No subscriptions, accounts, or ads

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Inductor Calculator Master free?

Inductor Calculator Master is free to download, with in-app purchases available.

### Is HamBand free?

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

### Do Inductor Calculator Master or HamBand have ads?

Inductor Calculator Master shows ads; HamBand does not.

### Which is updated more often, Inductor Calculator Master or HamBand?

Inductor Calculator Master ships an update daily, and HamBand every 10 days. Most recently, Inductor Calculator Master was updated on October 31, 2026 and HamBand 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.*