# Simple Hex Calc vs Antenna+

The clearest difference is price: Antenna+ at Free against Simple Hex Calc's $0.99. Antenna+ also leads on rating (5.0 vs 4.5) and update cadence (every 5 weeks vs every 5 months). Simple Hex Calc's advantage is in-app purchases (none vs 2) and review sentiment (94% vs 60%). On ads, monetization model and device support there is nothing between them.

Antenna+ is free to download; Simple Hex Calc costs $0.99 up front. Antenna+ sells 2 in-app purchases, starting at $1.99 per month. Simple Hex Calc asks for nothing beyond the download.

Antenna+ holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Simple Hex Calc has 8 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 94% of Simple Hex Calc's written reviews are positive against 60% of Antenna+'s, so the app with the better star average is not the one people write more warmly about.

Simple Hex Calc ships an update every 5 months, Antenna+ every 5 weeks. The most recent releases landed on October 31, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | Simple Hex Calc | Antenna+ |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [4.5 (8 ratings)](https://appshunter.io/ios/app/simple-hex-calc/id335773208/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/antenna-plus-cwpdk31dtmf/id466305239/reviews)** |
| Number of ratings | **8** | 1 |
| Positive reviews | **94.4% of reviews** | 60.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 5 weeks** |
| Monetization | Paid | Paid |
| Size | 1 MB | 11 MB |
| Requires iOS | 27.0 | **17.6** |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | +4 |
| Developer | [Hiroki Ishiura](https://appshunter.io/developer/335773211) | [Verosocial Studio](https://appshunter.io/developer/354566841) |

## What reviewers say

### Simple Hex Calc

[App page](https://appshunter.io/ios/app/simple-hex-calc/id335773208)

This utility app provides IT programmers with a pocket calculator for performing arithmetic and logical operations on numbers in various bases. It offers extensive configuration options for bit length, signed/unsigned modes, and data display formats, with a reference manual included.

**Highlights:** Arithmetic and logical operations, Multiple number base support (2/8/10/16), Bit shift, rotate, set, clear, and order operations, Memory operations (save, load, swap), Configurable bit length and signed/unsigned modes, Cut, copy, and paste results, Reference manual included

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

**In-app purchases:** none


### Antenna+

[App page](https://appshunter.io/ios/app/antenna-plus-cwpdk31dtmf/id466305239)

This toolkit offers amateur radio operators and RF hobbyists essential formulas and instant results for antenna design, feedline loss, and signal utilities. It includes calculators for antenna length, frequency conversion, VSWR, and propagation planning, along with DTMF and Morse code tools.

**Highlights:** Antenna length calculators, Frequency-to-wavelength conversion, VSWR and ERP calculators, Horizon visibility and solar calculators, DTMF decoding/keying, Morse/PSK31 tools

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly All Access Pro Usage | $1.99 | per month |
| Antenna Pro lifetime Upgrade | $14.99 | one-time |


## Frequently asked questions

### Is Simple Hex Calc free?

Simple Hex Calc costs $0.99, with no in-app purchases.

### Is Antenna+ free?

Antenna+ is free to download, with in-app purchases available.

### Which has better reviews, Simple Hex Calc or Antenna+?

Antenna+ is rated higher. Simple Hex Calc averages 4.5 out of 5 from 8 ratings, while Antenna+ averages 5.0 from 1 ratings.

### Do Simple Hex Calc or Antenna+ have ads?

Neither Simple Hex Calc nor Antenna+ shows ads.

### Which is updated more often, Simple Hex Calc or Antenna+?

Simple Hex Calc ships an update every 5 months, and Antenna+ every 5 weeks. Most recently, Simple Hex Calc was updated on October 31, 2026 and Antenna+ on November 1, 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.*