# HexaCalc vs Protern Clock

The clearest difference is price: HexaCalc at Free against Protern Clock's $9.99. HexaCalc also leads on update cadence (monthly vs every 6 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

HexaCalc is free to download; Protern Clock costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

HexaCalc ships an update monthly, Protern Clock every 6 months. The most recent releases landed on October 6, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | HexaCalc | Protern Clock |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | **[4.9 (25 ratings)](https://appshunter.io/ios/app/hexacalc/id1529225315/reviews)** | — |
| Number of ratings | **25** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 6 months |
| Monetization | Free | — |
| Size | 2 MB | 27 MB |
| Requires iOS | **15.0** | 16.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Anthony Hopkins](https://appshunter.io/developer/1529225407) | [Proskida](https://appshunter.io/developer/1584744490) |

## What reviewers say

### HexaCalc

[App page](https://appshunter.io/ios/app/hexacalc/id1529225315)

This free utility app provides seamless number system conversions between hexadecimal, binary, and decimal. It offers a clean, customizable interface with full calculation history and supports essential arithmetic and bitwise operations.

**Highlights:** Hexadecimal, binary, and decimal conversions, Full calculation history, Customizable interface and app icon, Arithmetic and bitwise operations, Tabbed interface for focused use, Multitasking and Slide Over support

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

**In-app purchases:** none


### Protern Clock

[App page](https://appshunter.io/ios/app/protern-clock-ltc-generator/id6444395457)

**In-app purchases:** none


## Frequently asked questions

### Is HexaCalc free?

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

### Is Protern Clock free?

Protern Clock costs $9.99, with no in-app purchases.

### Do HexaCalc or Protern Clock have ads?

Neither HexaCalc nor Protern Clock shows ads.

### Which is updated more often, HexaCalc or Protern Clock?

HexaCalc ships an update monthly, and Protern Clock every 6 months. Most recently, HexaCalc was updated on October 6, 2026 and Protern Clock on October 10, 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.*